diff --git a/src/Buffer.test.ts b/src/Buffer.test.ts deleted file mode 100644 index 042c42d5..00000000 --- a/src/Buffer.test.ts +++ /dev/null @@ -1,1398 +0,0 @@ -/** - * Copyright (c) 2017 The xterm.js authors. All rights reserved. - * @license MIT - */ - -import { assert, expect } from 'chai'; -import { Buffer } from './common/buffer/Buffer'; -import { CircularList } from 'common/CircularList'; -import { TestTerminal, MockOptionsService, MockBufferService } from './TestUtils.test'; -import { BufferLine, CellData, DEFAULT_ATTR_DATA } from 'common/buffer/BufferLine'; - -const INIT_COLS = 80; -const INIT_ROWS = 24; -const INIT_SCROLLBACK = 1000; - -describe('Buffer', () => { - let optionsService: MockOptionsService; - let bufferService: MockBufferService; - let buffer: Buffer; - - beforeEach(() => { - optionsService = new MockOptionsService({ scrollback: INIT_SCROLLBACK }); - bufferService = new MockBufferService(INIT_COLS, INIT_ROWS); - buffer = new Buffer(true, optionsService, bufferService); - }); - - describe('constructor', () => { - it('should create a CircularList with max length equal to rows + scrollback, for its lines', () => { - assert.instanceOf(buffer.lines, CircularList); - assert.equal(buffer.lines.maxLength, bufferService.rows + INIT_SCROLLBACK); - }); - it('should set the Buffer\'s scrollBottom value equal to the terminal\'s rows -1', () => { - assert.equal(buffer.scrollBottom, bufferService.rows - 1); - }); - }); - - describe('fillViewportRows', () => { - it('should fill the buffer with blank lines based on the size of the viewport', () => { - const blankLineChar = buffer.getBlankLine(DEFAULT_ATTR_DATA).loadCell(0, new CellData()).getAsCharData(); - buffer.fillViewportRows(); - assert.equal(buffer.lines.length, INIT_ROWS); - for (let y = 0; y < INIT_ROWS; y++) { - assert.equal(buffer.lines.get(y).length, INIT_COLS); - for (let x = 0; x < INIT_COLS; x++) { - assert.deepEqual(buffer.lines.get(y).loadCell(x, new CellData()).getAsCharData(), blankLineChar); - } - } - }); - }); - - describe('getWrappedRangeForLine', () => { - describe('non-wrapped', () => { - it('should return a single row for the first row', () => { - buffer.fillViewportRows(); - assert.deepEqual(buffer.getWrappedRangeForLine(0), { first: 0, last: 0 }); - }); - it('should return a single row for a middle row', () => { - buffer.fillViewportRows(); - assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 12, last: 12 }); - }); - it('should return a single row for the last row', () => { - buffer.fillViewportRows(); - assert.deepEqual(buffer.getWrappedRangeForLine(buffer.lines.length - 1), { first: 23, last: 23 }); - }); - }); - describe('wrapped', () => { - it('should return a range for the first row', () => { - buffer.fillViewportRows(); - buffer.lines.get(1).isWrapped = true; - assert.deepEqual(buffer.getWrappedRangeForLine(0), { first: 0, last: 1 }); - }); - it('should return a range for a middle row wrapping upwards', () => { - buffer.fillViewportRows(); - buffer.lines.get(12).isWrapped = true; - assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 11, last: 12 }); - }); - it('should return a range for a middle row wrapping downwards', () => { - buffer.fillViewportRows(); - buffer.lines.get(13).isWrapped = true; - assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 12, last: 13 }); - }); - it('should return a range for a middle row wrapping both ways', () => { - buffer.fillViewportRows(); - buffer.lines.get(11).isWrapped = true; - buffer.lines.get(12).isWrapped = true; - buffer.lines.get(13).isWrapped = true; - buffer.lines.get(14).isWrapped = true; - assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 10, last: 14 }); - }); - it('should return a range for the last row', () => { - buffer.fillViewportRows(); - buffer.lines.get(23).isWrapped = true; - assert.deepEqual(buffer.getWrappedRangeForLine(buffer.lines.length - 1), { first: 22, last: 23 }); - }); - it('should return a range for a row that wraps upward to first row', () => { - buffer.fillViewportRows(); - buffer.lines.get(1).isWrapped = true; - assert.deepEqual(buffer.getWrappedRangeForLine(1), { first: 0, last: 1 }); - }); - it('should return a range for a row that wraps downward to last row', () => { - buffer.fillViewportRows(); - buffer.lines.get(buffer.lines.length - 1).isWrapped = true; - assert.deepEqual(buffer.getWrappedRangeForLine(buffer.lines.length - 2), { first: 22, last: 23 }); - }); - }); - }); - - describe('resize', () => { - describe('column size is reduced', () => { - it('should trim the data in the buffer', () => { - buffer.fillViewportRows(); - buffer.resize(INIT_COLS / 2, INIT_ROWS); - assert.equal(buffer.lines.length, INIT_ROWS); - for (let i = 0; i < INIT_ROWS; i++) { - assert.equal(buffer.lines.get(i).length, INIT_COLS / 2); - } - }); - }); - - describe('column size is increased', () => { - it('should add pad columns', () => { - buffer.fillViewportRows(); - buffer.resize(INIT_COLS + 10, INIT_ROWS); - assert.equal(buffer.lines.length, INIT_ROWS); - for (let i = 0; i < INIT_ROWS; i++) { - assert.equal(buffer.lines.get(i).length, INIT_COLS + 10); - } - }); - }); - - describe('row size reduced', () => { - it('should trim blank lines from the end', () => { - buffer.fillViewportRows(); - buffer.resize(INIT_COLS, INIT_ROWS - 10); - assert.equal(buffer.lines.length, INIT_ROWS - 10); - }); - - it('should move the viewport down when it\'s at the end', () => { - buffer.fillViewportRows(); - // Set cursor y to have 5 blank lines below it - buffer.y = INIT_ROWS - 5 - 1; - buffer.resize(INIT_COLS, INIT_ROWS - 10); - // Trim 5 rows - assert.equal(buffer.lines.length, INIT_ROWS - 5); - // Shift the viewport down 5 rows - assert.equal(buffer.ydisp, 5); - assert.equal(buffer.ybase, 5); - }); - - describe('no scrollback', () => { - it('should trim from the top of the buffer when the cursor reaches the bottom', () => { - buffer = new Buffer(true, new MockOptionsService({ scrollback: 0 }), bufferService); - assert.equal(buffer.lines.maxLength, INIT_ROWS); - buffer.y = INIT_ROWS - 1; - buffer.fillViewportRows(); - let chData = buffer.lines.get(5).loadCell(0, new CellData()).getAsCharData(); - chData[1] = 'a'; - buffer.lines.get(5).setCell(0, CellData.fromCharData(chData)); - chData = buffer.lines.get(INIT_ROWS - 1).loadCell(0, new CellData()).getAsCharData(); - chData[1] = 'b'; - buffer.lines.get(INIT_ROWS - 1).setCell(0, CellData.fromCharData(chData)); - buffer.resize(INIT_COLS, INIT_ROWS - 5); - assert.equal(buffer.lines.get(0).loadCell(0, new CellData()).getAsCharData()[1], 'a'); - assert.equal(buffer.lines.get(INIT_ROWS - 1 - 5).loadCell(0, new CellData()).getAsCharData()[1], 'b'); - }); - }); - }); - - describe('row size increased', () => { - describe('empty buffer', () => { - it('should add blank lines to end', () => { - buffer.fillViewportRows(); - assert.equal(buffer.ydisp, 0); - buffer.resize(INIT_COLS, INIT_ROWS + 10); - assert.equal(buffer.ydisp, 0); - assert.equal(buffer.lines.length, INIT_ROWS + 10); - }); - }); - - describe('filled buffer', () => { - it('should show more of the buffer above', () => { - buffer.fillViewportRows(); - // Create 10 extra blank lines - for (let i = 0; i < 10; i++) { - buffer.lines.push(buffer.getBlankLine(DEFAULT_ATTR_DATA)); - } - // Set cursor to the bottom of the buffer - buffer.y = INIT_ROWS - 1; - // Scroll down 10 lines - buffer.ybase = 10; - buffer.ydisp = 10; - assert.equal(buffer.lines.length, INIT_ROWS + 10); - buffer.resize(INIT_COLS, INIT_ROWS + 5); - // Should be should 5 more lines - assert.equal(buffer.ydisp, 5); - assert.equal(buffer.ybase, 5); - // Should not trim the buffer - assert.equal(buffer.lines.length, INIT_ROWS + 10); - }); - - it('should show more of the buffer below when the viewport is at the top of the buffer', () => { - buffer.fillViewportRows(); - // Create 10 extra blank lines - for (let i = 0; i < 10; i++) { - buffer.lines.push(buffer.getBlankLine(DEFAULT_ATTR_DATA)); - } - // Set cursor to the bottom of the buffer - buffer.y = INIT_ROWS - 1; - // Scroll down 10 lines - buffer.ybase = 10; - buffer.ydisp = 0; - assert.equal(buffer.lines.length, INIT_ROWS + 10); - buffer.resize(INIT_COLS, INIT_ROWS + 5); - // The viewport should remain at the top - assert.equal(buffer.ydisp, 0); - // The buffer ybase should move up 5 lines - assert.equal(buffer.ybase, 5); - // Should not trim the buffer - assert.equal(buffer.lines.length, INIT_ROWS + 10); - }); - }); - }); - - describe('row and column increased', () => { - it('should resize properly', () => { - buffer.fillViewportRows(); - buffer.resize(INIT_COLS + 5, INIT_ROWS + 5); - assert.equal(buffer.lines.length, INIT_ROWS + 5); - for (let i = 0; i < INIT_ROWS + 5; i++) { - assert.equal(buffer.lines.get(i).length, INIT_COLS + 5); - } - }); - }); - - describe('reflow', () => { - it('should not wrap empty lines', () => { - buffer.fillViewportRows(); - assert.equal(buffer.lines.length, INIT_ROWS); - buffer.resize(INIT_COLS - 5, INIT_ROWS); - assert.equal(buffer.lines.length, INIT_ROWS); - }); - it('should shrink row length', () => { - buffer.fillViewportRows(); - buffer.resize(5, 10); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).length, 5); - assert.equal(buffer.lines.get(1).length, 5); - assert.equal(buffer.lines.get(2).length, 5); - assert.equal(buffer.lines.get(3).length, 5); - assert.equal(buffer.lines.get(4).length, 5); - assert.equal(buffer.lines.get(5).length, 5); - assert.equal(buffer.lines.get(6).length, 5); - assert.equal(buffer.lines.get(7).length, 5); - assert.equal(buffer.lines.get(8).length, 5); - assert.equal(buffer.lines.get(9).length, 5); - }); - it('should wrap and unwrap lines', () => { - buffer.fillViewportRows(); - buffer.resize(5, 10); - const firstLine = buffer.lines.get(0); - for (let i = 0; i < 5; i++) { - const code = 'a'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - firstLine.set(i, [null, char, 1, code]); - } - buffer.y = 1; - assert.equal(buffer.lines.get(0).length, 5); - assert.equal(buffer.lines.get(0).translateToString(), 'abcde'); - buffer.resize(1, 10); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(), 'a'); - assert.equal(buffer.lines.get(1).translateToString(), 'b'); - assert.equal(buffer.lines.get(2).translateToString(), 'c'); - assert.equal(buffer.lines.get(3).translateToString(), 'd'); - assert.equal(buffer.lines.get(4).translateToString(), 'e'); - assert.equal(buffer.lines.get(5).translateToString(), ' '); - assert.equal(buffer.lines.get(6).translateToString(), ' '); - assert.equal(buffer.lines.get(7).translateToString(), ' '); - assert.equal(buffer.lines.get(8).translateToString(), ' '); - assert.equal(buffer.lines.get(9).translateToString(), ' '); - buffer.resize(5, 10); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(), 'abcde'); - assert.equal(buffer.lines.get(1).translateToString(), ' '); - assert.equal(buffer.lines.get(2).translateToString(), ' '); - assert.equal(buffer.lines.get(3).translateToString(), ' '); - assert.equal(buffer.lines.get(4).translateToString(), ' '); - assert.equal(buffer.lines.get(5).translateToString(), ' '); - assert.equal(buffer.lines.get(6).translateToString(), ' '); - assert.equal(buffer.lines.get(7).translateToString(), ' '); - assert.equal(buffer.lines.get(8).translateToString(), ' '); - assert.equal(buffer.lines.get(9).translateToString(), ' '); - }); - it('should discard parts of wrapped lines that go out of the scrollback', () => { - buffer.fillViewportRows(); - optionsService.options.scrollback = 1; - buffer.resize(10, 5); - const lastLine = buffer.lines.get(3); - for (let i = 0; i < 10; i++) { - const code = 'a'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - lastLine.set(i, [null, char, 1, code]); - } - assert.equal(buffer.lines.length, 5); - buffer.y = 4; - buffer.resize(2, 5); - assert.equal(buffer.y, 4); - assert.equal(buffer.ybase, 1); - assert.equal(buffer.lines.length, 6); - assert.equal(buffer.lines.get(0).translateToString(), 'ab'); - assert.equal(buffer.lines.get(1).translateToString(), 'cd'); - assert.equal(buffer.lines.get(2).translateToString(), 'ef'); - assert.equal(buffer.lines.get(3).translateToString(), 'gh'); - assert.equal(buffer.lines.get(4).translateToString(), 'ij'); - assert.equal(buffer.lines.get(5).translateToString(), ' '); - buffer.resize(1, 5); - assert.equal(buffer.y, 4); - assert.equal(buffer.ybase, 1); - assert.equal(buffer.lines.length, 6); - assert.equal(buffer.lines.get(0).translateToString(), 'f'); - assert.equal(buffer.lines.get(1).translateToString(), 'g'); - assert.equal(buffer.lines.get(2).translateToString(), 'h'); - assert.equal(buffer.lines.get(3).translateToString(), 'i'); - assert.equal(buffer.lines.get(4).translateToString(), 'j'); - assert.equal(buffer.lines.get(5).translateToString(), ' '); - buffer.resize(10, 5); - assert.equal(buffer.y, 1); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 5); - assert.equal(buffer.lines.get(0).translateToString(), 'fghij '); - assert.equal(buffer.lines.get(1).translateToString(), ' '); - assert.equal(buffer.lines.get(2).translateToString(), ' '); - assert.equal(buffer.lines.get(3).translateToString(), ' '); - assert.equal(buffer.lines.get(4).translateToString(), ' '); - }); - it('should remove the correct amount of rows when reflowing larger', () => { - // This is a regression test to ensure that successive wrapped lines that are getting - // 3+ lines removed on a reflow actually remove the right lines - buffer.fillViewportRows(); - buffer.resize(10, 10); - buffer.y = 2; - const firstLine = buffer.lines.get(0); - const secondLine = buffer.lines.get(1); - for (let i = 0; i < 10; i++) { - const code = 'a'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - firstLine.set(i, [null, char, 1, code]); - } - for (let i = 0; i < 10; i++) { - const code = '0'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - secondLine.set(i, [null, char, 1, code]); - } - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(), 'abcdefghij'); - assert.equal(buffer.lines.get(1).translateToString(), '0123456789'); - for (let i = 2; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - buffer.resize(2, 10); - assert.equal(buffer.ybase, 1); - assert.equal(buffer.lines.length, 11); - assert.equal(buffer.lines.get(0).translateToString(), 'ab'); - assert.equal(buffer.lines.get(1).translateToString(), 'cd'); - assert.equal(buffer.lines.get(2).translateToString(), 'ef'); - assert.equal(buffer.lines.get(3).translateToString(), 'gh'); - assert.equal(buffer.lines.get(4).translateToString(), 'ij'); - assert.equal(buffer.lines.get(5).translateToString(), '01'); - assert.equal(buffer.lines.get(6).translateToString(), '23'); - assert.equal(buffer.lines.get(7).translateToString(), '45'); - assert.equal(buffer.lines.get(8).translateToString(), '67'); - assert.equal(buffer.lines.get(9).translateToString(), '89'); - assert.equal(buffer.lines.get(10).translateToString(), ' '); - buffer.resize(10, 10); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(), 'abcdefghij'); - assert.equal(buffer.lines.get(1).translateToString(), '0123456789'); - for (let i = 2; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - }); - it('should transfer combined char data over to reflowed lines', () => { - buffer.fillViewportRows(); - buffer.resize(4, 3); - buffer.y = 2; - const firstLine = buffer.lines.get(0); - firstLine.set(0, [ null, 'a', 1, 'a'.charCodeAt(0) ]); - firstLine.set(1, [ null, 'b', 1, 'b'.charCodeAt(0) ]); - firstLine.set(2, [ null, 'c', 1, 'c'.charCodeAt(0) ]); - firstLine.set(3, [ null, '😁', 1, '😁'.charCodeAt(0) ]); - assert.equal(buffer.lines.length, 3); - assert.equal(buffer.lines.get(0).translateToString(), 'abc😁'); - assert.equal(buffer.lines.get(1).translateToString(), ' '); - buffer.resize(2, 3); - assert.equal(buffer.lines.get(0).translateToString(), 'ab'); - assert.equal(buffer.lines.get(1).translateToString(), 'c😁'); - }); - it('should adjust markers when reflowing', () => { - buffer.fillViewportRows(); - buffer.resize(10, 16); - for (let i = 0; i < 10; i++) { - const code = 'a'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - buffer.lines.get(0).set(i, [null, char, 1, code]); - } - for (let i = 0; i < 10; i++) { - const code = '0'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - buffer.lines.get(1).set(i, [null, char, 1, code]); - } - for (let i = 0; i < 10; i++) { - const code = 'k'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - buffer.lines.get(2).set(i, [null, char, 1, code]); - } - buffer.y = 3; - // Buffer: - // abcdefghij - // 0123456789 - // abcdefghij - const firstMarker = buffer.addMarker(0); - const secondMarker = buffer.addMarker(1); - const thirdMarker = buffer.addMarker(2); - assert.equal(buffer.lines.get(0).translateToString(), 'abcdefghij'); - assert.equal(buffer.lines.get(1).translateToString(), '0123456789'); - assert.equal(buffer.lines.get(2).translateToString(), 'klmnopqrst'); - assert.equal(firstMarker.line, 0); - assert.equal(secondMarker.line, 1); - assert.equal(thirdMarker.line, 2); - buffer.resize(2, 16); - assert.equal(buffer.lines.get(0).translateToString(), 'ab'); - assert.equal(buffer.lines.get(1).translateToString(), 'cd'); - assert.equal(buffer.lines.get(2).translateToString(), 'ef'); - assert.equal(buffer.lines.get(3).translateToString(), 'gh'); - assert.equal(buffer.lines.get(4).translateToString(), 'ij'); - assert.equal(buffer.lines.get(5).translateToString(), '01'); - assert.equal(buffer.lines.get(6).translateToString(), '23'); - assert.equal(buffer.lines.get(7).translateToString(), '45'); - assert.equal(buffer.lines.get(8).translateToString(), '67'); - assert.equal(buffer.lines.get(9).translateToString(), '89'); - assert.equal(buffer.lines.get(10).translateToString(), 'kl'); - assert.equal(buffer.lines.get(11).translateToString(), 'mn'); - assert.equal(buffer.lines.get(12).translateToString(), 'op'); - assert.equal(buffer.lines.get(13).translateToString(), 'qr'); - assert.equal(buffer.lines.get(14).translateToString(), 'st'); - assert.equal(firstMarker.line, 0, 'first marker should remain unchanged'); - assert.equal(secondMarker.line, 5, 'second marker should be shifted since the first line wrapped'); - assert.equal(thirdMarker.line, 10, 'third marker should be shifted since the first and second lines wrapped'); - buffer.resize(10, 16); - assert.equal(buffer.lines.get(0).translateToString(), 'abcdefghij'); - assert.equal(buffer.lines.get(1).translateToString(), '0123456789'); - assert.equal(buffer.lines.get(2).translateToString(), 'klmnopqrst'); - assert.equal(firstMarker.line, 0, 'first marker should remain unchanged'); - assert.equal(secondMarker.line, 1, 'second marker should be restored to it\'s original line'); - assert.equal(thirdMarker.line, 2, 'third marker should be restored to it\'s original line'); - assert.equal(firstMarker.isDisposed, false); - assert.equal(secondMarker.isDisposed, false); - assert.equal(thirdMarker.isDisposed, false); - }); - it('should dispose markers whose rows are trimmed during a reflow', () => { - buffer.fillViewportRows(); - optionsService.options.scrollback = 1; - buffer.resize(10, 11); - for (let i = 0; i < 10; i++) { - const code = 'a'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - buffer.lines.get(0).set(i, [null, char, 1, code]); - } - for (let i = 0; i < 10; i++) { - const code = '0'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - buffer.lines.get(1).set(i, [null, char, 1, code]); - } - for (let i = 0; i < 10; i++) { - const code = 'k'.charCodeAt(0) + i; - const char = String.fromCharCode(code); - buffer.lines.get(2).set(i, [null, char, 1, code]); - } - buffer.y = 10; - // Buffer: - // abcdefghij - // 0123456789 - // abcdefghij - const firstMarker = buffer.addMarker(0); - const secondMarker = buffer.addMarker(1); - const thirdMarker = buffer.addMarker(2); - buffer.y = 3; - assert.equal(buffer.lines.get(0).translateToString(), 'abcdefghij'); - assert.equal(buffer.lines.get(1).translateToString(), '0123456789'); - assert.equal(buffer.lines.get(2).translateToString(), 'klmnopqrst'); - assert.equal(firstMarker.line, 0); - assert.equal(secondMarker.line, 1); - assert.equal(thirdMarker.line, 2); - buffer.resize(2, 11); - assert.equal(buffer.lines.get(0).translateToString(), 'ij'); - assert.equal(buffer.lines.get(1).translateToString(), '01'); - assert.equal(buffer.lines.get(2).translateToString(), '23'); - assert.equal(buffer.lines.get(3).translateToString(), '45'); - assert.equal(buffer.lines.get(4).translateToString(), '67'); - assert.equal(buffer.lines.get(5).translateToString(), '89'); - assert.equal(buffer.lines.get(6).translateToString(), 'kl'); - assert.equal(buffer.lines.get(7).translateToString(), 'mn'); - assert.equal(buffer.lines.get(8).translateToString(), 'op'); - assert.equal(buffer.lines.get(9).translateToString(), 'qr'); - assert.equal(buffer.lines.get(10).translateToString(), 'st'); - assert.equal(secondMarker.line, 1, 'second marker should remain the same as it was shifted 4 and trimmed 4'); - assert.equal(thirdMarker.line, 6, 'third marker should be shifted since the first and second lines wrapped'); - assert.equal(firstMarker.isDisposed, true, 'first marker was trimmed'); - assert.equal(secondMarker.isDisposed, false); - assert.equal(thirdMarker.isDisposed, false); - buffer.resize(10, 11); - assert.equal(buffer.lines.get(0).translateToString(), 'ij '); - assert.equal(buffer.lines.get(1).translateToString(), '0123456789'); - assert.equal(buffer.lines.get(2).translateToString(), 'klmnopqrst'); - assert.equal(secondMarker.line, 1, 'second marker should be restored'); - assert.equal(thirdMarker.line, 2, 'third marker should be restored'); - }); - it('should correctly reflow wrapped lines that end in null space (via tab char)', () => { - buffer.fillViewportRows(); - buffer.resize(4, 10); - buffer.y = 2; - buffer.lines.get(0).set(0, [null, 'a', 1, 'a'.charCodeAt(0)]); - buffer.lines.get(0).set(1, [null, 'b', 1, 'b'.charCodeAt(0)]); - buffer.lines.get(1).set(0, [null, 'c', 1, 'c'.charCodeAt(0)]); - buffer.lines.get(1).set(1, [null, 'd', 1, 'd'.charCodeAt(0)]); - buffer.lines.get(1).isWrapped = true; - // Buffer: - // "ab " (wrapped) - // "cd" - buffer.resize(5, 10); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(true), 'ab c'); - assert.equal(buffer.lines.get(1).translateToString(false), 'd '); - buffer.resize(6, 10); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(true), 'ab cd'); - assert.equal(buffer.lines.get(1).translateToString(false), ' '); - }); - it('should wrap wide characters correctly when reflowing larger', () => { - buffer.fillViewportRows(); - buffer.resize(12, 10); - buffer.y = 2; - for (let i = 0; i < 12; i += 4) { - buffer.lines.get(0).set(i, [null, '汉', 2, '汉'.charCodeAt(0)]); - buffer.lines.get(1).set(i, [null, '汉', 2, '汉'.charCodeAt(0)]); - } - for (let i = 2; i < 12; i += 4) { - buffer.lines.get(0).set(i, [null, '语', 2, '语'.charCodeAt(0)]); - buffer.lines.get(1).set(i, [null, '语', 2, '语'.charCodeAt(0)]); - } - for (let i = 1; i < 12; i += 2) { - buffer.lines.get(0).set(i, [null, '', 0, undefined]); - buffer.lines.get(1).set(i, [null, '', 0, undefined]); - } - buffer.lines.get(1).isWrapped = true; - // Buffer: - // 汉语汉语汉语 (wrapped) - // 汉语汉语汉语 - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉语汉语'); - assert.equal(buffer.lines.get(1).translateToString(true), '汉语汉语汉语'); - buffer.resize(13, 10); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉语汉语'); - assert.equal(buffer.lines.get(0).translateToString(false), '汉语汉语汉语 '); - assert.equal(buffer.lines.get(1).translateToString(true), '汉语汉语汉语'); - assert.equal(buffer.lines.get(1).translateToString(false), '汉语汉语汉语 '); - buffer.resize(14, 10); - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉语汉语汉'); - assert.equal(buffer.lines.get(0).translateToString(false), '汉语汉语汉语汉'); - assert.equal(buffer.lines.get(1).translateToString(true), '语汉语汉语'); - assert.equal(buffer.lines.get(1).translateToString(false), '语汉语汉语 '); - }); - it('should correctly reflow wrapped lines that end in null space (via tab char)', () => { - buffer.fillViewportRows(); - buffer.resize(4, 10); - buffer.y = 2; - buffer.lines.get(0).set(0, [null, 'a', 1, 'a'.charCodeAt(0)]); - buffer.lines.get(0).set(1, [null, 'b', 1, 'b'.charCodeAt(0)]); - buffer.lines.get(1).set(0, [null, 'c', 1, 'c'.charCodeAt(0)]); - buffer.lines.get(1).set(1, [null, 'd', 1, 'd'.charCodeAt(0)]); - buffer.lines.get(1).isWrapped = true; - // Buffer: - // "ab " (wrapped) - // "cd" - buffer.resize(3, 10); - assert.equal(buffer.y, 2); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(false), 'ab '); - assert.equal(buffer.lines.get(1).translateToString(false), ' cd'); - buffer.resize(2, 10); - assert.equal(buffer.y, 3); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(false), 'ab'); - assert.equal(buffer.lines.get(1).translateToString(false), ' '); - assert.equal(buffer.lines.get(2).translateToString(false), 'cd'); - }); - it('should wrap wide characters correctly when reflowing smaller', () => { - buffer.fillViewportRows(); - buffer.resize(12, 10); - buffer.y = 2; - for (let i = 0; i < 12; i += 4) { - buffer.lines.get(0).set(i, [null, '汉', 2, '汉'.charCodeAt(0)]); - buffer.lines.get(1).set(i, [null, '汉', 2, '汉'.charCodeAt(0)]); - } - for (let i = 2; i < 12; i += 4) { - buffer.lines.get(0).set(i, [null, '语', 2, '语'.charCodeAt(0)]); - buffer.lines.get(1).set(i, [null, '语', 2, '语'.charCodeAt(0)]); - } - for (let i = 1; i < 12; i += 2) { - buffer.lines.get(0).set(i, [null, '', 0, undefined]); - buffer.lines.get(1).set(i, [null, '', 0, undefined]); - } - buffer.lines.get(1).isWrapped = true; - // Buffer: - // 汉语汉语汉语 (wrapped) - // 汉语汉语汉语 - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉语汉语'); - assert.equal(buffer.lines.get(1).translateToString(true), '汉语汉语汉语'); - buffer.resize(11, 10); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉语汉'); - assert.equal(buffer.lines.get(1).translateToString(true), '语汉语汉语'); - assert.equal(buffer.lines.get(2).translateToString(true), '汉语'); - buffer.resize(10, 10); - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉语汉'); - assert.equal(buffer.lines.get(1).translateToString(true), '语汉语汉语'); - assert.equal(buffer.lines.get(2).translateToString(true), '汉语'); - buffer.resize(9, 10); - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉语'); - assert.equal(buffer.lines.get(1).translateToString(true), '汉语汉语'); - assert.equal(buffer.lines.get(2).translateToString(true), '汉语汉语'); - buffer.resize(8, 10); - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉语'); - assert.equal(buffer.lines.get(1).translateToString(true), '汉语汉语'); - assert.equal(buffer.lines.get(2).translateToString(true), '汉语汉语'); - buffer.resize(7, 10); - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉'); - assert.equal(buffer.lines.get(1).translateToString(true), '语汉语'); - assert.equal(buffer.lines.get(2).translateToString(true), '汉语汉'); - assert.equal(buffer.lines.get(3).translateToString(true), '语汉语'); - buffer.resize(6, 10); - assert.equal(buffer.lines.get(0).translateToString(true), '汉语汉'); - assert.equal(buffer.lines.get(1).translateToString(true), '语汉语'); - assert.equal(buffer.lines.get(2).translateToString(true), '汉语汉'); - assert.equal(buffer.lines.get(3).translateToString(true), '语汉语'); - }); - - describe('reflowLarger cases', () => { - beforeEach(() => { - // Setup buffer state: - // 'ab' - // 'cd' (wrapped) - // 'ef' - // 'gh' (wrapped) - // 'ij' - // 'kl' (wrapped) - // ' ' - // ' ' - // ' ' - // ' ' - buffer.fillViewportRows(); - buffer.resize(2, 10); - buffer.lines.get(0).set(0, [null, 'a', 1, 'a'.charCodeAt(0)]); - buffer.lines.get(0).set(1, [null, 'b', 1, 'b'.charCodeAt(0)]); - buffer.lines.get(1).set(0, [null, 'c', 1, 'c'.charCodeAt(0)]); - buffer.lines.get(1).set(1, [null, 'd', 1, 'd'.charCodeAt(0)]); - buffer.lines.get(1).isWrapped = true; - buffer.lines.get(2).set(0, [null, 'e', 1, 'e'.charCodeAt(0)]); - buffer.lines.get(2).set(1, [null, 'f', 1, 'f'.charCodeAt(0)]); - buffer.lines.get(3).set(0, [null, 'g', 1, 'g'.charCodeAt(0)]); - buffer.lines.get(3).set(1, [null, 'h', 1, 'h'.charCodeAt(0)]); - buffer.lines.get(3).isWrapped = true; - buffer.lines.get(4).set(0, [null, 'i', 1, 'i'.charCodeAt(0)]); - buffer.lines.get(4).set(1, [null, 'j', 1, 'j'.charCodeAt(0)]); - buffer.lines.get(5).set(0, [null, 'k', 1, 'k'.charCodeAt(0)]); - buffer.lines.get(5).set(1, [null, 'l', 1, 'l'.charCodeAt(0)]); - buffer.lines.get(5).isWrapped = true; - }); - describe('viewport not yet filled', () => { - it('should move the cursor up and add empty lines', () => { - buffer.y = 6; - buffer.resize(4, 10); - assert.equal(buffer.y, 3); - assert.equal(buffer.ydisp, 0); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(), 'abcd'); - assert.equal(buffer.lines.get(1).translateToString(), 'efgh'); - assert.equal(buffer.lines.get(2).translateToString(), 'ijkl'); - for (let i = 3; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines: number[] = []; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - describe('viewport filled, scrollback remaining', () => { - beforeEach(() => { - buffer.y = 9; - }); - describe('ybase === 0', () => { - it('should move the cursor up and add empty lines', () => { - buffer.resize(4, 10); - assert.equal(buffer.y, 6); - assert.equal(buffer.ydisp, 0); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(), 'abcd'); - assert.equal(buffer.lines.get(1).translateToString(), 'efgh'); - assert.equal(buffer.lines.get(2).translateToString(), 'ijkl'); - for (let i = 3; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines: number[] = []; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - describe('ybase !