Add some tests for MoveToCell

src/browser/input/MoveToCell.test.ts

@@ -0,0 +1,49 @@
+/**
+ * Copyright (c) 2017 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { assert } from 'chai';
+import { IBufferService } from 'common/services/Services';
+import { MockBufferService } from 'common/TestUtils.test';
+import { moveToCellSequence } from './MoveToCell';
+
+describe('MoveToCell', () => {
+  let bufferService: IBufferService;
+
+  beforeEach(() => {
+    bufferService = new MockBufferService(5, 5);
+    bufferService.buffer.x = 3;
+    bufferService.buffer.y = 3;
+  });
+
+  describe('normal buffer', () => {
+    it('should use the right directional escape sequences', () => {
+      assert.equal(moveToCellSequence(2, 3, bufferService, false), '\x1b[D');
+      assert.equal(moveToCellSequence(4, 3, bufferService, false), '\x1b[C');
+    });
+    it('should ignore the Y value', () => {
+      assert.equal(moveToCellSequence(1, 1, bufferService, false), '\x1b[D\x1b[D');
+      assert.equal(moveToCellSequence(1, 2, bufferService, false), '\x1b[D\x1b[D');
+      assert.equal(moveToCellSequence(1, 3, bufferService, false), '\x1b[D\x1b[D');
+      assert.equal(moveToCellSequence(1, 4, bufferService, false), '\x1b[D\x1b[D');
+      assert.equal(moveToCellSequence(1, 5, bufferService, false), '\x1b[D\x1b[D');
+    });
+    it('should use the correct character for application cursor', () => {
+      assert.equal(moveToCellSequence(2, 1, bufferService, false), '\x1b[D');
+      assert.equal(moveToCellSequence(2, 1, bufferService, true), '\x1bOD');
+    });
+  });
+
+  describe('alt buffer', () => {
+    beforeEach(() => {
+      bufferService.buffers.activateAltBuffer();
+      bufferService.buffer.x = 3;
+      bufferService.buffer.y = 3;
+    });
+
+    it('should move the cursor across rows', () => {
+      assert.equal(moveToCellSequence(4, 4, bufferService, false), '\x1b[B\x1b[C');
+    });
+  });
+});