Upstream oodles of Chrome for Android code into Chromium.

chrome/android/javatests/src/org/chromium/chrome/browser/tabmodel/ChromeTabCreatorTest.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.tabmodel;
+
+import static org.chromium.base.test.util.Restriction.RESTRICTION_TYPE_LOW_END_DEVICE;
+import static org.chromium.base.test.util.Restriction.RESTRICTION_TYPE_NON_LOW_END_DEVICE;
+
+import android.test.suitebuilder.annotation.MediumTest;
+
+import org.chromium.base.ThreadUtils;
+import org.chromium.base.test.util.Feature;
+import org.chromium.base.test.util.Restriction;
+import org.chromium.chrome.browser.tab.ChromeTab;
+import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
+import org.chromium.chrome.test.ChromeTabbedActivityTestBase;
+import org.chromium.chrome.test.util.ChromeTabUtils;
+import org.chromium.chrome.test.util.TestHttpServerClient;
+import org.chromium.content_public.browser.LoadUrlParams;
+
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+
+/**
+ * Tests for ChromeTabCreator.
+ */
+public class ChromeTabCreatorTest extends ChromeTabbedActivityTestBase  {
+    private static final String TEST_URL =
+            TestHttpServerClient.getUrl("chrome/test/data/android/about.html");
+
+    /**
+     * Verify that tabs opened in background on low-end are loaded lazily.
+     */
+    @Restriction(RESTRICTION_TYPE_LOW_END_DEVICE)
+    @MediumTest
+    @Feature({"Browser"})
+    public void testCreateNewTabInBackgroundLowEnd()
+            throws ExecutionException, InterruptedException {
+        final ChromeTab fgTab = ChromeTab.fromTab(getActivity().getActivityTab());
+        final ChromeTab bgTab = ThreadUtils.runOnUiThreadBlocking(new Callable<ChromeTab>() {
+            @Override
+            public ChromeTab call() {
+                return getActivity().getCurrentTabCreator().createNewTab(
+                        new LoadUrlParams(TEST_URL), TabLaunchType.FROM_LONGPRESS_BACKGROUND,
+                        fgTab);
+            }
+        });
+
+        // Verify that the background tab is not loading.
+        assertFalse(bgTab.isLoading());
+
+        // Switch tabs and verify that the tab is loaded as it gets foregrounded.
+        ChromeTabUtils.waitForTabPageLoaded(bgTab, new Runnable() {
+            @Override
+            public void run() {
+                ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+                    @Override
+                    public void run() {
+                        TabModelUtils.setIndex(getActivity().getCurrentTabModel(), indexOf(bgTab));
+                    }
+                });
+            }
+        });
+        assertNotNull(bgTab.getView());
+    }
+
+    /**
+     * Verify that tabs opened in background on regular devices are loaded eagerly.
+     */
+    @Restriction(RESTRICTION_TYPE_NON_LOW_END_DEVICE)
+    @MediumTest
+    @Feature({"Browser"})
+    public void testCreateNewTabInBackground()
+            throws ExecutionException, InterruptedException {
+        final ChromeTab fgTab = ChromeTab.fromTab(getActivity().getActivityTab());
+        ChromeTab bgTab = ThreadUtils.runOnUiThreadBlocking(new Callable<ChromeTab>() {
+            @Override
+            public ChromeTab call() {
+                return getActivity().getCurrentTabCreator().createNewTab(
+                        new LoadUrlParams(TEST_URL), TabLaunchType.FROM_LONGPRESS_BACKGROUND,
+                        fgTab);
+            }
+        });
+
+        // Verify that the background tab is loaded.
+        assertNotNull(bgTab.getView());
+        ChromeTabUtils.waitForTabPageLoaded(bgTab, TEST_URL);
+    }
+
+    /**
+     * @return the index of the given tab in the current tab model
+     */
+    private int indexOf(ChromeTab tab) {
+        return getActivity().getCurrentTabModel().indexOf(tab);
+    }
+
+
+    @Override
+    public void startMainActivity() throws InterruptedException {
+        startMainActivityOnBlankPage();
+    }
+}