== 0', () => { - beforeEach(() => { - // Add 10 empty rows to start - for (let i = 0; i < 10; i++) { - buffer.lines.splice(0, 0, buffer.getBlankLine(DEFAULT_ATTR_DATA)); - } - buffer.ybase = 10; - }); - describe('&& ydisp === ybase', () => { - it('should adjust the viewport and keep ydisp = ybase', () => { - buffer.ydisp = 10; - buffer.resize(4, 10); - assert.equal(buffer.y, 9); - assert.equal(buffer.ydisp, 7); - assert.equal(buffer.ybase, 7); - assert.equal(buffer.lines.length, 17); - for (let i = 0; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - assert.equal(buffer.lines.get(10).translateToString(), 'abcd'); - assert.equal(buffer.lines.get(11).translateToString(), 'efgh'); - assert.equal(buffer.lines.get(12).translateToString(), 'ijkl'); - for (let i = 13; i < 17; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines: number[] = []; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - describe('&& ydisp !== ybase', () => { - it('should keep ydisp at the same value', () => { - buffer.ydisp = 5; - buffer.resize(4, 10); - assert.equal(buffer.y, 9); - assert.equal(buffer.ydisp, 5); - assert.equal(buffer.ybase, 7); - assert.equal(buffer.lines.length, 17); - for (let i = 0; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - assert.equal(buffer.lines.get(10).translateToString(), 'abcd'); - assert.equal(buffer.lines.get(11).translateToString(), 'efgh'); - assert.equal(buffer.lines.get(12).translateToString(), 'ijkl'); - for (let i = 13; i < 17; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines: number[] = []; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - }); - }); - describe('viewport filled, no scrollback remaining', () => { - // ybase === 0 doesn't make sense here as scrollback=0 isn't really supported - describe('ybase !== 0', () => { - beforeEach(() => { - optionsService.options.scrollback = 10; - // Add 10 empty rows to start - for (let i = 0; i < 10; i++) { - buffer.lines.splice(0, 0, buffer.getBlankLine(DEFAULT_ATTR_DATA)); - } - buffer.y = 9; - buffer.ybase = 10; - }); - describe('&& ydisp === ybase', () => { - it('should trim lines and keep ydisp = ybase', () => { - buffer.ydisp = 10; - buffer.resize(4, 10); - assert.equal(buffer.y, 9); - assert.equal(buffer.ydisp, 7); - assert.equal(buffer.ybase, 7); - assert.equal(buffer.lines.length, 17); - for (let i = 0; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - assert.equal(buffer.lines.get(10).translateToString(), 'abcd'); - assert.equal(buffer.lines.get(11).translateToString(), 'efgh'); - assert.equal(buffer.lines.get(12).translateToString(), 'ijkl'); - for (let i = 13; i < 17; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines: number[] = []; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - describe('&& ydisp !== ybase', () => { - it('should trim lines and not change ydisp', () => { - buffer.ydisp = 5; - buffer.resize(4, 10); - assert.equal(buffer.y, 9); - assert.equal(buffer.ydisp, 5); - assert.equal(buffer.ybase, 7); - assert.equal(buffer.lines.length, 17); - for (let i = 0; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - assert.equal(buffer.lines.get(10).translateToString(), 'abcd'); - assert.equal(buffer.lines.get(11).translateToString(), 'efgh'); - assert.equal(buffer.lines.get(12).translateToString(), 'ijkl'); - for (let i = 13; i < 17; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines: number[] = []; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - }); - }); - }); - describe('reflowSmaller cases', () => { - beforeEach(() => { - // Setup buffer state: - // 'abcd' - // 'efgh' (wrapped) - // 'ijkl' - // ' ' - // ' ' - // ' ' - // ' ' - // ' ' - // ' ' - // ' ' - buffer.fillViewportRows(); - buffer.resize(4, 10); - buffer.lines.get(0).set(0, [null, 'a', 1, 'a'.charCodeAt(0)]); - buffer.lines.get(0).set(1, [null, 'b', 1, 'b'.charCodeAt(0)]); - buffer.lines.get(0).set(2, [null, 'c', 1, 'c'.charCodeAt(0)]); - buffer.lines.get(0).set(3, [null, 'd', 1, 'd'.charCodeAt(0)]); - buffer.lines.get(1).set(0, [null, 'e', 1, 'e'.charCodeAt(0)]); - buffer.lines.get(1).set(1, [null, 'f', 1, 'f'.charCodeAt(0)]); - buffer.lines.get(1).set(2, [null, 'g', 1, 'g'.charCodeAt(0)]); - buffer.lines.get(1).set(3, [null, 'h', 1, 'h'.charCodeAt(0)]); - buffer.lines.get(2).set(0, [null, 'i', 1, 'i'.charCodeAt(0)]); - buffer.lines.get(2).set(1, [null, 'j', 1, 'j'.charCodeAt(0)]); - buffer.lines.get(2).set(2, [null, 'k', 1, 'k'.charCodeAt(0)]); - buffer.lines.get(2).set(3, [null, 'l', 1, 'l'.charCodeAt(0)]); - }); - describe('viewport not yet filled', () => { - it('should move the cursor down', () => { - buffer.y = 3; - buffer.resize(2, 10); - assert.equal(buffer.y, 6); - assert.equal(buffer.ydisp, 0); - assert.equal(buffer.ybase, 0); - assert.equal(buffer.lines.length, 10); - assert.equal(buffer.lines.get(0).translateToString(), 'ab'); - assert.equal(buffer.lines.get(1).translateToString(), 'cd'); - assert.equal(buffer.lines.get(2).translateToString(), 'ef'); - assert.equal(buffer.lines.get(3).translateToString(), 'gh'); - assert.equal(buffer.lines.get(4).translateToString(), 'ij'); - assert.equal(buffer.lines.get(5).translateToString(), 'kl'); - for (let i = 6; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines = [1, 3, 5]; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - describe('viewport filled, scrollback remaining', () => { - beforeEach(() => { - buffer.y = 9; - }); - describe('ybase === 0', () => { - it('should trim the top', () => { - buffer.resize(2, 10); - assert.equal(buffer.y, 9); - assert.equal(buffer.ydisp, 3); - assert.equal(buffer.ybase, 3); - assert.equal(buffer.lines.length, 13); - assert.equal(buffer.lines.get(0).translateToString(), 'ab'); - assert.equal(buffer.lines.get(1).translateToString(), 'cd'); - assert.equal(buffer.lines.get(2).translateToString(), 'ef'); - assert.equal(buffer.lines.get(3).translateToString(), 'gh'); - assert.equal(buffer.lines.get(4).translateToString(), 'ij'); - assert.equal(buffer.lines.get(5).translateToString(), 'kl'); - for (let i = 6; i < 13; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines = [1, 3, 5]; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - describe('ybase !== 0', () => { - beforeEach(() => { - // Add 10 empty rows to start - for (let i = 0; i < 10; i++) { - buffer.lines.splice(0, 0, buffer.getBlankLine(DEFAULT_ATTR_DATA)); - } - buffer.ybase = 10; - }); - describe('&& ydisp === ybase', () => { - it('should adjust the viewport and keep ydisp = ybase', () => { - buffer.ydisp = 10; - buffer.resize(2, 10); - assert.equal(buffer.ydisp, 13); - assert.equal(buffer.ybase, 13); - assert.equal(buffer.lines.length, 23); - for (let i = 0; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - assert.equal(buffer.lines.get(10).translateToString(), 'ab'); - assert.equal(buffer.lines.get(11).translateToString(), 'cd'); - assert.equal(buffer.lines.get(12).translateToString(), 'ef'); - assert.equal(buffer.lines.get(13).translateToString(), 'gh'); - assert.equal(buffer.lines.get(14).translateToString(), 'ij'); - assert.equal(buffer.lines.get(15).translateToString(), 'kl'); - for (let i = 16; i < 23; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines = [11, 13, 15]; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - describe('&& ydisp !== ybase', () => { - it('should keep ydisp at the same value', () => { - buffer.ydisp = 5; - buffer.resize(2, 10); - assert.equal(buffer.ydisp, 5); - assert.equal(buffer.ybase, 13); - assert.equal(buffer.lines.length, 23); - for (let i = 0; i < 10; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - assert.equal(buffer.lines.get(10).translateToString(), 'ab'); - assert.equal(buffer.lines.get(11).translateToString(), 'cd'); - assert.equal(buffer.lines.get(12).translateToString(), 'ef'); - assert.equal(buffer.lines.get(13).translateToString(), 'gh'); - assert.equal(buffer.lines.get(14).translateToString(), 'ij'); - assert.equal(buffer.lines.get(15).translateToString(), 'kl'); - for (let i = 16; i < 23; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines = [11, 13, 15]; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - }); - }); - describe('viewport filled, no scrollback remaining', () => { - // ybase === 0 doesn't make sense here as scrollback=0 isn't really supported - describe('ybase !== 0', () => { - beforeEach(() => { - optionsService.options.scrollback = 10; - // Add 10 empty rows to start - for (let i = 0; i < 10; i++) { - buffer.lines.splice(0, 0, buffer.getBlankLine(DEFAULT_ATTR_DATA)); - } - buffer.ybase = 10; - }); - describe('&& ydisp === ybase', () => { - it('should trim lines and keep ydisp = ybase', () => { - buffer.ydisp = 10; - buffer.y = 13; - buffer.resize(2, 10); - assert.equal(buffer.ydisp, 10); - assert.equal(buffer.ybase, 10); - assert.equal(buffer.lines.length, 20); - for (let i = 0; i < 7; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - assert.equal(buffer.lines.get(7).translateToString(), 'ab'); - assert.equal(buffer.lines.get(8).translateToString(), 'cd'); - assert.equal(buffer.lines.get(9).translateToString(), 'ef'); - assert.equal(buffer.lines.get(10).translateToString(), 'gh'); - assert.equal(buffer.lines.get(11).translateToString(), 'ij'); - assert.equal(buffer.lines.get(12).translateToString(), 'kl'); - for (let i = 13; i < 20; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines = [8, 10, 12]; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - describe('&& ydisp !== ybase', () => { - it('should trim lines and not change ydisp', () => { - buffer.ydisp = 5; - buffer.y = 13; - buffer.resize(2, 10); - assert.equal(buffer.ydisp, 5); - assert.equal(buffer.ybase, 10); - assert.equal(buffer.lines.length, 20); - for (let i = 0; i < 7; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - assert.equal(buffer.lines.get(7).translateToString(), 'ab'); - assert.equal(buffer.lines.get(8).translateToString(), 'cd'); - assert.equal(buffer.lines.get(9).translateToString(), 'ef'); - assert.equal(buffer.lines.get(10).translateToString(), 'gh'); - assert.equal(buffer.lines.get(11).translateToString(), 'ij'); - assert.equal(buffer.lines.get(12).translateToString(), 'kl'); - for (let i = 13; i < 20; i++) { - assert.equal(buffer.lines.get(i).translateToString(), ' '); - } - const wrappedLines = [8, 10, 12]; - for (let i = 0; i < buffer.lines.length; i++) { - assert.equal(buffer.lines.get(i).isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); - } - }); - }); - }); - }); - }); - }); - }); - - describe('buffer marked to have no scrollback', () => { - it('should always have a scrollback of 0', () => { - // Test size on initialization - buffer = new Buffer(false, new MockOptionsService({ scrollback: 1000 }), bufferService); - buffer.fillViewportRows(); - assert.equal(buffer.lines.maxLength, INIT_ROWS); - // Test size on buffer increase - buffer.resize(INIT_COLS, INIT_ROWS * 2); - assert.equal(buffer.lines.maxLength, INIT_ROWS * 2); - // Test size on buffer decrease - buffer.resize(INIT_COLS, INIT_ROWS / 2); - assert.equal(buffer.lines.maxLength, INIT_ROWS / 2); - }); - }); - - describe('addMarker', () => { - it('should adjust a marker line when the buffer is trimmed', () => { - buffer = new Buffer(true, new MockOptionsService({ scrollback: 0 }), bufferService); - buffer.fillViewportRows(); - const marker = buffer.addMarker(buffer.lines.length - 1); - assert.equal(marker.line, buffer.lines.length - 1); - buffer.lines.onTrimEmitter.fire(1); - assert.equal(marker.line, buffer.lines.length - 2); - }); - it('should dispose of a marker if it is trimmed off the buffer', () => { - buffer = new Buffer(true, new MockOptionsService({ scrollback: 0 }), bufferService); - buffer.fillViewportRows(); - assert.equal(buffer.markers.length, 0); - const marker = buffer.addMarker(0); - assert.equal(marker.isDisposed, false); - assert.equal(buffer.markers.length, 1); - buffer.lines.onTrimEmitter.fire(1); - assert.equal(marker.isDisposed, true); - assert.equal(buffer.markers.length, 