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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.mediaframeworktest.unit;
import static org.mockito.Mockito.*;
import android.graphics.ImageFormat;
import android.media.Image;
import android.media.Image.Plane;
import android.media.ImageReader;
import android.media.ImageReader.OnImageAvailableListener;
import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.SmallTest;
public class ImageReaderTest extends AndroidTestCase {
private static final String TAG = "ImageReaderTest-unit";
private static final int DEFAULT_WIDTH = 640;
private static final int DEFAULT_HEIGHT = 480;
private static final int DEFAULT_FORMAT = ImageFormat.YUV_420_888;
private static final int DEFAULT_MAX_IMAGES = 3;
private ImageReader mReader;
private Image mImage1;
private Image mImage2;
private Image mImage3;
@Override
protected void setUp() throws Exception {
super.setUp();
/**
* Workaround for mockito and JB-MR2 incompatibility
*
* Avoid java.lang.IllegalArgumentException: dexcache == null
* https://code.google.com/p/dexmaker/issues/detail?id=2
*/
System.setProperty("dexmaker.dexcache", getContext().getCacheDir().toString());
// TODO: refactor above into one of the test runners
mReader = spy(ImageReader.newInstance(DEFAULT_WIDTH, DEFAULT_HEIGHT, DEFAULT_FORMAT,
DEFAULT_MAX_IMAGES));
mImage1 = mock(Image.class);
mImage2 = mock(Image.class);
mImage3 = mock(Image.class);
/**
* Ensure rest of classes are mockable
*/
{
mock(Plane.class);
mock(OnImageAvailableListener.class);
}
}
@Override
protected void tearDown() throws Exception {
mReader.close();
super.tearDown();
}
/**
* Return null when there is nothing in the image queue.
*/
@SmallTest
public void testGetLatestImageEmpty() {
when(mReader.acquireNextImage()).thenReturn(null);
when(mReader.acquireNextImageNoThrowISE()).thenReturn(null);
assertEquals(null, mReader.acquireLatestImage());
}
/**
* Return the last image from the image queue, close up the rest.
*/
@SmallTest
public void testGetLatestImage1() {
when(mReader.acquireNextImage()).thenReturn(mImage1);
when(mReader.acquireNextImageNoThrowISE()).thenReturn(null);
assertEquals(mImage1, mReader.acquireLatestImage());
verify(mImage1, never()).close();
}
/**
* Return the last image from the image queue, close up the rest.
*/
@SmallTest
public void testGetLatestImage2() {
when(mReader.acquireNextImage()).thenReturn(mImage1);
when(mReader.acquireNextImageNoThrowISE()).thenReturn(mImage2).thenReturn(null);
assertEquals(mImage2, mReader.acquireLatestImage());
verify(mImage1, atLeastOnce()).close();
verify(mImage2, never()).close();
}
/**
* Return the last image from the image queue, close up the rest.
*/
@SmallTest
public void testGetLatestImage3() {
when(mReader.acquireNextImage()).thenReturn(mImage1);
when(mReader.acquireNextImageNoThrowISE()).thenReturn(mImage2).
thenReturn(mImage3).
thenReturn(null);
assertEquals(mImage3, mReader.acquireLatestImage());
verify(mImage1, atLeastOnce()).close();
verify(mImage2, atLeastOnce()).close();
verify(mImage3, never()).close();
}
/**
* Return null if get a IllegalStateException with no images in the queue.
*/
@SmallTest
public void testGetLatestImageTooManyBuffersAcquiredEmpty() {
when(mReader.acquireNextImage()).thenThrow(new IllegalStateException());
try {
mReader.acquireLatestImage();
fail("Expected IllegalStateException to be thrown");
} catch(IllegalStateException e) {
}
}
/**
* All images are cleaned up when we get an unexpected Error.
*/
@SmallTest
public void testGetLatestImageExceptionalError() {
when(mReader.acquireNextImage()).thenReturn(mImage1);
when(mReader.acquireNextImageNoThrowISE()).thenReturn(mImage2).
thenReturn(mImage3).
thenThrow(new OutOfMemoryError());
try {
mReader.acquireLatestImage();
fail("Impossible");
} catch(OutOfMemoryError e) {
}
verify(mImage1, atLeastOnce()).close();
verify(mImage2, atLeastOnce()).close();
verify(mImage3, atLeastOnce()).close();
}
/**
* All images are cleaned up when we get an unexpected RuntimeException.
*/
@SmallTest
public void testGetLatestImageExceptionalRuntime() {
when(mReader.acquireNextImage()).thenReturn(mImage1);
when(mReader.acquireNextImageNoThrowISE()).thenReturn(mImage2).
thenReturn(mImage3).
thenThrow(new RuntimeException());
try {
mReader.acquireLatestImage();
fail("Impossible");
} catch(RuntimeException e) {
}
verify(mImage1, atLeastOnce()).close();
verify(mImage2, atLeastOnce()).close();
verify(mImage3, atLeastOnce()).close();
}
}
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