io.flutter.embedding.android.FlutterSurfaceViewTest Class Reference

Public Member Functions
void	itShouldCreateANewSurfaceWhenReattachedAfterDetachingFromRenderer ()

Detailed Description

Definition at line 26 of file FlutterSurfaceViewTest.java.

Member Function Documentation

itShouldCreateANewSurfaceWhenReattachedAfterDetachingFromRenderer()

void io.flutter.embedding.android.FlutterSurfaceViewTest.itShouldCreateANewSurfaceWhenReattachedAfterDetachingFromRenderer ( )

inline

Definition at line 28 of file FlutterSurfaceViewTest.java.

                                                                                  {
    // Consider this scenario: In an add-to-app context, where multiple Flutter activities share the
    // same engine, a situation occurs. When navigating from FlutterActivity1 to FlutterActivity2,
    // the Flutter view associated with FlutterActivity1 is detached from the engine. Then, the
    // Flutter view of FlutterActivity2 is attached. Upon navigating back to FlutterActivity1, its
    // Flutter view is re-attached to the shared engine.
    //
    // The expected behavior is: When a Flutter view detaches from the shared engine, the associated
    // surface should be released. When the Flutter view re-attaches, a new surface should be
    // created.
 
    // Setup the test.
    final FlutterSurfaceView surfaceView =
        spy(new FlutterSurfaceView(ApplicationProvider.getApplicationContext()));
 
    FlutterJNI fakeFlutterJNI = mock(FlutterJNI.class);
    FlutterRenderer flutterRenderer = new FlutterRenderer(fakeFlutterJNI);
 
    SurfaceHolder fakeSurfaceHolder = mock(SurfaceHolder.class);
    Surface fakeSurface = mock(Surface.class);
    when(surfaceView.getHolder()).thenReturn(fakeSurfaceHolder);
    when(fakeSurfaceHolder.getSurface()).thenReturn(fakeSurface);
    when(surfaceView.isSurfaceAvailableForRendering()).thenReturn(true);
    when(surfaceView.getWindowToken()).thenReturn(mock(android.os.IBinder.class));
 
    // Execute the behavior under test.
    surfaceView.attachToRenderer(flutterRenderer);
 
    // Verify the behavior under test.
    verify(fakeFlutterJNI, times(1)).onSurfaceCreated(any(Surface.class));
 
    // Execute the behavior under test.
    surfaceView.detachFromRenderer();
 
    // Verify the behavior under test.
    verify(fakeFlutterJNI, times(1)).onSurfaceDestroyed();
 
    // Execute the behavior under test.
    surfaceView.attachToRenderer(flutterRenderer);
 
    // Verify the behavior under test.
    verify(fakeFlutterJNI, never()).onSurfaceWindowChanged(any(Surface.class));
    verify(fakeFlutterJNI, times(2)).onSurfaceCreated(any(Surface.class));
  }

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The documentation for this class was generated from the following file:

• shell/platform/android/test/io/flutter/embedding/android/FlutterSurfaceViewTest.java