0); - }); - }); - - describe ('translateBufferLineToString', () => { - it('should handle selecting a section of ascii text', () => { - const line = new BufferLine(4); - line.setCell(0, CellData.fromCharData([ null, 'a', 1, 'a'.charCodeAt(0)])); - line.setCell(1, CellData.fromCharData([ null, 'b', 1, 'b'.charCodeAt(0)])); - line.setCell(2, CellData.fromCharData([ null, 'c', 1, 'c'.charCodeAt(0)])); - line.setCell(3, CellData.fromCharData([ null, 'd', 1, 'd'.charCodeAt(0)])); - buffer.lines.set(0, line); - - const str = buffer.translateBufferLineToString(0, true, 0, 2); - assert.equal(str, 'ab'); - }); - - it('should handle a cut-off double width character by including it', () => { - const line = new BufferLine(3); - line.setCell(0, CellData.fromCharData([ null, '語', 2, 35486 ])); - line.setCell(1, CellData.fromCharData([ null, '', 0, null])); - line.setCell(2, CellData.fromCharData([ null, 'a', 1, 'a'.charCodeAt(0)])); - buffer.lines.set(0, line); - - const str1 = buffer.translateBufferLineToString(0, true, 0, 1); - assert.equal(str1, '語'); - }); - - it('should handle a zero width character in the middle of the string by not including it', () => { - const line = new BufferLine(3); - line.setCell(0, CellData.fromCharData([ null, '語', 2, '語'.charCodeAt(0) ])); - line.setCell(1, CellData.fromCharData([ null, '', 0, null])); - line.setCell(2, CellData.fromCharData([ null, 'a', 1, 'a'.charCodeAt(0)])); - buffer.lines.set(0, line); - - const str0 = buffer.translateBufferLineToString(0, true, 0, 1); - assert.equal(str0, '語'); - - const str1 = buffer.translateBufferLineToString(0, true, 0, 2); - assert.equal(str1, '語'); - - const str2 = buffer.translateBufferLineToString(0, true, 0, 3); - assert.equal(str2, '語a'); - }); - - it('should handle single width emojis', () => { - const line = new BufferLine(2); - line.setCell(0, CellData.fromCharData([ null, '😁', 1, '😁'.charCodeAt(0) ])); - line.setCell(1, CellData.fromCharData([ null, 'a', 1, 'a'.charCodeAt(0)])); - buffer.lines.set(0, line); - - const str1 = buffer.translateBufferLineToString(0, true, 0, 1); - assert.equal(str1, '😁'); - - const str2 = buffer.translateBufferLineToString(0, true, 0, 2); - assert.equal(str2, '😁a'); - }); - - it('should handle double width emojis', () => { - const line = new BufferLine(2); - line.setCell(0, CellData.fromCharData([ null, '😁', 2, '😁'.charCodeAt(0) ])); - line.setCell(1, CellData.fromCharData([ null, '', 0, null])); - buffer.lines.set(0, line); - - const str1 = buffer.translateBufferLineToString(0, true, 0, 1); - assert.equal(str1, '😁'); - - const str2 = buffer.translateBufferLineToString(0, true, 0, 2); - assert.equal(str2, '😁'); - - const line2 = new BufferLine(3); - line2.setCell(0, CellData.fromCharData([ null, '😁', 2, '😁'.charCodeAt(0) ])); - line2.setCell(1, CellData.fromCharData([ null, '', 0, null])); - line2.setCell(2, CellData.fromCharData([ null, 'a', 1, 'a'.charCodeAt(0)])); - buffer.lines.set(0, line2); - - const str3 = buffer.translateBufferLineToString(0, true, 0, 3); - assert.equal(str3, '😁a'); - }); - }); - describe('stringIndexToBufferIndex', () => { - let terminal: TestTerminal; - - beforeEach(() => { - terminal = new TestTerminal({rows: 5, cols: 10, scrollback: 5}); - }); - - it('multiline ascii', () => { - const input = 'This is ASCII text spanning multiple lines.'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - for (let i = 0; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([(i / terminal.cols) | 0, i % terminal.cols], bufferIndex); - } - }); - - it('combining e\u0301 in a sentence', () => { - const input = 'Sitting in the cafe\u0301 drinking coffee.'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - for (let i = 0; i < 19; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([(i / terminal.cols) | 0, i % terminal.cols], bufferIndex); - } - // string index 18 & 19 point to combining char e\u0301 ---> same buffer Index - assert.deepEqual( - terminal.buffer.stringIndexToBufferIndex(0, 18), - terminal.buffer.stringIndexToBufferIndex(0, 19)); - // after the combining char every string index has an offset of -1 - for (let i = 19; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([((i - 1) / terminal.cols) | 0, (i - 1) % terminal.cols], bufferIndex); - } - }); - - it('multiline combining e\u0301', () => { - const input = 'e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - // every buffer cell index contains 2 string indices - for (let i = 0; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([((i >> 1) / terminal.cols) | 0, (i >> 1) % terminal.cols], bufferIndex); - } - }); - - it('surrogate char in a sentence', () => { - const input = 'The 𝄞 is a clef widely used in modern notation.'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - for (let i = 0; i < 5; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([(i / terminal.cols) | 0, i % terminal.cols], bufferIndex); - } - // string index 4 & 5 point to surrogate char 𝄞 ---> same buffer Index - assert.deepEqual( - terminal.buffer.stringIndexToBufferIndex(0, 4), - terminal.buffer.stringIndexToBufferIndex(0, 5)); - // after the combining char every string index has an offset of -1 - for (let i = 5; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([((i - 1) / terminal.cols) | 0, (i - 1) % terminal.cols], bufferIndex); - } - }); - - it('multiline surrogate char', () => { - const input = '𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - // every buffer cell index contains 2 string indices - for (let i = 0; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([((i >> 1) / terminal.cols) | 0, (i >> 1) % terminal.cols], bufferIndex); - } - }); - - it('surrogate char with combining', () => { - // eye of Ra with acute accent - string length of 3 - const input = '𓂀\u0301 - the eye hiroglyph with an acute accent.'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - // index 0..2 should map to 0 - assert.deepEqual([0, 0], terminal.buffer.stringIndexToBufferIndex(0, 1)); - assert.deepEqual([0, 0], terminal.buffer.stringIndexToBufferIndex(0, 2)); - for (let i = 2; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([((i - 2) / terminal.cols) | 0, (i - 2) % terminal.cols], bufferIndex); - } - }); - - it('multiline surrogate with combining', () => { - const input = '𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - // every buffer cell index contains 3 string indices - for (let i = 0; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([(((i / 3) | 0) / terminal.cols) | 0, ((i / 3) | 0) % terminal.cols], bufferIndex); - } - }); - - it('fullwidth chars', () => { - const input = 'These １２３ are some fat numbers.'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - for (let i = 0; i < 6; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([(i / terminal.cols) | 0, i % terminal.cols], bufferIndex); - } - // string index 6, 7, 8 take 2 cells - assert.deepEqual([0, 8], terminal.buffer.stringIndexToBufferIndex(0, 7)); - assert.deepEqual([1, 0], terminal.buffer.stringIndexToBufferIndex(0, 8)); - // rest of the string has offset of +3 - for (let i = 9; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([((i + 3) / terminal.cols) | 0, (i + 3) % terminal.cols], bufferIndex); - } - }); - - it('multiline fullwidth chars', () => { - const input = '１２３４５６７８９０１２３４５６７８９０'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - for (let i = 9; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); - assert.deepEqual([((i << 1) / terminal.cols) | 0, (i << 1) % terminal.cols], bufferIndex); - } - }); - - it('fullwidth combining with emoji - match emoji cell', () => { - const input = 'Lots of ￥\u0301 make me 😃.'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - const stringIndex = s.match(/😃/).index; - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, stringIndex); - assert(terminal.buffer.lines.get(bufferIndex[0]).loadCell(bufferIndex[1], new CellData()).getChars(), '😃'); - }); - - it('multiline fullwidth chars with offset 1 (currently tests for broken behavior)', () => { - const input = 'a１２３４５６７８９０１２３４５６７８９０'; - // the 'a' at the beginning moves all fullwidth chars one to the right - // now the end of the line contains a dangling empty cell since - // the next fullwidth char has to wrap early - // the dangling last cell is wrongly added in the string - // --> fixable after resolving #1685 - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - for (let i = 10; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i, true); - const j = (i - 0) << 1; - assert.deepEqual([(j / terminal.cols) | 0, j % terminal.cols], bufferIndex); - } - }); - - it('test fully wrapped buffer up to last char', () => { - const input = Array(6).join('1234567890'); - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - for (let i = 0; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i, true); - assert.equal(input[i], terminal.buffer.lines.get(bufferIndex[0]).loadCell(bufferIndex[1], new CellData()).getChars()); - } - }); - - it('test fully wrapped buffer up to last char with full width odd', () => { - const input = 'a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301' - + 'a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(input, s); - for (let i = 0; i < input.length; ++i) { - const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i, true); - assert.equal( - (!(i % 3)) - ? input[i] - : (i % 3 === 1) - ? input.substr(i, 2) - : input.substr(i - 1, 2), - terminal.buffer.lines.get(bufferIndex[0]).loadCell(bufferIndex[1], new CellData()).getChars()); - } - }); - - it('should handle \t in lines correctly', () => { - const input = '\thttps://google.de'; - terminal.writeSync(input); - const s = terminal.buffer.iterator(true).next().content; - assert.equal(s, Array(optionsService.options.tabStopWidth + 1).join(' ') + 'https://google.de'); - }); - }); - describe('BufferStringIterator', function(): void { - it('iterator does not overflow buffer limits', function(): void { - const terminal = new TestTerminal({rows: 5, cols: 10, scrollback: 5}); - const data = [ - 'aaaaaaaaaa', - 'aaaaaaaaa\n', - 'aaaaaaaaaa', - 'aaaaaaaaa\n', - 'aaaaaaaaaa', - 'aaaaaaaaaa', - 'aaaaaaaaaa', - 'aaaaaaaaa\n', - 'aaaaaaaaaa', - 'aaaaaaaaaa' - ]; - terminal.writeSync(data.join('')); - // brute force test with insane values - expect(() => { - for (let overscan = 0; overscan < 20; ++overscan) { - for (let start = -10; start < 20; ++start) { - for (let end = -10; end < 20; ++end) { - const it = terminal.buffer.iterator(false, start, end, overscan, overscan); - while (it.hasNext()) { - it.next(); - } - } - } - } - }).to.not.throw(); - }); - }); -}); diff --git a/src/BufferSet.test.ts b/src/BufferSet.test.ts index 44c23d79..9dab0f7a 100644 --- a/src/BufferSet.test.ts +++ b/src/BufferSet.test.ts @@ -6,7 +6,7 @@ import { assert } from 'chai'; import { BufferSet } from './BufferSet'; import { Buffer } from './common/buffer/Buffer'; -import { MockOptionsService, MockBufferService } from './TestUtils.test'; +import { MockOptionsService, MockBufferService } from 'common/TestUtils.test'; describe('BufferSet', () => { let bufferSet: BufferSet; diff --git a/src/SelectionManager.test.ts b/src/SelectionManager.test.ts index 57397faa..f81cdcbe 100644 --- a/src/SelectionManager.test.ts +++ b/src/SelectionManager.test.ts @@ -10,7 +10,8 @@ import { BufferSet } from './BufferSet'; import { ITerminal } from './Types'; import { IBuffer } from 'common/buffer/Types'; import { IBufferLine } from 'common/Types'; -import { MockTerminal, MockCharSizeService, MockOptionsService, MockBufferService } from './TestUtils.test'; +import { MockTerminal, MockCharSizeService } from './TestUtils.test'; +import { MockOptionsService, MockBufferService } from 'common/TestUtils.test'; import { BufferLine, CellData } from 'common/buffer/BufferLine'; import { IBufferService } from 'common/services/Services'; diff --git a/src/SelectionModel.test.ts b/src/SelectionModel.test.ts index 28420a78..479e20d3 100644 --- a/src/SelectionModel.test.ts +++ b/src/SelectionModel.test.ts @@ -7,7 +7,8 @@ import { assert } from 'chai'; import { ITerminal } from './Types'; import { SelectionModel } from './SelectionModel'; import { BufferSet } from './BufferSet'; -import { MockTerminal, MockOptionsService, MockBufferService } from './TestUtils.test'; +import { MockTerminal } from './TestUtils.test'; +import { MockOptionsService, MockBufferService } from 'common/TestUtils.test'; import { IBufferService } from 'common/services/Services'; class TestSelectionModel extends SelectionModel { diff --git a/src/TestUtils.test.ts b/src/TestUtils.test.ts index f9f4f037..fa48b4b0 100644 --- a/src/TestUtils.test.ts +++ b/src/TestUtils.test.ts @@ -4,7 +4,7 @@ */ import { IRenderer, IRenderDimensions } from './renderer/Types'; -import { IInputHandlingTerminal, IViewport, ICompositionHelper, ITerminal, IBufferSet, IBrowser, ISelectionManager, ITerminalOptions as IInternalTerminalOptions, ILinkifier, IMouseHelper, ILinkMatcherOptions, CharacterJoinerHandler } from './Types'; +import { IInputHandlingTerminal, IViewport, ICompositionHelper, ITerminal, IBufferSet, IBrowser, ISelectionManager, ITerminalOptions, ILinkifier, IMouseHelper, ILinkMatcherOptions, CharacterJoinerHandler } from './Types'; import { IBuffer, IBufferStringIterator } from 'common/buffer/Types'; import { IBufferLine, ICellData, IAttributeData, ICircularList, XtermListener } from 'common/Types'; import { Buffer } from './common/buffer/Buffer'; @@ -13,10 +13,8 @@ import { IDisposable, IMarker, IEvent, ISelectionPosition } from 'xterm'; import { Terminal } from './Terminal'; import { AttributeData } from 'common/buffer/BufferLine'; import { IColorManager, IColorSet } from 'browser/Types'; -import { IOptionsService, IPartialTerminalOptions, ITerminalOptions, IBufferService } from 