Video Tutorials : Added tests for video player view binder

Bug: 1142645
Change-Id: I8c26e00a7239f2f37180ddbb37f52e92b9973bd8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2497433
Commit-Queue: Shakti Sahu <shaktisahu@chromium.org>
Reviewed-by: Calder Kitagawa <ckitagawa@chromium.org>
Cr-Commit-Position: refs/heads/master@{#821017}

chrome/browser/video_tutorials/internal/BUILD.gn

@@ -172,6 +172,7 @@ if (is_android) {
       "android/java/src/org/chromium/chrome/browser/video_tutorials/iph/VideoIPHTest.java",
       "android/java/src/org/chromium/chrome/browser/video_tutorials/languages/LanguagePickerTest.java",
       "android/java/src/org/chromium/chrome/browser/video_tutorials/list/TutorialListCoordinatorTest.java",
+      "android/java/src/org/chromium/chrome/browser/video_tutorials/player/VideoPlayerViewBinderTest.java",
     ]
     deps = [
       ":java",
@@ -180,6 +181,7 @@ if (is_android) {
       "//chrome/browser/video_tutorials:java",
       "//chrome/browser/video_tutorials:test_support_java",
       "//chrome/test/android:chrome_java_test_support",
+      "//components/thin_webview:java",
       "//content/public/test/android:content_java_test_support",
       "//third_party/android_deps:androidx_annotation_annotation_java",
       "//third_party/android_deps:androidx_recyclerview_recyclerview_java",
@@ -190,6 +192,7 @@ if (is_android) {
       "//third_party/hamcrest:hamcrest_core_java",
       "//third_party/junit",
       "//third_party/mockito:mockito_java",
+      "//ui/android:ui_java",
       "//ui/android:ui_java_test_support",
     ]
   }

chrome/browser/video_tutorials/internal/android/java/res/layout/video_player_loading.xml

@@ -5,6 +5,7 @@
 
 <FrameLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/loading_root"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@android:color/background_dark">

chrome/browser/video_tutorials/internal/android/java/src/org/chromium/chrome/browser/video_tutorials/player/VideoPlayerViewBinderTest.java

