Fix bad texture view config (#17486)

shell/platform/android/io/flutter/embedding/android/FlutterView.java

@@ -264,7 +264,7 @@ public class FlutterView extends FrameLayout {
     super(context, attrs);
 
     this.flutterTextureView = flutterTextureView;
-    this.renderSurface = flutterSurfaceView;
+    this.renderSurface = flutterTextureView;
 
     init();
   }

shell/platform/android/test/io/flutter/FlutterTestSuite.java

@@ -4,6 +4,7 @@
 
 package io.flutter;
 
+import io.flutter.embedding.android.FlutterActivityAndFragmentDelegateTest;
 import io.flutter.embedding.android.FlutterActivityTest;
 import io.flutter.embedding.android.FlutterAndroidComponentTest;
 import io.flutter.embedding.android.FlutterFragmentTest;
@@ -32,8 +33,8 @@ import test.io.flutter.embedding.engine.dart.DartExecutorTest;
 
 @RunWith(Suite.class)
 @SuiteClasses({
-  // FlutterActivityAndFragmentDelegateTest.class, //TODO(mklim): Fix and re-enable this
   DartExecutorTest.class,
+  FlutterActivityAndFragmentDelegateTest.class,
   FlutterActivityTest.class,
   FlutterAndroidComponentTest.class,
   FlutterEngineCacheTest.class,

shell/platform/android/test/io/flutter/embedding/android/FlutterActivityAndFragmentDelegateTest.java

@@ -220,7 +220,18 @@ public class FlutterActivityAndFragmentDelegateTest {
   public void itGivesHostAnOpportunityToConfigureFlutterTextureView() {
     // ---- Test setup ----
     Host customMockHost = mock(Host.class);
+    when(customMockHost.getContext()).thenReturn(RuntimeEnvironment.application);
+    when(customMockHost.getActivity()).thenReturn(Robolectric.setupActivity(Activity.class));
+    when(customMockHost.getLifecycle()).thenReturn(mock(Lifecycle.class));
+    when(customMockHost.getFlutterShellArgs()).thenReturn(new FlutterShellArgs(new String[] {}));
+    when(customMockHost.getDartEntrypointFunctionName()).thenReturn("main");
+    when(customMockHost.getAppBundlePath()).thenReturn("/fake/path");
+    when(customMockHost.getInitialRoute()).thenReturn("/");
     when(customMockHost.getRenderMode()).thenReturn(RenderMode.texture);
+    when(customMockHost.getTransparencyMode()).thenReturn(TransparencyMode.transparent);
+    when(customMockHost.provideFlutterEngine(any(Context.class))).thenReturn(mockFlutterEngine);
+    when(customMockHost.shouldAttachEngineToActivity()).thenReturn(true);
+    when(customMockHost.shouldDestroyEngineWithHost()).thenReturn(true);
 
     // Create the real object that we're testing.
     FlutterActivityAndFragmentDelegate delegate =