test("TextDiffEditorModel", function(done) {
		let inst = InstantiationService.create({
			modeService: createMockModeService(),
			modelService: createMockModelService(),
		});
		let input = inst.createInstance(StringEditorInput, "name", 'description', "value", "text/plain", false);
		let otherInput = inst.createInstance(StringEditorInput, "name2", 'description', "value2", "text/plain", false);
		let diffInput = new DiffEditorInput("name", "description", input, otherInput);

		diffInput.resolve(true).then(function(model: any) {
			assert(model);
			assert(model instanceof TextDiffEditorModel);

			let diffEditorModel = model.textDiffEditorModel;
			assert(diffEditorModel.original);
			assert(diffEditorModel.modified);

			return diffInput.resolve(true).then(function(model: any) {
				assert(model.isResolved());

				assert(diffEditorModel !== model.textDiffEditorModel);
				diffInput.dispose();
				assert(!model.textDiffEditorModel);
			});
		}).done(() => {
			done();
		});
	});

	setup(() => {
		eventService = new TestEventService();
		messageService = new TestMessageService();
		modeService = createMockModeService();
		modelService = createMockModelService();
		counter = 0;

		requestService = new MockRequestService(TestWorkspace, (url) => {
			counter++;

			if (/index\.html$/.test(url)) {
				return {
					responseText: 'Hello Html',
					getResponseHeader: key => ({
						'last-modified': counter === 1 ? new Date().toUTCString() : new Date(new Date().getTime() + 1000).toUTCString(),
						'content-type': 'text/html'
					})[key.toLowerCase()]
				};
			} else if (/index_changes\.html$/.test(url)) {
				return {
					responseText: counter === 1 ? 'Hello Html' : 'Hello Changed Html',
					getResponseHeader: key => ({
						'last-modified': counter === 1 ? new Date().toUTCString() : new Date(new Date().getTime() + 1000).toUTCString(),
						'content-type': 'text/html'
					})[key.toLowerCase()]
				};
			}

			return null;
		});
	});

	test('TextDiffEditorModel', function (done) {
		let services = new ServiceCollection();
		services.set(IModeService, createMockModeService());
		services.set(IModelService, createMockModelService());
		let inst = new InstantiationService(services);
		let input = inst.createInstance(StringEditorInput, 'name', 'description', 'value', 'text/plain', false);
		let otherInput = inst.createInstance(StringEditorInput, 'name2', 'description', 'value2', 'text/plain', false);
		let diffInput = new DiffEditorInput('name', 'description', input, otherInput);

		diffInput.resolve(true).then(function (model: any) {
			assert(model);
			assert(model instanceof TextDiffEditorModel);

			let diffEditorModel = model.textDiffEditorModel;
			assert(diffEditorModel.original);
			assert(diffEditorModel.modified);

			return diffInput.resolve(true).then(function (model: any) {
				assert(model.isResolved());

				assert(diffEditorModel !== model.textDiffEditorModel);
				diffInput.dispose();
				assert(!model.textDiffEditorModel);
			});
		}).done(() => {
			done();
		});
	});

suite('TokenSelectionSupport', () => {

	let modelService = createMockModelService();
	let tokenSelectionSupport = new TokenSelectionSupport(modelService);
	let _mode: IMode;

	suiteSetup((done) => {
		load('javascript').then(mode => {
			_mode = mode;
			done();
		});
	});

	function assertGetRangesToPosition(text:string[], lineNumber:number, column:number, ranges:Range[]): void {
		let uri = URI.file('test.js');
		modelService.createModel(text.join('\n'), _mode, uri);

		let actual = tokenSelectionSupport.getRangesToPositionSync(uri, {
			lineNumber: lineNumber,
			column: column
		});

		let actualStr = actual.map(r => new Range(r.range.startLineNumber, r.range.startColumn, r.range.endLineNumber, r.range.endColumn).toString());
		let desiredStr = ranges.map(r => String(r));

		assert.deepEqual(actualStr, desiredStr);

		modelService.destroyModel(uri);
	}

	test('getRangesToPosition #1', () => {

		assertGetRangesToPosition([
			'function a(bar, foo){',
			'\tif (bar) {',
			'\t\treturn (bar + (2 * foo))',
			'\t}',
			'}'
		], 3, 20, [
			new Range(1, 1, 5, 2),
			new Range(1, 21, 5, 2),
			new Range(2, 1, 4, 3),
			new Range(2, 11, 4, 3),
			new Range(3, 1, 4, 2),
			new Range(3, 1, 3, 27),
			new Range(3, 10, 3, 27),
			new Range(3, 11, 3, 26),
			new Range(3, 17, 3, 26),
			new Range(3, 18, 3, 25),
			new Range(3, 19, 3, 20)
		]);
	});
});