Upstream oodles of Chrome for Android code into Chromium.

chrome/android/javatests/src/org/chromium/chrome/browser/TabCountLabelTest.java

+// Copyright 2015 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.
+
+package org.chromium.chrome.browser;
+
+import static org.chromium.base.test.util.Restriction.RESTRICTION_TYPE_PHONE;
+
+import android.test.suitebuilder.annotation.MediumTest;
+import android.widget.ImageButton;
+
+import com.google.android.apps.chrome.R;
+
+import org.chromium.base.test.util.Feature;
+import org.chromium.base.test.util.Restriction;
+import org.chromium.chrome.browser.toolbar.TabSwitcherDrawable;
+import org.chromium.chrome.test.ChromeTabbedActivityTestBase;
+import org.chromium.chrome.test.util.ChromeTabUtils;
+
+/**
+ * Test suite for the tab count widget on the phone toolbar.
+ */
+
+public class TabCountLabelTest extends ChromeTabbedActivityTestBase {
+
+    /**
+     * Check the tabCount string against an expected value.
+     */
+    private void tabCountLabelCheck(String stepName, int tabCountExpected) {
+        ImageButton tabSwitcherBtn =
+                (ImageButton) getActivity().findViewById(R.id.tab_switcher_button);
+        TabSwitcherDrawable drawable = (TabSwitcherDrawable) tabSwitcherBtn.getDrawable();
+        int tabCountFromDrawable = drawable.getTabCount();
+        assertTrue(stepName + ", " + tabCountExpected + " tab[s] expected, label shows "
+                + tabCountFromDrawable, tabCountExpected == tabCountFromDrawable);
+    }
+
+    /**
+     * Verify displayed Tab Count matches the actual number of tabs.
+     */
+    @MediumTest
+    @Feature({"Browser", "Main"})
+    @Restriction(RESTRICTION_TYPE_PHONE)
+    public void testTabCountLabel() throws InterruptedException {
+        final int tabCount = getActivity().getCurrentTabModel().getCount();
+        tabCountLabelCheck("Initial state", tabCount);
+        ChromeTabUtils.newTabFromMenu(getInstrumentation(), getActivity());
+        // Make sure the TAB_CREATED notification went through
+        getInstrumentation().waitForIdleSync();
+        tabCountLabelCheck("After new tab", tabCount + 1);
+        ChromeTabUtils.closeCurrentTab(getInstrumentation(), getActivity());
+        // Make sure the TAB_CLOSED notification went through
+        getInstrumentation().waitForIdleSync();
+        tabCountLabelCheck("After close tab", tabCount);
+    }
+
+    @Override
+    public void startMainActivity() throws InterruptedException {
+        startMainActivityOnBlankPage();
+    }
+}