'common/services/Services'; +import { IOptionsService } from 'common/services/Services'; import { ICharSizeService } from 'browser/services/Services'; -import { DEFAULT_OPTIONS } from 'common/services/OptionsService'; -import { clone } from 'common/Clone'; export class TestTerminal extends Terminal { writeSync(data: string): void { @@ -124,7 +122,7 @@ export class MockTerminal implements ITerminal { renderer: IRenderer; linkifier: ILinkifier; isFocused: boolean; - options: IInternalTerminalOptions = {}; + options: ITerminalOptions = {}; element: HTMLElement; screenElement: HTMLElement; rowContainer: HTMLElement; @@ -185,7 +183,7 @@ export class MockTerminal implements ITerminal { export class MockInputHandlingTerminal implements IInputHandlingTerminal { element: HTMLElement; - options: IInternalTerminalOptions = {}; + options: ITerminalOptions = {}; cols: number; rows: number; charset: { [key: string]: string; }; @@ -437,29 +435,3 @@ export class MockCharSizeService implements ICharSizeService { constructor(public width: number, public height: number) {} measure(): void {} } - -export class MockOptionsService implements IOptionsService { - options: ITerminalOptions = clone(DEFAULT_OPTIONS); - onOptionChange: IEvent; - constructor(testOptions: IPartialTerminalOptions) { - Object.keys(testOptions).forEach(key => this.options[key] = (testOptions)[key]); - } - setOption(key: string, value: T): void { - throw new Error('Method not implemented.'); - } - getOption(key: string): T { - throw new Error('Method not implemented.'); - } -} - -export class MockBufferService implements IBufferService { - constructor( - public cols: number, - public rows: number - ) {} - resize(cols: number, rows: number): void { - this.cols = cols; - this.rows = rows; - } - -} diff --git a/src/common/TestUtils.test.ts b/src/common/TestUtils.test.ts new file mode 100644 index 00000000..0a0cb6a4 --- /dev/null +++ b/src/common/TestUtils.test.ts @@ -0,0 +1,34 @@ +/** + * Copyright (c) 2019 The xterm.js authors. All rights reserved. + * @license MIT + */ + +import { IBufferService, IOptionsService, ITerminalOptions, IPartialTerminalOptions } from 'common/services/Services'; +import { IEvent, EventEmitter2 } from 'common/EventEmitter2'; +import { clone } from 'common/Clone'; +import { DEFAULT_OPTIONS } from 'common/services/OptionsService'; + +export class MockBufferService implements IBufferService { + constructor( + public cols: number, + public rows: number + ) {} + resize(cols: number, rows: number): void { + this.cols = cols; + this.rows = rows; + } +} + +export class MockOptionsService implements IOptionsService { + options: ITerminalOptions = clone(DEFAULT_OPTIONS); + onOptionChange: IEvent = new EventEmitter2().event; + constructor(testOptions: IPartialTerminalOptions) { + Object.keys(testOptions).forEach(key => this.options[key] = (testOptions)[key]); + } + setOption(key: string, value: T): void { + throw new Error('Method not implemented.'); + } + getOption(key: string): T { + throw new Error('Method not implemented.'); + } +} diff --git a/src/common/buffer/Buffer.test.ts b/src/common/buffer/Buffer.test.ts new file mode 100644 index 00000000..01516b3c --- /dev/null +++ b/src/common/buffer/Buffer.test.ts @@ -0,0 +1,1398 @@ +/** + * Copyright (c) 2017 The xterm.js authors. All rights reserved. + * @license MIT + */ + +import { assert } from 'chai'; +import { Buffer } from 'common/buffer/Buffer'; +import { CircularList } from 'common/CircularList'; +import { MockOptionsService, MockBufferService } from 'common/TestUtils.test'; +import { BufferLine, CellData, DEFAULT_ATTR_DATA } from 'common/buffer/BufferLine'; + +const INIT_COLS = 80; +const INIT_ROWS = 24; +const INIT_SCROLLBACK = 1000; + +describe('Buffer', () => { + let optionsService: MockOptionsService; + let bufferService: MockBufferService; + let buffer: Buffer; + + beforeEach(() => { + optionsService = new MockOptionsService({ scrollback: INIT_SCROLLBACK }); + bufferService = new MockBufferService(INIT_COLS, INIT_ROWS); + buffer = new Buffer(true, optionsService, bufferService); + }); + + describe('constructor', () => { + it('should create a CircularList with max length equal to rows + scrollback, for its lines', () => { + assert.instanceOf(buffer.lines, CircularList); + assert.equal(buffer.lines.maxLength, bufferService.rows + INIT_SCROLLBACK); + }); + it('should set the Buffer\'s scrollBottom value equal to the terminal\'s rows -1', () => { + assert.equal(buffer.scrollBottom, bufferService.rows - 1); + }); + }); + + describe('fillViewportRows', () => { + it('should fill the buffer with blank lines based on the size of the viewport', () => { + const blankLineChar = buffer.getBlankLine(DEFAULT_ATTR_DATA).loadCell(0, new CellData()).getAsCharData(); + buffer.fillViewportRows(); + assert.equal(buffer.lines.length, INIT_ROWS); + for (let y = 0; y < INIT_ROWS; y++) { + assert.equal(buffer.lines.get(y)!.length, INIT_COLS); + for (let x = 0; x < INIT_COLS; x++) { + assert.deepEqual(buffer.lines.get(y)!.loadCell(x, new CellData()).getAsCharData(), blankLineChar); + } + } + }); + }); + + describe('getWrappedRangeForLine', () => { + describe('non-wrapped', () => { + it('should return a single row for the first row', () => { + buffer.fillViewportRows(); + assert.deepEqual(buffer.getWrappedRangeForLine(0), { first: 0, last: 0 }); + }); + it('should return a single row for a middle row', () => { + buffer.fillViewportRows(); + assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 12, last: 12 }); + }); + it('should return a single row for the last row', () => { + buffer.fillViewportRows(); + assert.deepEqual(buffer.getWrappedRangeForLine(buffer.lines.length - 1), { first: 23, last: 23 }); + }); + }); + describe('wrapped', () => { + it('should return a range for the first row', () => { + buffer.fillViewportRows(); + buffer.lines.get(1)!.isWrapped = true; + assert.deepEqual(buffer.getWrappedRangeForLine(0), { first: 0, last: 1 }); + }); + it('should return a range for a middle row wrapping upwards', () => { + buffer.fillViewportRows(); + buffer.lines.get(12)!.isWrapped = true; + assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 11, last: 12 }); + }); + it('should return a range for a middle row wrapping downwards', () => { + buffer.fillViewportRows(); + buffer.lines.get(13)!.isWrapped = true; + assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 12, last: 13 }); + }); + it('should return a range for a middle row wrapping both ways', () => { + buffer.fillViewportRows(); + buffer.lines.get(11)!.isWrapped = true; + buffer.lines.get(12)!.isWrapped = true; + buffer.lines.get(13)!.isWrapped = true; + buffer.lines.get(14)!.isWrapped = true; + assert.deepEqual(buffer.getWrappedRangeForLine(12), { first: 10, last: 14 }); + }); + it('should return a range for the last row', () => { + buffer.fillViewportRows(); + buffer.lines.get(23)!.isWrapped = true; + assert.deepEqual(buffer.getWrappedRangeForLine(buffer.lines.length - 1), { first: 22, last: 23 }); + }); + it('should return a range for a row that wraps upward to first row', () => { + buffer.fillViewportRows(); + buffer.lines.get(1)!.isWrapped = true; + assert.deepEqual(buffer.getWrappedRangeForLine(1), { first: 0, last: 1 }); + }); + it('should return a range for a row that wraps downward to last row', () => { + buffer.fillViewportRows(); + buffer.lines.get(buffer.lines.length - 1)!.isWrapped = true; + assert.deepEqual(buffer.getWrappedRangeForLine(buffer.lines.length - 2), { first: 22, last: 23 }); + }); + }); + }); + + describe('resize', () => { + describe('column size is reduced', () => { + it('should trim the data in the buffer', () => { + buffer.fillViewportRows(); + buffer.resize(INIT_COLS / 2, INIT_ROWS); + assert.equal(buffer.lines.length, INIT_ROWS); + for (let i = 0; i < INIT_ROWS; i++) { + assert.equal(buffer.lines.get(i)!.length, INIT_COLS / 2); + } + }); + }); + + describe('column size is increased', () => { + it('should add pad columns', () => { + buffer.fillViewportRows(); + buffer.resize(INIT_COLS + 10, INIT_ROWS); + assert.equal(buffer.lines.length, INIT_ROWS); + for (let i = 0; i < INIT_ROWS; i++) { + assert.equal(buffer.lines.get(i)!.length, INIT_COLS + 10); + } + }); + }); + + describe('row size reduced', () => { + it('should trim blank lines from the end', () => { + buffer.fillViewportRows(); + buffer.resize(INIT_COLS, INIT_ROWS - 10); + assert.equal(buffer.lines.length, INIT_ROWS - 10); + }); + + it('should move the viewport down when it\'s at the end', () => { + buffer.fillViewportRows(); + // Set cursor y to have 5 blank lines below it + buffer.y = INIT_ROWS - 5 - 1; + buffer.resize(INIT_COLS, INIT_ROWS - 10); + // Trim 5 rows + assert.equal(buffer.lines.length, INIT_ROWS - 5); + // Shift the viewport down 5 rows + assert.equal(buffer.ydisp, 5); + assert.equal(buffer.ybase, 5); + }); + + describe('no scrollback', () => { + it('should trim from the top of the buffer when the cursor reaches the bottom', () => { + buffer = new Buffer(true, new MockOptionsService({ scrollback: 0 }), bufferService); + assert.equal(buffer.lines.maxLength, INIT_ROWS); + buffer.y = INIT_ROWS - 1; + buffer.fillViewportRows(); + let chData = buffer.lines.get(5)!.loadCell(0, new CellData()).getAsCharData(); + chData[1] = 'a'; + buffer.lines.get(5)!.setCell(0, CellData.fromCharData(chData)); + chData = buffer.lines.get(INIT_ROWS - 1)!.loadCell(0, new CellData()).getAsCharData(); + chData[1] = 'b'; + buffer.lines.get(INIT_ROWS - 1)!.setCell(0, CellData.fromCharData(chData)); + buffer.resize(INIT_COLS, INIT_ROWS - 5); + assert.equal(buffer.lines.get(0)!.loadCell(0, new CellData()).getAsCharData()[1], 'a'); + assert.equal(buffer.lines.get(INIT_ROWS - 1 - 5)!.loadCell(0, new CellData()).getAsCharData()[1], 'b'); + }); + }); + }); + + describe('row size increased', () => { + describe('empty buffer', () => { + it('should add blank lines to end', () => { + buffer.fillViewportRows(); + assert.equal(buffer.ydisp, 0); + buffer.resize(INIT_COLS, INIT_ROWS + 10); + assert.equal(buffer.ydisp, 0); + assert.equal(buffer.lines.length, INIT_ROWS + 10); + }); + }); + + describe('filled buffer', () => { + it('should show more of the buffer above', () => { + buffer.fillViewportRows(); + // Create 10 extra blank lines + for (let i = 0; i < 10; i++) { + buffer.lines.push(buffer.getBlankLine(DEFAULT_ATTR_DATA)); + } + // Set cursor to the bottom of the buffer + buffer.y = INIT_ROWS - 1; + // Scroll down 10 lines + buffer.ybase = 10; + buffer.ydisp = 10; + assert.equal(buffer.lines.length, INIT_ROWS + 10); + buffer.resize(INIT_COLS, INIT_ROWS + 5); + // Should be should 5 more lines + assert.equal(buffer.ydisp, 5); + assert.equal(buffer.ybase, 5); + // Should not trim the buffer + assert.equal(buffer.lines.length, INIT_ROWS + 10); + }); + + it('should show more of the buffer below when the viewport is at the top of the buffer', () => { + buffer.fillViewportRows(); + // Create 10 extra blank lines + for (let i = 0; i < 10; i++) { + buffer.lines.push(buffer.getBlankLine(DEFAULT_ATTR_DATA)); + } + // Set cursor to the bottom of the buffer + buffer.y = INIT_ROWS - 1; + // Scroll down 10 lines + buffer.ybase = 10; + buffer.ydisp = 0; + assert.equal(buffer.lines.length, INIT_ROWS + 10); + buffer.resize(INIT_COLS, INIT_ROWS + 5); + // The viewport should remain at the top + assert.equal(buffer.ydisp, 0); + // The buffer ybase should move up 5 lines + assert.equal(buffer.ybase, 5); + // Should not trim the buffer + assert.equal(buffer.lines.length, INIT_ROWS + 10); + }); + }); + }); + + describe('row and column increased', () => { + it('should resize properly', () => { + buffer.fillViewportRows(); + buffer.resize(INIT_COLS + 5, INIT_ROWS + 5); + assert.equal(buffer.lines.length, INIT_ROWS + 5); + for (let i = 0; i < INIT_ROWS + 5; i++) { + assert.equal(buffer.lines.get(i)!.length, INIT_COLS + 5); + } + }); + }); + + describe('reflow', () => { + it('should not wrap empty lines', () => { + buffer.fillViewportRows(); + assert.equal(buffer.lines.length, INIT_ROWS); + buffer.resize(INIT_COLS - 5, INIT_ROWS); + assert.equal(buffer.lines.length, INIT_ROWS); + }); + it('should shrink row length', () => { + buffer.fillViewportRows(); + buffer.resize(5, 10); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.length, 5); + assert.equal(buffer.lines.get(1)!.length, 5); + assert.equal(buffer.lines.get(2)!.length, 5); + assert.equal(buffer.lines.get(3)!.length, 5); + assert.equal(buffer.lines.get(4)!.length, 5); + assert.equal(buffer.lines.get(5)!.length, 5); + assert.equal(buffer.lines.get(6)!.length, 5); + assert.equal(buffer.lines.get(7)!.length, 5); + assert.equal(buffer.lines.get(8)!.length, 5); + assert.equal(buffer.lines.get(9)!.length, 5); + }); + it('should wrap and unwrap lines', () => { + buffer.fillViewportRows(); + buffer.resize(5, 10); + const firstLine = buffer.lines.get(0)!; + for (let i = 0; i < 5; i++) { + const code = 'a'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + firstLine.set(i, [0, char, 1, code]); + } + buffer.y = 1; + assert.equal(buffer.lines.get(0)!.length, 5); + assert.equal(buffer.lines.get(0)!.translateToString(), 'abcde'); + buffer.resize(1, 10); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(), 'a'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'b'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'c'); + assert.equal(buffer.lines.get(3)!.translateToString(), 'd'); + assert.equal(buffer.lines.get(4)!.translateToString(), 'e'); + assert.equal(buffer.lines.get(5)!.translateToString(), ' '); + assert.equal(buffer.lines.get(6)!.translateToString(), ' '); + assert.equal(buffer.lines.get(7)!.translateToString(), ' '); + assert.equal(buffer.lines.get(8)!.translateToString(), ' '); + assert.equal(buffer.lines.get(9)!.translateToString(), ' '); + buffer.resize(5, 10); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(), 'abcde'); + assert.equal(buffer.lines.get(1)!.translateToString(), ' '); + assert.equal(buffer.lines.get(2)!.translateToString(), ' '); + assert.equal(buffer.lines.get(3)!.translateToString(), ' '); + assert.equal(buffer.lines.get(4)!.translateToString(), ' '); + assert.equal(buffer.lines.get(5)!.translateToString(), ' '); + assert.equal(buffer.lines.get(6)!.translateToString(), ' '); + assert.equal(buffer.lines.get(7)!.translateToString(), ' '); + assert.equal(buffer.lines.get(8)!.translateToString(), ' '); + assert.equal(buffer.lines.get(9)!.translateToString(), ' '); + }); + it('should discard parts of wrapped lines that go out of the scrollback', () => { + buffer.fillViewportRows(); + optionsService.options.scrollback = 1; + buffer.resize(10, 5); + const lastLine = buffer.lines.get(3)!; + for (let i = 0; i < 10; i++) { + const code = 'a'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + lastLine.set(i, [0, char, 1, code]); + } + assert.equal(buffer.lines.length, 5); + buffer.y = 4; + buffer.resize(2, 5); + assert.equal(buffer.y, 4); + assert.equal(buffer.ybase, 1); + assert.equal(buffer.lines.length, 6); + assert.equal(buffer.lines.get(0)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'cd'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'ef'); + assert.equal(buffer.lines.get(3)!.translateToString(), 'gh'); + assert.equal(buffer.lines.get(4)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(5)!.translateToString(), ' '); + buffer.resize(1, 5); + assert.equal(buffer.y, 4); + assert.equal(buffer.ybase, 1); + assert.equal(buffer.lines.length, 6); + assert.equal(buffer.lines.get(0)!.translateToString(), 'f'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'g'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'h'); + assert.equal(buffer.lines.get(3)!.translateToString(), 'i'); + assert.equal(buffer.lines.get(4)!.translateToString(), 'j'); + assert.equal(buffer.lines.get(5)!.translateToString(), ' '); + buffer.resize(10, 5); + assert.equal(buffer.y, 1); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 5); + assert.equal(buffer.lines.get(0)!.translateToString(), 'fghij '); + assert.equal(buffer.lines.get(1)!.translateToString(), ' '); + assert.equal(buffer.lines.get(2)!.translateToString(), ' '); + assert.equal(buffer.lines.get(3)!.translateToString(), ' '); + assert.equal(buffer.lines.get(4)!.translateToString(), ' '); + }); + it('should remove the correct amount of rows when reflowing larger', () => { + // This is a regression test to ensure that successive wrapped lines that are getting + // 3+ lines removed on a reflow actually remove the right lines + buffer.fillViewportRows(); + buffer.resize(10, 10); + buffer.y = 2; + const firstLine = buffer.lines.get(0)!; + const secondLine = buffer.lines.get(1)!; + for (let i = 0; i < 10; i++) { + const code = 'a'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + firstLine.set(i, [0, char, 1, code]); + } + for (let i = 0; i < 10; i++) { + const code = '0'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + secondLine.set(i, [0, char, 1, code]); + } + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(), 'abcdefghij'); + assert.equal(buffer.lines.get(1)!.translateToString(), '0123456789'); + for (let i = 2; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + buffer.resize(2, 10); + assert.equal(buffer.ybase, 1); + assert.equal(buffer.lines.length, 11); + assert.equal(buffer.lines.get(0)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'cd'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'ef'); + assert.equal(buffer.lines.get(3)!.translateToString(), 'gh'); + assert.equal(buffer.lines.get(4)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(5)!.translateToString(), '01'); + assert.equal(buffer.lines.get(6)!.translateToString(), '23'); + assert.equal(buffer.lines.get(7)!.translateToString(), '45'); + assert.equal(buffer.lines.get(8)!.translateToString(), '67'); + assert.equal(buffer.lines.get(9)!.translateToString(), '89'); + assert.equal(buffer.lines.get(10)!.translateToString(), ' '); + buffer.resize(10, 10); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(), 'abcdefghij'); + assert.equal(buffer.lines.get(1)!.translateToString(), '0123456789'); + for (let i = 2; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + }); + it('should transfer combined char data over to reflowed lines', () => { + buffer.fillViewportRows(); + buffer.resize(4, 3); + buffer.y = 2; + const firstLine = buffer.lines.get(0)!; + firstLine.set(0, [ 0, 'a', 1, 'a'.charCodeAt(0) ]); + firstLine.set(1, [ 0, 'b', 1, 'b'.charCodeAt(0) ]); + firstLine.set(2, [ 0, 'c', 1, 'c'.charCodeAt(0) ]); + firstLine.set(3, [ 0, '😁', 1, '😁'.charCodeAt(0) ]); + assert.equal(buffer.lines.length, 3); + assert.equal(buffer.lines.get(0)!.translateToString(), 'abc😁'); + assert.equal(buffer.lines.get(1)!.translateToString(), ' '); + buffer.resize(2, 3); + assert.equal(buffer.lines.get(0)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'c😁'); + }); + it('should adjust markers when reflowing', () => { + buffer.fillViewportRows(); + buffer.resize(10, 16); + for (let i = 0; i < 10; i++) { + const code = 'a'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + buffer.lines.get(0)!.set(i, [0, char, 1, code]); + } + for (let i = 0; i < 10; i++) { + const code = '0'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + buffer.lines.get(1)!.set(i, [0, char, 1, code]); + } + for (let i = 0; i < 10; i++) { + const code = 'k'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + buffer.lines.get(2)!.set(i, [0, char, 1, code]); + } + buffer.y = 3; + // Buffer: + // abcdefghij + // 0123456789 + // abcdefghij + const firstMarker = buffer.addMarker(0); + const secondMarker = buffer.addMarker(1); + const thirdMarker = buffer.addMarker(2); + assert.equal(buffer.lines.get(0)!.translateToString(), 'abcdefghij'); + assert.equal(buffer.lines.get(1)!.translateToString(), '0123456789'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'klmnopqrst'); + assert.equal(firstMarker.line, 0); + assert.equal(secondMarker.line, 1); + assert.equal(thirdMarker.line, 2); + buffer.resize(2, 16); + assert.equal(buffer.lines.get(0)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'cd'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'ef'); + assert.equal(buffer.lines.get(3)!.translateToString(), 'gh'); + assert.equal(buffer.lines.get(4)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(5)!.translateToString(), '01'); + assert.equal(buffer.lines.get(6)!.translateToString(), '23'); + assert.equal(buffer.lines.get(7)!.translateToString(), '45'); + assert.equal(buffer.lines.get(8)!.translateToString(), '67'); + assert.equal(buffer.lines.get(9)!.translateToString(), '89'); + assert.equal(buffer.lines.get(10)!.translateToString(), 'kl'); + assert.equal(buffer.lines.get(11)!.translateToString(), 'mn'); + assert.equal(buffer.lines.get(12)!.translateToString(), 'op'); + assert.equal(buffer.lines.get(13)!.translateToString(), 'qr'); + assert.equal(buffer.lines.get(14)!.translateToString(), 'st'); + assert.equal(firstMarker.line, 0, 'first marker should remain unchanged'); + assert.equal(secondMarker.line, 5, 'second marker should be shifted since the first line wrapped'); + assert.equal(thirdMarker.line, 10, 'third marker should be shifted since the first and second lines wrapped'); + buffer.resize(10, 16); + assert.equal(buffer.lines.get(0)!.translateToString(), 'abcdefghij'); + assert.equal(buffer.lines.get(1)!.translateToString(), '0123456789'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'klmnopqrst'); + assert.equal(firstMarker.line, 0, 'first marker should remain unchanged'); + assert.equal(secondMarker.line, 1, 'second marker should be restored to it\'s original line'); + assert.equal(thirdMarker.line, 2, 'third marker should be restored to it\'s original line'); + assert.equal(firstMarker.isDisposed, false); + assert.equal(secondMarker.isDisposed, false); + assert.equal(thirdMarker.isDisposed, false); + }); + it('should dispose markers whose rows are trimmed during a reflow', () => { + buffer.fillViewportRows(); + optionsService.options.scrollback = 1; + buffer.resize(10, 11); + for (let i = 0; i < 10; i++) { + const code = 'a'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + buffer.lines.get(0)!.set(i, [0, char, 1, code]); + } + for (let i = 0; i < 10; i++) { + const code = '0'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + buffer.lines.get(1)!.set(i, [0, char, 1, code]); + } + for (let i = 0; i < 10; i++) { + const code = 'k'.charCodeAt(0) + i; + const char = String.fromCharCode(code); + buffer.lines.get(2)!.set(i, [0, char, 1, code]); + } + buffer.y = 10; + // Buffer: + // abcdefghij + // 0123456789 + // abcdefghij + const firstMarker = buffer.addMarker(0); + const secondMarker = buffer.addMarker(1); + const thirdMarker = buffer.addMarker(2); + buffer.y = 3; + assert.equal(buffer.lines.get(0)!.translateToString(), 'abcdefghij'); + assert.equal(buffer.lines.get(1)!.translateToString(), '0123456789'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'klmnopqrst'); + assert.equal(firstMarker.line, 0); + assert.equal(secondMarker.line, 1); + assert.equal(thirdMarker.line, 2); + buffer.resize(2, 11); + assert.equal(buffer.lines.get(0)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(1)!.translateToString(), '01'); + assert.equal(buffer.lines.get(2)!.translateToString(), '23'); + assert.equal(buffer.lines.get(3)!.translateToString(), '45'); + assert.equal(buffer.lines.get(4)!.translateToString(), '67'); + assert.equal(buffer.lines.get(5)!.translateToString(), '89'); + assert.equal(buffer.lines.get(6)!.translateToString(), 'kl'); + assert.equal(buffer.lines.get(7)!.translateToString(), 'mn'); + assert.equal(buffer.lines.get(8)!.translateToString(), 'op'); + assert.equal(buffer.lines.get(9)!.translateToString(), 'qr'); + assert.equal(buffer.lines.get(10)!.translateToString(), 'st'); + assert.equal(secondMarker.line, 1, 'second marker should remain the same as it was shifted 4 and trimmed 4'); + assert.equal(thirdMarker.line, 6, 'third marker should be shifted since the first and second lines wrapped'); + assert.equal(firstMarker.isDisposed, true, 'first marker was trimmed'); + assert.equal(secondMarker.isDisposed, false); + assert.equal(thirdMarker.isDisposed, false); + buffer.resize(10, 11); + assert.equal(buffer.lines.get(0)!.translateToString(), 'ij '); + assert.equal(buffer.lines.get(1)!.translateToString(), '0123456789'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'klmnopqrst'); + assert.equal(secondMarker.line, 1, 'second marker should be restored'); + assert.equal(thirdMarker.line, 2, 'third marker should be restored'); + }); + it('should correctly reflow wrapped lines that end in 0 space (via tab char)', () => { + buffer.fillViewportRows(); + buffer.resize(4, 10); + buffer.y = 2; + buffer.lines.get(0)!.set(0, [0, 'a', 1, 'a'.charCodeAt(0)]); + buffer.lines.get(0)!.set(1, [0, 'b', 1, 'b'.charCodeAt(0)]); + buffer.lines.get(1)!.set(0, [0, 'c', 1, 'c'.charCodeAt(0)]); + buffer.lines.get(1)!.set(1, [0, 'd', 1, 'd'.charCodeAt(0)]); + buffer.lines.get(1)!.isWrapped = true; + // Buffer: + // "ab " (wrapped) + // "cd" + buffer.resize(5, 10); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), 'ab c'); + assert.equal(buffer.lines.get(1)!.translateToString(false), 'd '); + buffer.resize(6, 10); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), 'ab cd'); + assert.equal(buffer.lines.get(1)!.translateToString(false), ' '); + }); + it('should wrap wide characters correctly when reflowing larger', () => { + buffer.fillViewportRows(); + buffer.resize(12, 10); + buffer.y = 2; + for (let i = 0; i < 12; i += 4) { + buffer.lines.get(0)!.set(i, [0, '汉', 2, '汉'.charCodeAt(0)]); + buffer.lines.get(1)!.set(i, [0, '汉', 2, '汉'.charCodeAt(0)]); + } + for (let i = 2; i < 12; i += 4) { + buffer.lines.get(0)!.set(i, [0, '语', 2, '语'.charCodeAt(0)]); + buffer.lines.get(1)!.set(i, [0, '语', 2, '语'.charCodeAt(0)]); + } + for (let i = 1; i < 12; i += 2) { + buffer.lines.get(0)!.set(i, [0, '', 0, 0]); + buffer.lines.get(1)!.set(i, [0, '', 0, 0]); + } + buffer.lines.get(1)!.isWrapped = true; + // Buffer: + // 汉语汉语汉语 (wrapped) + // 汉语汉语汉语 + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉语汉语'); + assert.equal(buffer.lines.get(1)!.translateToString(true), '汉语汉语汉语'); + buffer.resize(13, 10); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉语汉语'); + assert.equal(buffer.lines.get(0)!.translateToString(false), '汉语汉语汉语 '); + assert.equal(buffer.lines.get(1)!.translateToString(true), '汉语汉语汉语'); + assert.equal(buffer.lines.get(1)!.translateToString(false), '汉语汉语汉语 '); + buffer.resize(14, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉语汉语汉'); + assert.equal(buffer.lines.get(0)!.translateToString(false), '汉语汉语汉语汉'); + assert.equal(buffer.lines.get(1)!.translateToString(true), '语汉语汉语'); + assert.equal(buffer.lines.get(1)!.translateToString(false), '语汉语汉语 '); + }); + it('should correctly reflow wrapped lines that end in 0 space (via tab char)', () => { + buffer.fillViewportRows(); + buffer.resize(4, 10); + buffer.y = 2; + buffer.lines.get(0)!.set(0, [0, 'a', 1, 'a'.charCodeAt(0)]); + buffer.lines.get(0)!.set(1, [0, 'b', 1, 'b'.charCodeAt(0)]); + buffer.lines.get(1)!.set(0, [0, 'c', 1, 'c'.charCodeAt(0)]); + buffer.lines.get(1)!.set(1, [0, 'd', 1, 'd'.charCodeAt(0)]); + buffer.lines.get(1)!.isWrapped = true; + // Buffer: + // "ab " (wrapped) + // "cd" + buffer.resize(3, 10); + assert.equal(buffer.y, 2); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(false), 'ab '); + assert.equal(buffer.lines.get(1)!.translateToString(false), ' cd'); + buffer.resize(2, 10); + assert.equal(buffer.y, 3); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(false), 