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fix BufferLine resize

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This commit is contained in:
Jörg Breitbart
2018-10-09 18:56:48 +02:00
parent 8d16bb6ea2
commit 3877e96d7f
2 changed files with 32 additions and 1 deletions
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src/BufferLine.test.ts
+27
View File
@@ -133,4 +133,31 @@ describe('BufferLine', function(): void {
const line3 = line.clone();
chai.expect(TestBufferLine.prototype.toArray.apply(line3)).eql(line.toArray());
});
it('resize enlarge', function(): void {
const line = new TestBufferLine(5, [1, 'a', 0, 'a'.charCodeAt(0)], false);
line.resize(10, [1, 'a', 0, 'a'.charCodeAt(0)]);
chai.expect(line.toArray()).eql(Array(10).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
it('resize shrink(true)', function(): void {
const line = new TestBufferLine(10, [1, 'a', 0, 'a'.charCodeAt(0)], false);
line.resize(5, [1, 'a', 0, 'a'.charCodeAt(0)], true);
chai.expect(line.toArray()).eql(Array(5).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
it('resize shrink(false)', function(): void {
const line = new TestBufferLine(10, [1, 'a', 0, 'a'.charCodeAt(0)], false);
line.resize(5, [1, 'a', 0, 'a'.charCodeAt(0)], false);
chai.expect(line.toArray()).eql(Array(5).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
it('resize shrink(false) + shrink(false)', function(): void {
const line = new TestBufferLine(20, [1, 'a', 0, 'a'.charCodeAt(0)], false);
line.resize(10, [1, 'a', 0, 'a'.charCodeAt(0)], false);
line.resize(5, [1, 'a', 0, 'a'.charCodeAt(0)], false);
chai.expect(line.toArray()).eql(Array(5).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
it('resize shrink(false) + enlarge', function(): void {
const line = new TestBufferLine(20, [1, 'a', 0, 'a'.charCodeAt(0)], false);
line.resize(10, [1, 'a', 0, 'a'.charCodeAt(0)], false);
line.resize(15, [1, 'a', 0, 'a'.charCodeAt(0)]);
chai.expect(line.toArray()).eql(Array(15).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
});
src/BufferLine.ts
+5 -1
View File
@@ -218,7 +218,11 @@ export class BufferLineTypedArray implements IBufferLine {
if (cols > this.length) {
const data = new Uint32Array(cols * CELL_SIZE);
if (this._data) {
data.set(this._data);
if (cols * CELL_SIZE < this._data.length) {
data.set(this._data.subarray(0, cols * CELL_SIZE));
} else {
data.set(this._data);
}
}
this._data = data;
for (let i = this.length; i < cols; ++i) {