Move MouseHelper.test into browser

src/browser/input/MouseHelper.test.ts

@@ -0,0 +1,49 @@
+/**
+ * Copyright (c) 2017 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import jsdom = require('jsdom');
+import { assert } from 'chai';
+import { MouseHelper } from 'browser/input/MouseHelper';
+import { MockCharSizeService } from 'browser/TestUtils.test';
+
+const CHAR_WIDTH = 10;
+const CHAR_HEIGHT = 20;
+
+describe('MouseHelper.getCoords', () => {
+  let document: Document;
+  let mouseHelper: MouseHelper;
+
+  beforeEach(() => {
+    document = new jsdom.JSDOM('').window.document;
+    const mockRenderService = {
+      dimensions: {
+        actualCellWidth: CHAR_WIDTH,
+        actualCellHeight: CHAR_HEIGHT
+      }
+    };
+    mouseHelper = new MouseHelper(mockRenderService as any, new MockCharSizeService(CHAR_WIDTH, CHAR_HEIGHT));
+  });
+
+  it('should return the cell that was clicked', () => {
+    let coords: [number, number] | undefined;
+    coords = mouseHelper.getCoords({ clientX: CHAR_WIDTH / 2, clientY: CHAR_HEIGHT / 2 }, document.createElement('div'), 10, 10);
+    assert.deepEqual(coords, [1, 1]);
+    coords = mouseHelper.getCoords({ clientX: CHAR_WIDTH, clientY: CHAR_HEIGHT }, document.createElement('div'), 10, 10);
+    assert.deepEqual(coords, [1, 1]);
+    coords = mouseHelper.getCoords({ clientX: CHAR_WIDTH, clientY: CHAR_HEIGHT + 1 }, document.createElement('div'), 10, 10);
+    assert.deepEqual(coords, [1, 2]);
+    coords = mouseHelper.getCoords({ clientX: CHAR_WIDTH + 1, clientY: CHAR_HEIGHT }, document.createElement('div'), 10, 10);
+    assert.deepEqual(coords, [2, 1]);
+  });
+
+  it('should ensure the coordinates are returned within the terminal bounds', () => {
+    let coords: [number, number] | undefined;
+    coords = mouseHelper.getCoords({ clientX: -1, clientY: -1 }, document.createElement('div'), 10, 10);
+    assert.deepEqual(coords, [1, 1]);
+    // Event are double the cols/rows
+    coords = mouseHelper.getCoords({ clientX: CHAR_WIDTH * 20, clientY: CHAR_HEIGHT * 20 }, document.createElement('div'), 10, 10);
+    assert.deepEqual(coords, [10, 10], 'coordinates should never come back as larger than the terminal');
+  });
+});