+// Copyright 2020 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.video_tutorials.player;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import android.app.Activity;
+import android.support.test.rule.ActivityTestRule;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.TextView;
+
+import androidx.test.filters.SmallTest;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+
+import org.chromium.base.test.UiThreadTest;
+import org.chromium.chrome.browser.video_tutorials.R;
+import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
+import org.chromium.components.thinwebview.ThinWebView;
+import org.chromium.content_public.browser.test.util.TestThreadUtils;
+import org.chromium.ui.modelutil.PropertyModel;
+import org.chromium.ui.modelutil.PropertyModelChangeProcessor;
+import org.chromium.ui.test.util.DummyUiActivity;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+/**
+ * Tests for {@link VideoPlayerViewBinder}.
+ */
+@RunWith(ChromeJUnit4ClassRunner.class)
+public class VideoPlayerViewBinderTest {
+    @Rule
+    public ActivityTestRule<DummyUiActivity> mActivityTestRule =
+            new ActivityTestRule<>(DummyUiActivity.class);
+
+    private Activity mActivity;
+    private View mMainView;
+    private View mLoadingView;
+    private View mLanguagePickerView;
+    private View mControls;
+
+    private PropertyModel mModel;
+    private PropertyModelChangeProcessor mMCP;
+
+    @Mock
+    private ThinWebView mThinWebView;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+        mModel = new PropertyModel(VideoPlayerProperties.ALL_KEYS);
+        mActivity = mActivityTestRule.getActivity();
+
+        TestThreadUtils.runOnUiThreadBlocking(() -> {
+            FrameLayout thinWebViewLayout = new FrameLayout(mActivity);
+            Mockito.when(mThinWebView.getView()).thenReturn(thinWebViewLayout);
+
+            VideoPlayerView videoPlayerView = new VideoPlayerView(mActivity, mModel, mThinWebView);
+            mMainView = videoPlayerView.getView();
+            mActivity.setContentView(mMainView);
+
+            mLanguagePickerView = mMainView.findViewById(R.id.language_picker);
+            mLoadingView = mMainView.findViewById(R.id.loading_root);
+            mControls = mMainView.findViewById(R.id.player_root);
+            mLanguagePickerView.setVisibility(View.GONE);
+            mLoadingView.setVisibility(View.GONE);
+            mControls.setVisibility(View.GONE);
+            mMCP = PropertyModelChangeProcessor.create(
+                    mModel, videoPlayerView, new VideoPlayerViewBinder());
+        });
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        mMCP.destroy();
+    }
+
+    @Test
+    @UiThreadTest
+    @SmallTest
+    public void testLoadingAnimation() {
+        mModel.set(VideoPlayerProperties.SHOW_LOADING_SCREEN, true);
+        assertEquals(View.VISIBLE, mLoadingView.getVisibility());
+        mModel.set(VideoPlayerProperties.SHOW_LOADING_SCREEN, false);
+        assertEquals(View.GONE, mLoadingView.getVisibility());
+    }
+
+    @Test
+    @UiThreadTest
+    @SmallTest
+    public void testLanguagePickerVisibility() {
+        mModel.set(VideoPlayerProperties.SHOW_LANGUAGE_PICKER, true);
+        assertEquals(View.VISIBLE, mLanguagePickerView.getVisibility());
+    }
+
+    @Test
+    @UiThreadTest
+    @SmallTest
+    public void testControlsVisibility() {
+        mModel.set(VideoPlayerProperties.SHOW_MEDIA_CONTROLS, true);
+        assertEquals(View.VISIBLE, mControls.getVisibility());
+    }
+
+    @Test
+    @UiThreadTest
+    @SmallTest
+    public void testTryNowButton() {
+        View tryNowButton = mControls.findViewById(R.id.try_now);
+        mModel.set(VideoPlayerProperties.SHOW_TRY_NOW, true);
+        assertEquals(View.VISIBLE, tryNowButton.getVisibility());
+
+        AtomicBoolean buttonClicked = new AtomicBoolean();
+        mModel.set(VideoPlayerProperties.CALLBACK_TRY_NOW, () -> buttonClicked.set(true));
+        tryNowButton.performClick();
+        assertTrue(buttonClicked.get());
+    }
+
+    @Test
+    @UiThreadTest
+    @SmallTest
+    public void testWatchNextButton() {
+        View watchNextButton = mControls.findViewById(R.id.watch_next);
+        mModel.set(VideoPlayerProperties.SHOW_WATCH_NEXT, true);
+        assertEquals(View.VISIBLE, watchNextButton.getVisibility());
+
+        AtomicBoolean buttonClicked = new AtomicBoolean();
+        mModel.set(VideoPlayerProperties.CALLBACK_WATCH_NEXT, () -> buttonClicked.set(true));
+        watchNextButton.performClick();
+        assertTrue(buttonClicked.get());
+    }
+
+    @Test
+    @UiThreadTest
+    @SmallTest
+    public void testChangeLanguageButton() {
+        TextView changeLanguage = mControls.findViewById(R.id.change_language);
+        String languageName = "XYZ";
+        mModel.set(VideoPlayerProperties.SHOW_CHANGE_LANGUAGE, true);
+        mModel.set(VideoPlayerProperties.CHANGE_LANGUAGE_BUTTON_TEXT, languageName);
+        assertEquals(View.VISIBLE, changeLanguage.getVisibility());
+        assertTrue(TextUtils.equals(languageName, changeLanguage.getText()));
+
+        AtomicBoolean buttonClicked = new AtomicBoolean();
+        mModel.set(VideoPlayerProperties.CALLBACK_CHANGE_LANGUAGE, () -> buttonClicked.set(true));
+        changeLanguage.performClick();
+        assertTrue(buttonClicked.get());
+    }
+
+    @Test
+    @UiThreadTest
+    @SmallTest
+    public void testShareButton() {
+        View shareButton = mControls.findViewById(R.id.share_button);
+        AtomicBoolean buttonClicked = new AtomicBoolean();
+        mModel.set(VideoPlayerProperties.CALLBACK_SHARE, () -> buttonClicked.set(true));
+        shareButton.performClick();
+        assertTrue(buttonClicked.get());
+    }
+
+    @Test
+    @UiThreadTest
+    @SmallTest
+    public void testCloseButton() {
+        View closeButton = mControls.findViewById(R.id.close_button);
+        AtomicBoolean buttonClicked = new AtomicBoolean();
+        mModel.set(VideoPlayerProperties.CALLBACK_CLOSE, () -> buttonClicked.set(true));
+        closeButton.performClick();
+        assertTrue(buttonClicked.get());
+    }
+}