SurfaceTextureWrapperTest.java

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package io.flutter.embedding.engine.renderer;
 
import static junit.framework.TestCase.*;
import static org.mockito.Mockito.*;
 
import android.graphics.SurfaceTexture;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
 
@RunWith(AndroidJUnit4.class)
public class SurfaceTextureWrapperTest {
 
  @Test
  public void attachToGLContext() {
    final SurfaceTexture tx = mock(SurfaceTexture.class);
    final SurfaceTextureWrapper wrapper = new SurfaceTextureWrapper(tx);
 
    wrapper.attachToGLContext(0);
    verify(tx, times(1)).attachToGLContext(0);
    verifyNoMoreInteractions(tx);
  }
 
  @Test
  public void attachToGLContext_detachesFromCurrentContext() {
    final SurfaceTexture tx = mock(SurfaceTexture.class);
    final SurfaceTextureWrapper wrapper = new SurfaceTextureWrapper(tx);
 
    wrapper.attachToGLContext(0);
 
    reset(tx);
 
    wrapper.attachToGLContext(0);
    verify(tx, times(1)).detachFromGLContext();
    verify(tx, times(1)).attachToGLContext(0);
    verifyNoMoreInteractions(tx);
  }
 
  @Test
  public void attachToGLContext_doesNotDetacheFromCurrentContext() {
    final SurfaceTexture tx = mock(SurfaceTexture.class);
    final SurfaceTextureWrapper wrapper = new SurfaceTextureWrapper(tx);
 
    wrapper.attachToGLContext(0);
 
    wrapper.detachFromGLContext();
 
    reset(tx);
 
    wrapper.attachToGLContext(0);
    verify(tx, times(1)).attachToGLContext(0);
    verifyNoMoreInteractions(tx);
  }
 
  @Test
  public void detachFromGLContext() {
    final SurfaceTexture tx = mock(SurfaceTexture.class);
    final SurfaceTextureWrapper wrapper = new SurfaceTextureWrapper(tx);
 
    wrapper.attachToGLContext(0);
    reset(tx);
 
    wrapper.detachFromGLContext();
    verify(tx, times(1)).detachFromGLContext();
    verifyNoMoreInteractions(tx);
  }
 
  @Test
  public void release() {
    final SurfaceTexture tx = mock(SurfaceTexture.class);
    final SurfaceTextureWrapper wrapper = new SurfaceTextureWrapper(tx);
 
    wrapper.release();
 
    verify(tx, times(1)).release();
    reset(tx);
 
    wrapper.detachFromGLContext();
    wrapper.attachToGLContext(0);
    verifyNoMoreInteractions(tx);
  }
}