'ab'); + assert.equal(buffer.lines.get(1)!.translateToString(false), ' '); + assert.equal(buffer.lines.get(2)!.translateToString(false), 'cd'); + }); + it('should wrap wide characters correctly when reflowing smaller', () => { + buffer.fillViewportRows(); + buffer.resize(12, 10); + buffer.y = 2; + for (let i = 0; i < 12; i += 4) { + buffer.lines.get(0)!.set(i, [0, '汉', 2, '汉'.charCodeAt(0)]); + buffer.lines.get(1)!.set(i, [0, '汉', 2, '汉'.charCodeAt(0)]); + } + for (let i = 2; i < 12; i += 4) { + buffer.lines.get(0)!.set(i, [0, '语', 2, '语'.charCodeAt(0)]); + buffer.lines.get(1)!.set(i, [0, '语', 2, '语'.charCodeAt(0)]); + } + for (let i = 1; i < 12; i += 2) { + buffer.lines.get(0)!.set(i, [0, '', 0, 0]); + buffer.lines.get(1)!.set(i, [0, '', 0, 0]); + } + buffer.lines.get(1)!.isWrapped = true; + // Buffer: + // 汉语汉语汉语 (wrapped) + // 汉语汉语汉语 + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉语汉语'); + assert.equal(buffer.lines.get(1)!.translateToString(true), '汉语汉语汉语'); + buffer.resize(11, 10); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉语汉'); + assert.equal(buffer.lines.get(1)!.translateToString(true), '语汉语汉语'); + assert.equal(buffer.lines.get(2)!.translateToString(true), '汉语'); + buffer.resize(10, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉语汉'); + assert.equal(buffer.lines.get(1)!.translateToString(true), '语汉语汉语'); + assert.equal(buffer.lines.get(2)!.translateToString(true), '汉语'); + buffer.resize(9, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉语'); + assert.equal(buffer.lines.get(1)!.translateToString(true), '汉语汉语'); + assert.equal(buffer.lines.get(2)!.translateToString(true), '汉语汉语'); + buffer.resize(8, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉语'); + assert.equal(buffer.lines.get(1)!.translateToString(true), '汉语汉语'); + assert.equal(buffer.lines.get(2)!.translateToString(true), '汉语汉语'); + buffer.resize(7, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉'); + assert.equal(buffer.lines.get(1)!.translateToString(true), '语汉语'); + assert.equal(buffer.lines.get(2)!.translateToString(true), '汉语汉'); + assert.equal(buffer.lines.get(3)!.translateToString(true), '语汉语'); + buffer.resize(6, 10); + assert.equal(buffer.lines.get(0)!.translateToString(true), '汉语汉'); + assert.equal(buffer.lines.get(1)!.translateToString(true), '语汉语'); + assert.equal(buffer.lines.get(2)!.translateToString(true), '汉语汉'); + assert.equal(buffer.lines.get(3)!.translateToString(true), '语汉语'); + }); + + describe('reflowLarger cases', () => { + beforeEach(() => { + // Setup buffer state: + // 'ab' + // 'cd' (wrapped) + // 'ef' + // 'gh' (wrapped) + // 'ij' + // 'kl' (wrapped) + // ' ' + // ' ' + // ' ' + // ' ' + buffer.fillViewportRows(); + buffer.resize(2, 10); + buffer.lines.get(0)!.set(0, [0, 'a', 1, 'a'.charCodeAt(0)]); + buffer.lines.get(0)!.set(1, [0, 'b', 1, 'b'.charCodeAt(0)]); + buffer.lines.get(1)!.set(0, [0, 'c', 1, 'c'.charCodeAt(0)]); + buffer.lines.get(1)!.set(1, [0, 'd', 1, 'd'.charCodeAt(0)]); + buffer.lines.get(1)!.isWrapped = true; + buffer.lines.get(2)!.set(0, [0, 'e', 1, 'e'.charCodeAt(0)]); + buffer.lines.get(2)!.set(1, [0, 'f', 1, 'f'.charCodeAt(0)]); + buffer.lines.get(3)!.set(0, [0, 'g', 1, 'g'.charCodeAt(0)]); + buffer.lines.get(3)!.set(1, [0, 'h', 1, 'h'.charCodeAt(0)]); + buffer.lines.get(3)!.isWrapped = true; + buffer.lines.get(4)!.set(0, [0, 'i', 1, 'i'.charCodeAt(0)]); + buffer.lines.get(4)!.set(1, [0, 'j', 1, 'j'.charCodeAt(0)]); + buffer.lines.get(5)!.set(0, [0, 'k', 1, 'k'.charCodeAt(0)]); + buffer.lines.get(5)!.set(1, [0, 'l', 1, 'l'.charCodeAt(0)]); + buffer.lines.get(5)!.isWrapped = true; + }); + describe('viewport not yet filled', () => { + it('should move the cursor up and add empty lines', () => { + buffer.y = 6; + buffer.resize(4, 10); + assert.equal(buffer.y, 3); + assert.equal(buffer.ydisp, 0); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(), 'abcd'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'efgh'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'ijkl'); + for (let i = 3; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines: number[] = []; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + describe('viewport filled, scrollback remaining', () => { + beforeEach(() => { + buffer.y = 9; + }); + describe('ybase === 0', () => { + it('should move the cursor up and add empty lines', () => { + buffer.resize(4, 10); + assert.equal(buffer.y, 6); + assert.equal(buffer.ydisp, 0); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(), 'abcd'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'efgh'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'ijkl'); + for (let i = 3; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines: number[] = []; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + describe('ybase !== 0', () => { + beforeEach(() => { + // Add 10 empty rows to start + for (let i = 0; i < 10; i++) { + buffer.lines.splice(0, 0, buffer.getBlankLine(DEFAULT_ATTR_DATA)); + } + buffer.ybase = 10; + }); + describe('&& ydisp === ybase', () => { + it('should adjust the viewport and keep ydisp = ybase', () => { + buffer.ydisp = 10; + buffer.resize(4, 10); + assert.equal(buffer.y, 9); + assert.equal(buffer.ydisp, 7); + assert.equal(buffer.ybase, 7); + assert.equal(buffer.lines.length, 17); + for (let i = 0; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + assert.equal(buffer.lines.get(10)!.translateToString(), 'abcd'); + assert.equal(buffer.lines.get(11)!.translateToString(), 'efgh'); + assert.equal(buffer.lines.get(12)!.translateToString(), 'ijkl'); + for (let i = 13; i < 17; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines: number[] = []; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + describe('&& ydisp !== ybase', () => { + it('should keep ydisp at the same value', () => { + buffer.ydisp = 5; + buffer.resize(4, 10); + assert.equal(buffer.y, 9); + assert.equal(buffer.ydisp, 5); + assert.equal(buffer.ybase, 7); + assert.equal(buffer.lines.length, 17); + for (let i = 0; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + assert.equal(buffer.lines.get(10)!.translateToString(), 'abcd'); + assert.equal(buffer.lines.get(11)!.translateToString(), 'efgh'); + assert.equal(buffer.lines.get(12)!.translateToString(), 'ijkl'); + for (let i = 13; i < 17; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines: number[] = []; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + }); + }); + describe('viewport filled, no scrollback remaining', () => { + // ybase === 0 doesn't make sense here as scrollback=0 isn't really supported + describe('ybase !== 0', () => { + beforeEach(() => { + optionsService.options.scrollback = 10; + // Add 10 empty rows to start + for (let i = 0; i < 10; i++) { + buffer.lines.splice(0, 0, buffer.getBlankLine(DEFAULT_ATTR_DATA)); + } + buffer.y = 9; + buffer.ybase = 10; + }); + describe('&& ydisp === ybase', () => { + it('should trim lines and keep ydisp = ybase', () => { + buffer.ydisp = 10; + buffer.resize(4, 10); + assert.equal(buffer.y, 9); + assert.equal(buffer.ydisp, 7); + assert.equal(buffer.ybase, 7); + assert.equal(buffer.lines.length, 17); + for (let i = 0; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + assert.equal(buffer.lines.get(10)!.translateToString(), 'abcd'); + assert.equal(buffer.lines.get(11)!.translateToString(), 'efgh'); + assert.equal(buffer.lines.get(12)!.translateToString(), 'ijkl'); + for (let i = 13; i < 17; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines: number[] = []; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + describe('&& ydisp !== ybase', () => { + it('should trim lines and not change ydisp', () => { + buffer.ydisp = 5; + buffer.resize(4, 10); + assert.equal(buffer.y, 9); + assert.equal(buffer.ydisp, 5); + assert.equal(buffer.ybase, 7); + assert.equal(buffer.lines.length, 17); + for (let i = 0; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + assert.equal(buffer.lines.get(10)!.translateToString(), 'abcd'); + assert.equal(buffer.lines.get(11)!.translateToString(), 'efgh'); + assert.equal(buffer.lines.get(12)!.translateToString(), 'ijkl'); + for (let i = 13; i < 17; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines: number[] = []; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + }); + }); + }); + describe('reflowSmaller cases', () => { + beforeEach(() => { + // Setup buffer state: + // 'abcd' + // 'efgh' (wrapped) + // 'ijkl' + // ' ' + // ' ' + // ' ' + // ' ' + // ' ' + // ' ' + // ' ' + buffer.fillViewportRows(); + buffer.resize(4, 10); + buffer.lines.get(0)!.set(0, [0, 'a', 1, 'a'.charCodeAt(0)]); + buffer.lines.get(0)!.set(1, [0, 'b', 1, 'b'.charCodeAt(0)]); + buffer.lines.get(0)!.set(2, [0, 'c', 1, 'c'.charCodeAt(0)]); + buffer.lines.get(0)!.set(3, [0, 'd', 1, 'd'.charCodeAt(0)]); + buffer.lines.get(1)!.set(0, [0, 'e', 1, 'e'.charCodeAt(0)]); + buffer.lines.get(1)!.set(1, [0, 'f', 1, 'f'.charCodeAt(0)]); + buffer.lines.get(1)!.set(2, [0, 'g', 1, 'g'.charCodeAt(0)]); + buffer.lines.get(1)!.set(3, [0, 'h', 1, 'h'.charCodeAt(0)]); + buffer.lines.get(2)!.set(0, [0, 'i', 1, 'i'.charCodeAt(0)]); + buffer.lines.get(2)!.set(1, [0, 'j', 1, 'j'.charCodeAt(0)]); + buffer.lines.get(2)!.set(2, [0, 'k', 1, 'k'.charCodeAt(0)]); + buffer.lines.get(2)!.set(3, [0, 'l', 1, 'l'.charCodeAt(0)]); + }); + describe('viewport not yet filled', () => { + it('should move the cursor down', () => { + buffer.y = 3; + buffer.resize(2, 10); + assert.equal(buffer.y, 6); + assert.equal(buffer.ydisp, 0); + assert.equal(buffer.ybase, 0); + assert.equal(buffer.lines.length, 10); + assert.equal(buffer.lines.get(0)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'cd'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'ef'); + assert.equal(buffer.lines.get(3)!.translateToString(), 'gh'); + assert.equal(buffer.lines.get(4)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(5)!.translateToString(), 'kl'); + for (let i = 6; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines = [1, 3, 5]; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + describe('viewport filled, scrollback remaining', () => { + beforeEach(() => { + buffer.y = 9; + }); + describe('ybase === 0', () => { + it('should trim the top', () => { + buffer.resize(2, 10); + assert.equal(buffer.y, 9); + assert.equal(buffer.ydisp, 3); + assert.equal(buffer.ybase, 3); + assert.equal(buffer.lines.length, 13); + assert.equal(buffer.lines.get(0)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(1)!.translateToString(), 'cd'); + assert.equal(buffer.lines.get(2)!.translateToString(), 'ef'); + assert.equal(buffer.lines.get(3)!.translateToString(), 'gh'); + assert.equal(buffer.lines.get(4)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(5)!.translateToString(), 'kl'); + for (let i = 6; i < 13; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines = [1, 3, 5]; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + describe('ybase !== 0', () => { + beforeEach(() => { + // Add 10 empty rows to start + for (let i = 0; i < 10; i++) { + buffer.lines.splice(0, 0, buffer.getBlankLine(DEFAULT_ATTR_DATA)); + } + buffer.ybase = 10; + }); + describe('&& ydisp === ybase', () => { + it('should adjust the viewport and keep ydisp = ybase', () => { + buffer.ydisp = 10; + buffer.resize(2, 10); + assert.equal(buffer.ydisp, 13); + assert.equal(buffer.ybase, 13); + assert.equal(buffer.lines.length, 23); + for (let i = 0; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + assert.equal(buffer.lines.get(10)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(11)!.translateToString(), 'cd'); + assert.equal(buffer.lines.get(12)!.translateToString(), 'ef'); + assert.equal(buffer.lines.get(13)!.translateToString(), 'gh'); + assert.equal(buffer.lines.get(14)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(15)!.translateToString(), 'kl'); + for (let i = 16; i < 23; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines = [11, 13, 15]; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + describe('&& ydisp !== ybase', () => { + it('should keep ydisp at the same value', () => { + buffer.ydisp = 5; + buffer.resize(2, 10); + assert.equal(buffer.ydisp, 5); + assert.equal(buffer.ybase, 13); + assert.equal(buffer.lines.length, 23); + for (let i = 0; i < 10; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + assert.equal(buffer.lines.get(10)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(11)!.translateToString(), 'cd'); + assert.equal(buffer.lines.get(12)!.translateToString(), 'ef'); + assert.equal(buffer.lines.get(13)!.translateToString(), 'gh'); + assert.equal(buffer.lines.get(14)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(15)!.translateToString(), 'kl'); + for (let i = 16; i < 23; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines = [11, 13, 15]; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + }); + }); + describe('viewport filled, no scrollback remaining', () => { + // ybase === 0 doesn't make sense here as scrollback=0 isn't really supported + describe('ybase !== 0', () => { + beforeEach(() => { + optionsService.options.scrollback = 10; + // Add 10 empty rows to start + for (let i = 0; i < 10; i++) { + buffer.lines.splice(0, 0, buffer.getBlankLine(DEFAULT_ATTR_DATA)); + } + buffer.ybase = 10; + }); + describe('&& ydisp === ybase', () => { + it('should trim lines and keep ydisp = ybase', () => { + buffer.ydisp = 10; + buffer.y = 13; + buffer.resize(2, 10); + assert.equal(buffer.ydisp, 10); + assert.equal(buffer.ybase, 10); + assert.equal(buffer.lines.length, 20); + for (let i = 0; i < 7; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + assert.equal(buffer.lines.get(7)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(8)!.translateToString(), 'cd'); + assert.equal(buffer.lines.get(9)!.translateToString(), 'ef'); + assert.equal(buffer.lines.get(10)!.translateToString(), 'gh'); + assert.equal(buffer.lines.get(11)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(12)!.translateToString(), 'kl'); + for (let i = 13; i < 20; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines = [8, 10, 12]; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + describe('&& ydisp !