[MD Bookmarks] Add toasts.

chrome/test/data/webui/md_bookmarks/toast_manager_test.js

+// Copyright 2017 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.
+
+suite('<bookmarks-toast-manager>', function() {
+  var toastManager;
+  var store;
+
+  setup(function() {
+    toastManager = document.createElement('bookmarks-toast-manager');
+    replaceBody(toastManager);
+  });
+
+  test('simple show/hide', function() {
+    toastManager.show('test', false);
+    assertTrue(toastManager.open_);
+    assertEquals('test', toastManager.$.content.textContent);
+    assertTrue(toastManager.$$('paper-button').hidden);
+
+    toastManager.hide();
+    assertFalse(toastManager.open_);
+
+    toastManager.show('test', true);
+    assertFalse(toastManager.$$('paper-button').hidden);
+  });
+
+  test('auto hide', function() {
+    toastManager.duration = 100;
+
+    var timeoutFunc = null;
+    var timeoutCounter = 0;
+    var clearedTimeout = null;
+    toastManager.setTimeout_ = function(f) {
+      timeoutFunc = f;
+      return timeoutCounter++;
+    };
+    toastManager.clearTimeout_ = function(n) {
+      clearedTimeout = n;
+    };
+
+    toastManager.show('test', false);
+    assertEquals(0, toastManager.hideTimeout_);
+    assertTrue(toastManager.open_);
+
+    timeoutFunc();
+    assertEquals(null, toastManager.hideTimeout_);
+    assertFalse(toastManager.open_);
+
+    // Check that multiple shows reset the timeout.
+    toastManager.show('test', false);
+    assertEquals(1, toastManager.hideTimeout_);
+    assertTrue(toastManager.open_);
+
+    toastManager.show('test2', false);
+    assertEquals(1, clearedTimeout);
+    assertEquals(2, toastManager.hideTimeout_);
+    assertTrue(toastManager.open_);
+  });
+});