[Chromecast] Add service for "displaying" cast web contents.

chromecast/browser/android/junit/src/org/chromium/chromecast/shell/CastWebContentsComponentTest.java

+// 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.
+
+package org.chromium.chromecast.shell;
+
+import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.eq;
+import static org.mockito.Mockito.verify;
+
+import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.ServiceConnection;
+import android.os.PatternMatcher;
+import android.support.v4.content.LocalBroadcastManager;
+
+import org.junit.Assert;
+import org.junit.Assume;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.Robolectric;
+import org.robolectric.Shadows;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowActivity;
+
+import org.chromium.content_public.browser.WebContents;
+import org.chromium.testing.local.LocalRobolectricTestRunner;
+
+/**
+ * Tests for CastWebContentsComponent.
+ */
+@RunWith(LocalRobolectricTestRunner.class)
+@Config(manifest = Config.NONE)
+public class CastWebContentsComponentTest {
+    private static final String INSTANCE_ID = "1";
+
+    @Mock
+    private WebContents mWebContents;
+
+    private Activity mActivity;
+    private ShadowActivity mShadowActivity;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mActivity = Mockito.spy(Robolectric.buildActivity(Activity.class).setup().get());
+        mShadowActivity = Shadows.shadowOf(mActivity);
+    }
+
+    @Test
+    public void testStartStartsWebContentsActivity() {
+        Assume.assumeFalse(BuildConfig.DISPLAY_WEB_CONTENTS_IN_SERVICE);
+
+        CastWebContentsComponent component = new CastWebContentsComponent(INSTANCE_ID);
+        component.start(mActivity, mWebContents);
+        Intent intent = mShadowActivity.getNextStartedActivity();
+        Assert.assertEquals(
+                intent.getComponent().getClassName(), CastWebContentsActivity.class.getName());
+
+        component.stop(mActivity);
+    }
+
+    @Test
+    public void testStopSendsStopSignalToActivity() {
+        Assume.assumeFalse(BuildConfig.DISPLAY_WEB_CONTENTS_IN_SERVICE);
+
+        BroadcastReceiver receiver = Mockito.mock(BroadcastReceiver.class);
+        IntentFilter intentFilter = new IntentFilter(CastWebContentsActivity.ACTION_STOP_ACTIVITY);
+        intentFilter.addDataScheme(CastWebContentsComponent.ACTION_DATA_SCHEME);
+        intentFilter.addDataAuthority(CastWebContentsComponent.ACTION_DATA_AUTHORITY, null);
+        intentFilter.addDataPath("/" + INSTANCE_ID, PatternMatcher.PATTERN_LITERAL);
+        LocalBroadcastManager.getInstance(mActivity).registerReceiver(receiver, intentFilter);
+
+        CastWebContentsComponent component = new CastWebContentsComponent(INSTANCE_ID);
+        component.start(mActivity, mWebContents);
+        component.stop(mActivity);
+
+        LocalBroadcastManager.getInstance(mActivity).unregisterReceiver(receiver);
+
+        verify(receiver).onReceive(any(Context.class), any(Intent.class));
+    }
+
+    @Test
+    public void testStartBindsWebContentsService() {
+        Assume.assumeTrue(BuildConfig.DISPLAY_WEB_CONTENTS_IN_SERVICE);
+
+        CastWebContentsComponent component = new CastWebContentsComponent(INSTANCE_ID);
+        component.start(mActivity, mWebContents);
+        component.stop(mActivity);
+
+        ArgumentCaptor<Intent> intent = ArgumentCaptor.forClass(Intent.class);
+        verify(mActivity).bindService(
+                intent.capture(), any(ServiceConnection.class), eq(Context.BIND_AUTO_CREATE));
+        Assert.assertEquals(intent.getValue().getComponent().getClassName(),
+                CastWebContentsService.class.getName());
+    }
+
+    @Test
+    public void testStopUnbindsWebContentsService() {
+        Assume.assumeTrue(BuildConfig.DISPLAY_WEB_CONTENTS_IN_SERVICE);
+
+        CastWebContentsComponent component = new CastWebContentsComponent(INSTANCE_ID);
+        component.start(mActivity, mWebContents);
+        component.stop(mActivity);
+
+        verify(mActivity).unbindService(any(ServiceConnection.class));
+    }
+
+    @Test
+    public void testOnComponentClosedCallsCallback() {
+        CastWebContentsComponent.OnComponentClosedHandler callback =
+                Mockito.mock(CastWebContentsComponent.OnComponentClosedHandler.class);
+
+        CastWebContentsComponent component = new CastWebContentsComponent(INSTANCE_ID);
+        component.setOnComponentClosedHandler(callback);
+        component.start(mActivity, mWebContents);
+        component.onComponentClosed(mActivity, INSTANCE_ID);
+        verify(callback).onComponentClosed();
+
+        component.stop(mActivity);
+    }
+
+    @Test
+    public void testOnKeyDownCallsCallback() {
+        CastWebContentsComponent.OnKeyDownHandler callback =
+                Mockito.mock(CastWebContentsComponent.OnKeyDownHandler.class);
+
+        CastWebContentsComponent component = new CastWebContentsComponent(INSTANCE_ID);
+        component.setOnKeyDownHandler(callback);
+        component.start(mActivity, mWebContents);
+        component.onKeyDown(mActivity, INSTANCE_ID, 42);

[Simeon, 2017/05/17 00:31:56]

Since this is a static method, we might want to invoke
CastWebContentsComponent.onKeyDown() instead of component.onKeyDown() to make
that clear.

[thoren, 2017/05/17 18:20:37]

Done. I didn't even realized I did it that way here.

+        component.stop(mActivity);
+
+        verify(callback).onKeyDown(42);
+    }
+}