customtabs: Add a test for external app redirection.

chrome/android/javatests/src/org/chromium/chrome/browser/customtabs/CustomTabActivityTestBase.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.customtabs;
 
 import static org.chromium.base.test.util.ScalableTimeout.scaleTimeout;
 
 import android.app.Activity;
+import android.app.Application;
+import android.content.Context;
 import android.content.Intent;
 
 import org.chromium.base.ApplicationStatus;
+import org.chromium.base.PathUtils;
+import org.chromium.base.ThreadUtils;
+import org.chromium.base.library_loader.LibraryLoader;
+import org.chromium.base.library_loader.LibraryProcessType;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.chrome.browser.DeferredStartupHandler;
+import org.chromium.chrome.browser.firstrun.FirstRunStatus;
 import org.chromium.chrome.browser.tab.EmptyTabObserver;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.test.ChromeActivityTestCaseBase;
+import org.chromium.content.browser.BrowserStartupController;
+import org.chromium.content.browser.BrowserStartupController.StartupCallback;
 import org.chromium.content.browser.test.util.Criteria;
 import org.chromium.content.browser.test.util.CriteriaHelper;
 
 import java.lang.ref.WeakReference;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 
 /**
  * Base class for all instrumentation tests that require a {@link CustomTabActivity}.
  */
 public abstract class CustomTabActivityTestBase extends
         ChromeActivityTestCaseBase<CustomTabActivity> {
 
     protected static final long STARTUP_TIMEOUT_MS = scaleTimeout(5) * 1000;
     protected static final long LONG_TIMEOUT_MS = scaleTimeout(10) * 1000;
+    private static final String PRIVATE_DATA_DIRECTORY_SUFFIX = "chrome";
 
     public CustomTabActivityTestBase() {
         super(CustomTabActivity.class);
     }
 
     @Override
-    public void startMainActivity() throws InterruptedException {
+    protected void setUp() throws Exception {
+        super.setUp();
+        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+            @Override
+            public void run() {
+                FirstRunStatus.setFirstRunFlowComplete(true);
+            }
+        });
+        PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
+        LibraryLoader.get(LibraryProcessType.PROCESS_BROWSER).ensureInitialized();
     }
 
     @Override
+    protected void tearDown() throws Exception {
+        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+            @Override
+            public void run() {
+                FirstRunStatus.setFirstRunFlowComplete(false);
+            }
+        });
+        super.tearDown();
+    }
+
+    @Override
+    public void startMainActivity() throws InterruptedException {}
+
+    @Override
     protected void startActivityCompletely(Intent intent) {
         Activity activity = getInstrumentation().startActivitySync(intent);
         assertNotNull("Main activity did not start", activity);
         CriteriaHelper.pollUiThread(new Criteria() {
             @Override
             public boolean isSatisfied() {
                 List<WeakReference<Activity>> list = ApplicationStatus.getRunningActivities();
                 for (WeakReference<Activity> ref : list) {
                     Activity activity = ref.get();
                     if (activity == null) continue;
@@ skipping 38 matching lines @@
         CriteriaHelper.pollUiThread(new Criteria("Deferred startup never completed") {
             @Override
             public boolean isSatisfied() {
                 return DeferredStartupHandler.getInstance().isDeferredStartupCompleteForApp();
             }
         }, STARTUP_TIMEOUT_MS, CriteriaHelper.DEFAULT_POLLING_INTERVAL);
         assertNotNull(tab);
         assertNotNull(tab.getView());
         assertTrue(tab.isCurrentlyACustomTab());
     }
+
+    protected CustomTabsConnection warmUpAndWait() {

[Yusuf, 2017/04/18 17:33:54]

javadoc, now that it is protected

[Benoit L, 2017/04/19 09:19:08]

Done.

+        final Context context = getInstrumentation().getTargetContext().getApplicationContext();
+        CustomTabsConnection connection =
+                CustomTabsTestUtils.setUpConnection((Application) context);
+        final CallbackHelper startupCallbackHelper = new CallbackHelper();
+        assertTrue(connection.warmup(0));
+        ThreadUtils.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                BrowserStartupController.get(LibraryProcessType.PROCESS_BROWSER)
+                        .addStartupCompletedObserver(new StartupCallback() {
+                            @Override
+                            public void onSuccess(boolean alreadyStarted) {
+                                startupCallbackHelper.notifyCalled();
+                            }
+
+                            @Override
+                            public void onFailure() {
+                                fail();
+                            }
+                        });
+            }
+        });
+
+        try {
+            startupCallbackHelper.waitForCallback(0);
+        } catch (TimeoutException | InterruptedException e) {
+            fail();
+        }
+        return connection;
+    }
 }