Fix tests

src/renderer/ColorManager.test.ts

@@ -3,14 +3,21 @@
  * @license MIT
  */
 
+import jsdom = require('jsdom');
 import { assert } from 'chai';
 import { ColorManager } from './ColorManager';
 
 describe('ColorManager', () => {
   let cm: ColorManager;
+  let dom: jsdom.JSDOM;
+  let document: Document;
+  let window: Window;
 
   beforeEach(() => {
-    cm = new ColorManager();
+    dom = new jsdom.JSDOM('');
+    window = dom.window;
+    document = window.document;
+    cm = new ColorManager(document);
   });
 
   describe('constructor', () => {

src/renderer/ColorManager.ts

@@ -67,8 +67,10 @@ function toPaddedHex(c: number): string {
  */
 export class ColorManager implements IColorManager {
   public colors: IColorSet;
+  private _document: Document;
 
-  constructor() {
+  constructor(document: Document) {
+    this._document = document;
     this.colors = {
       foreground: DEFAULT_FOREGROUND,
       background: DEFAULT_BACKGROUND,
@@ -124,7 +126,7 @@ export class ColorManager implements IColorManager {
 
   private _isColorValid(color: string): boolean {
     const litmus = 'red';
-    const d = document.createElement('div');
+    const d = this._document.createElement('div');
     d.style.color = litmus;
     d.style.color = color;
 

src/renderer/Renderer.ts

@@ -31,7 +31,7 @@ export class Renderer extends EventEmitter implements IRenderer {
 
   constructor(private _terminal: ITerminal, theme: ITheme) {
     super();
-    this.colorManager = new ColorManager();
+    this.colorManager = new ColorManager(document);
     if (theme) {
       this.colorManager.setTheme(theme);
     }