Quick View: Add a test that checks Quick View opens with Space key.

ui/file_manager/integration_tests/file_manager/quick_view.js

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+'use strict';
+
+/**
+ * Tests opening the Quick View.
+ */
+testcase.openQuickView = function() {
+  var appId;
+
+  StepsRunner.run([
+    function() {
+      setupAndWaitUntilReady(null, RootPath.DOWNLOADS, this.next);
+    },
+    function(results) {
+      appId = results.windowId;
+      // Select an image file.
+      remoteCall.callRemoteTestUtil(
+          'selectFile', appId, ['My Desktop Background.png'], this.next);
+    },
+    function(results) {
+      chrome.test.assertTrue(results);
+      // Press Space key.
+      remoteCall.callRemoteTestUtil(
+          'fakeKeyDown', appId,
+          ['#file-list', ' ', ' ', false, false, false], this.next);
+    },
+    function(results) {
+      chrome.test.assertTrue(results);
+
+      // Wait until Quick View is displayed.
+      repeatUntil(function() {
+        return remoteCall
+            .callRemoteTestUtil(
+                'deepQueryAllElements', appId,
+                [['#quick-view', '#dialog'], null, ['display']])
+            .then(function(results) {
+              chrome.test.assertEq(1, results.length);
+              if (results[0].styles.display === 'none') {
+                return pending('Quick View is not opened yet.');
+              };
+              return results;
+            });
+      }).then(this.next);
+    },
+    function(results) {
+      chrome.test.assertEq(1, results.length);
+      // Check Quick View dialog is displayed.
+      chrome.test.assertEq('block', results[0].styles.display);
+
+      checkIfNoErrorsOccured(this.next);
+    },
+  ]);
+};