== ybase', () => { + it('should trim lines and not change ydisp', () => { + buffer.ydisp = 5; + buffer.y = 13; + buffer.resize(2, 10); + assert.equal(buffer.ydisp, 5); + assert.equal(buffer.ybase, 10); + assert.equal(buffer.lines.length, 20); + for (let i = 0; i < 7; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + assert.equal(buffer.lines.get(7)!.translateToString(), 'ab'); + assert.equal(buffer.lines.get(8)!.translateToString(), 'cd'); + assert.equal(buffer.lines.get(9)!.translateToString(), 'ef'); + assert.equal(buffer.lines.get(10)!.translateToString(), 'gh'); + assert.equal(buffer.lines.get(11)!.translateToString(), 'ij'); + assert.equal(buffer.lines.get(12)!.translateToString(), 'kl'); + for (let i = 13; i < 20; i++) { + assert.equal(buffer.lines.get(i)!.translateToString(), ' '); + } + const wrappedLines = [8, 10, 12]; + for (let i = 0; i < buffer.lines.length; i++) { + assert.equal(buffer.lines.get(i)!.isWrapped, wrappedLines.indexOf(i) !== -1, `line ${i} isWrapped must equal ${wrappedLines.indexOf(i) !== -1}`); + } + }); + }); + }); + }); + }); + }); + }); + + describe('buffer marked to have no scrollback', () => { + it('should always have a scrollback of 0', () => { + // Test size on initialization + buffer = new Buffer(false, new MockOptionsService({ scrollback: 1000 }), bufferService); + buffer.fillViewportRows(); + assert.equal(buffer.lines.maxLength, INIT_ROWS); + // Test size on buffer increase + buffer.resize(INIT_COLS, INIT_ROWS * 2); + assert.equal(buffer.lines.maxLength, INIT_ROWS * 2); + // Test size on buffer decrease + buffer.resize(INIT_COLS, INIT_ROWS / 2); + assert.equal(buffer.lines.maxLength, INIT_ROWS / 2); + }); + }); + + describe('addMarker', () => { + it('should adjust a marker line when the buffer is trimmed', () => { + buffer = new Buffer(true, new MockOptionsService({ scrollback: 0 }), bufferService); + buffer.fillViewportRows(); + const marker = buffer.addMarker(buffer.lines.length - 1); + assert.equal(marker.line, buffer.lines.length - 1); + buffer.lines.onTrimEmitter.fire(1); + assert.equal(marker.line, buffer.lines.length - 2); + }); + it('should dispose of a marker if it is trimmed off the buffer', () => { + buffer = new Buffer(true, new MockOptionsService({ scrollback: 0 }), bufferService); + buffer.fillViewportRows(); + assert.equal(buffer.markers.length, 0); + const marker = buffer.addMarker(0); + assert.equal(marker.isDisposed, false); + assert.equal(buffer.markers.length, 1); + buffer.lines.onTrimEmitter.fire(1); + assert.equal(marker.isDisposed, true); + assert.equal(buffer.markers.length, 0); + }); + }); + + describe ('translateBufferLineToString', () => { + it('should handle selecting a section of ascii text', () => { + const line = new BufferLine(4); + line.setCell(0, CellData.fromCharData([ 0, 'a', 1, 'a'.charCodeAt(0)])); + line.setCell(1, CellData.fromCharData([ 0, 'b', 1, 'b'.charCodeAt(0)])); + line.setCell(2, CellData.fromCharData([ 0, 'c', 1, 'c'.charCodeAt(0)])); + line.setCell(3, CellData.fromCharData([ 0, 'd', 1, 'd'.charCodeAt(0)])); + buffer.lines.set(0, line); + + const str = buffer.translateBufferLineToString(0, true, 0, 2); + assert.equal(str, 'ab'); + }); + + it('should handle a cut-off double width character by including it', () => { + const line = new BufferLine(3); + line.setCell(0, CellData.fromCharData([ 0, '語', 2, 35486 ])); + line.setCell(1, CellData.fromCharData([ 0, '', 0, 0])); + line.setCell(2, CellData.fromCharData([ 0, 'a', 1, 'a'.charCodeAt(0)])); + buffer.lines.set(0, line); + + const str1 = buffer.translateBufferLineToString(0, true, 0, 1); + assert.equal(str1, '語'); + }); + + it('should handle a zero width character in the middle of the string by not including it', () => { + const line = new BufferLine(3); + line.setCell(0, CellData.fromCharData([ 0, '語', 2, '語'.charCodeAt(0) ])); + line.setCell(1, CellData.fromCharData([ 0, '', 0, 0])); + line.setCell(2, CellData.fromCharData([ 0, 'a', 1, 'a'.charCodeAt(0)])); + buffer.lines.set(0, line); + + const str0 = buffer.translateBufferLineToString(0, true, 0, 1); + assert.equal(str0, '語'); + + const str1 = buffer.translateBufferLineToString(0, true, 0, 2); + assert.equal(str1, '語'); + + const str2 = buffer.translateBufferLineToString(0, true, 0, 3); + assert.equal(str2, '語a'); + }); + + it('should handle single width emojis', () => { + const line = new BufferLine(2); + line.setCell(0, CellData.fromCharData([ 0, '😁', 1, '😁'.charCodeAt(0) ])); + line.setCell(1, CellData.fromCharData([ 0, 'a', 1, 'a'.charCodeAt(0)])); + buffer.lines.set(0, line); + + const str1 = buffer.translateBufferLineToString(0, true, 0, 1); + assert.equal(str1, '😁'); + + const str2 = buffer.translateBufferLineToString(0, true, 0, 2); + assert.equal(str2, '😁a'); + }); + + it('should handle double width emojis', () => { + const line = new BufferLine(2); + line.setCell(0, CellData.fromCharData([ 0, '😁', 2, '😁'.charCodeAt(0) ])); + line.setCell(1, CellData.fromCharData([ 0, '', 0, 0])); + buffer.lines.set(0, line); + + const str1 = buffer.translateBufferLineToString(0, true, 0, 1); + assert.equal(str1, '😁'); + + const str2 = buffer.translateBufferLineToString(0, true, 0, 2); + assert.equal(str2, '😁'); + + const line2 = new BufferLine(3); + line2.setCell(0, CellData.fromCharData([ 0, '😁', 2, '😁'.charCodeAt(0) ])); + line2.setCell(1, CellData.fromCharData([ 0, '', 0, 0])); + line2.setCell(2, CellData.fromCharData([ 0, 'a', 1, 'a'.charCodeAt(0)])); + buffer.lines.set(0, line2); + + const str3 = buffer.translateBufferLineToString(0, true, 0, 3); + assert.equal(str3, '😁a'); + }); + }); + // describe('stringIndexToBufferIndex', () => { + // let terminal: TestTerminal; + + // beforeEach(() => { + // terminal = new TestTerminal({rows: 5, cols: 10, scrollback: 5}); + // }); + + // it('multiline ascii', () => { + // const input = 'This is ASCII text spanning multiple lines.'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // for (let i = 0; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([(i / terminal.cols) | 0, i % terminal.cols], bufferIndex); + // } + // }); + + // it('combining e\u0301 in a sentence', () => { + // const input = 'Sitting in the cafe\u0301 drinking coffee.'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // for (let i = 0; i < 19; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([(i / terminal.cols) | 0, i % terminal.cols], bufferIndex); + // } + // // string index 18 & 19 point to combining char e\u0301 ---> same buffer Index + // assert.deepEqual( + // terminal.buffer.stringIndexToBufferIndex(0, 18), + // terminal.buffer.stringIndexToBufferIndex(0, 19)); + // // after the combining char every string index has an offset of -1 + // for (let i = 19; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([((i - 1) / terminal.cols) | 0, (i - 1) % terminal.cols], bufferIndex); + // } + // }); + + // it('multiline combining e\u0301', () => { + // const input = 'e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // // every buffer cell index contains 2 string indices + // for (let i = 0; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([((i >> 1) / terminal.cols) | 0, (i >> 1) % terminal.cols], bufferIndex); + // } + // }); + + // it('surrogate char in a sentence', () => { + // const input = 'The 𝄞 is a clef widely used in modern notation.'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // for (let i = 0; i < 5; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([(i / terminal.cols) | 0, i % terminal.cols], bufferIndex); + // } + // // string index 4 & 5 point to surrogate char 𝄞 ---> same buffer Index + // assert.deepEqual( + // terminal.buffer.stringIndexToBufferIndex(0, 4), + // terminal.buffer.stringIndexToBufferIndex(0, 5)); + // // after the combining char every string index has an offset of -1 + // for (let i = 5; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([((i - 1) / terminal.cols) | 0, (i - 1) % terminal.cols], bufferIndex); + // } + // }); + + // it('multiline surrogate char', () => { + // const input = '𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // // every buffer cell index contains 2 string indices + // for (let i = 0; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([((i >> 1) / terminal.cols) | 0, (i >> 1) % terminal.cols], bufferIndex); + // } + // }); + + // it('surrogate char with combining', () => { + // // eye of Ra with acute accent - string length of 3 + // const input = '𓂀\u0301 - the eye hiroglyph with an acute accent.'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // // index 0..2 should map to 0 + // assert.deepEqual([0, 0], terminal.buffer.stringIndexToBufferIndex(0, 1)); + // assert.deepEqual([0, 0], terminal.buffer.stringIndexToBufferIndex(0, 2)); + // for (let i = 2; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([((i - 2) / terminal.cols) | 0, (i - 2) % terminal.cols], bufferIndex); + // } + // }); + + // it('multiline surrogate with combining', () => { + // const input = '𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // // every buffer cell index contains 3 string indices + // for (let i = 0; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([(((i / 3) | 0) / terminal.cols) | 0, ((i / 3) | 0) % terminal.cols], bufferIndex); + // } + // }); + + // it('fullwidth chars', () => { + // const input = 'These １２３ are some fat numbers.'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // for (let i = 0; i < 6; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([(i / terminal.cols) | 0, i % terminal.cols], bufferIndex); + // } + // // string index 6, 7, 8 take 2 cells + // assert.deepEqual([0, 8], terminal.buffer.stringIndexToBufferIndex(0, 7)); + // assert.deepEqual([1, 0], terminal.buffer.stringIndexToBufferIndex(0, 8)); + // // rest of the string has offset of +3 + // for (let i = 9; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([((i + 3) / terminal.cols) | 0, (i + 3) % terminal.cols], bufferIndex); + // } + // }); + + // it('multiline fullwidth chars', () => { + // const input = '１２３４５６７８９０１２３４５６７８９０'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // for (let i = 9; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i); + // assert.deepEqual([((i << 1) / terminal.cols) | 0, (i << 1) % terminal.cols], bufferIndex); + // } + // }); + + // it('fullwidth combining with emoji - match emoji cell', () => { + // const input = 'Lots of ￥\u0301 make me 😃.'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // const stringIndex = s.match(/😃/).index; + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, stringIndex); + // assert(terminal.buffer.lines.get(bufferIndex[0]).loadCell(bufferIndex[1], new CellData()).getChars(), '😃'); + // }); + + // it('multiline fullwidth chars with offset 1 (currently tests for broken behavior)', () => { + // const input = 'a１２３４５６７８９０１２３４５６７８９０'; + // // the 'a' at the beginning moves all fullwidth chars one to the right + // // now the end of the line contains a dangling empty cell since + // // the next fullwidth char has to wrap early + // // the dangling last cell is wrongly added in the string + // // --> fixable after resolving #1685 + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // for (let i = 10; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i, true); + // const j = (i - 0) << 1; + // assert.deepEqual([(j / terminal.cols) | 0, j % terminal.cols], bufferIndex); + // } + // }); + + // it('test fully wrapped buffer up to last char', () => { + // const input = Array(6).join('1234567890'); + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // for (let i = 0; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i, true); + // assert.equal(input[i], terminal.buffer.lines.get(bufferIndex[0]).loadCell(bufferIndex[1], new CellData()).getChars()); + // } + // }); + + // it('test fully wrapped buffer up to last char with full width odd', () => { + // const input = 'a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301' + // + 'a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301a￥\u0301'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(input, s); + // for (let i = 0; i < input.length; ++i) { + // const bufferIndex = terminal.buffer.stringIndexToBufferIndex(0, i, true); + // assert.equal( + // (!(i % 3)) + // ? input[i] + // : (i % 3 === 1) + // ? input.substr(i, 2) + // : input.substr(i - 1, 2), + // terminal.buffer.lines.get(bufferIndex[0]).loadCell(bufferIndex[1], new CellData()).getChars()); + // } + // }); + + // it('should handle \t in lines correctly', () => { + // const input = '\thttps://google.de'; + // terminal.writeSync(input); + // const s = terminal.buffer.iterator(true).next().content; + // assert.equal(s, Array(optionsService.options.tabStopWidth + 1).join(' ') + 'https://google.de'); + // }); + // }); + // describe('BufferStringIterator', function(): void { + // it('iterator does not overflow buffer limits', function(): void { + // const terminal = new TestTerminal({rows: 5, cols: 10, scrollback: 5}); + // const data = [ + // 'aaaaaaaaaa', + // 'aaaaaaaaa\n', + // 'aaaaaaaaaa', + // 'aaaaaaaaa\n', + // 'aaaaaaaaaa', + // 'aaaaaaaaaa', + // 'aaaaaaaaaa', + // 'aaaaaaaaa\n', + // 'aaaaaaaaaa', + // 'aaaaaaaaaa' + // ]; + // terminal.writeSync(data.join('')); + // // brute force test with insane values + // expect(() => { + // for (let overscan = 0; overscan < 20; ++overscan) { + // for (let start = -10; start < 20; ++start) { + // for (let end = -10; end < 20; ++end) { + // const it = terminal.buffer.iterator(false, start, end, overscan, overscan); + // while (it.hasNext()) { + // it.next(); + // } + // } + // } + // } + // }).to.not.throw(); + // }); + // }); +});