MD History: Hook all elements into the page and add tests.

chrome/test/data/webui/md_history/history_overflow_menu_test.js

Index: chrome/test/data/webui/md_history/history_overflow_menu_test.js
diff --git a/chrome/test/data/webui/md_history/history_overflow_menu_test.js b/chrome/test/data/webui/md_history/history_overflow_menu_test.js
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index 0000000000000000000000000000000000000000..894bf857df241e10f72f46702e061195a97a4313
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+++ b/chrome/test/data/webui/md_history/history_overflow_menu_test.js
@@ -0,0 +1,69 @@
+// 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.
+
+cr.define('md_history.history_overflow_menu_test', function() {
+  // Menu button event.
+  var MENU_EVENT = {
+    detail: {
+      accessTime: 1
+    }
+  };
+
+  var ADDITIONAL_MENU_EVENT = {
+    detail: {
+      accessTime: 2
+    }
+  };
+
+  function registerTests() {
+    suite('#overflow-menu', function() {
+      var element;
+
+      suiteSetup(function() {
+        element = $('history-card-manager');
+      });
+
+      test('opening and closing menu', function() {
+        element.toggleMenu_(MENU_EVENT);
+        assertEquals(true, element.menuOpen);
+        assertEquals(1, element.menuIdentifier);
+
+        // Test having the same menu event (pressing the same button) closes the
+        // overflow menu.
+        element.toggleMenu_(MENU_EVENT);
+        assertEquals(false, element.menuOpen);
+
+        // Test having consecutive distinct menu events moves the menu to the
+        // new button.
+        element.toggleMenu_(MENU_EVENT);
+        element.toggleMenu_(ADDITIONAL_MENU_EVENT);
+        assertEquals(2, element.menuIdentifier);
+        assertEquals(true, element.menuOpen);
+        element.toggleMenu_(MENU_EVENT);
+        assertEquals(true, element.menuOpen);
+        assertEquals(1, element.menuIdentifier);
+
+        element.closeMenu();
+        assertEquals(false, element.menuOpen);
+        assertEquals(1, element.menuIdentifier);
+      });
+
+      test('keyboard input for closing menu', function() {
+        // Test that pressing escape on the document closes the menu. In the
+        // actual page, it will take two presses to close the menu due to focus.
+        // TODO(yingran): Fix this behavior to only require one key press.
+        element.toggleMenu_(MENU_EVENT);
+        MockInteractions.pressAndReleaseKeyOn(document, 27);
+        assertEquals(false, element.menuOpen);
+      });
+
+      teardown(function() {
+        element.menuIdentifier = 0;
+      });
+    });
+  }
+  return {
+    registerTests: registerTests
+  };
+});