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// Copyright 2017 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.base;
import android.app.Application;
import android.content.ComponentCallbacks;
import android.content.ComponentCallbacks2;
import android.content.Context;
import android.content.res.Configuration;
import android.support.test.InstrumentationRegistry;
import android.support.test.filters.SmallTest;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.chromium.base.test.BaseJUnit4ClassRunner;
import org.chromium.base.test.util.AdvancedMockContext;
/**
* Tests for {@link org.chromium.base.test.util.AdvancedMockContext}.
*/
@RunWith(BaseJUnit4ClassRunner.class)
public class AdvancedMockContextTest {
private static class Callback1 implements ComponentCallbacks {
protected Configuration mConfiguration;
protected boolean mOnLowMemoryCalled;
@Override
public void onConfigurationChanged(Configuration configuration) {
mConfiguration = configuration;
}
@Override
public void onLowMemory() {
mOnLowMemoryCalled = true;
}
}
private static class Callback2 extends Callback1 implements ComponentCallbacks2 {
private int mLevel;
@Override
public void onTrimMemory(int level) {
mLevel = level;
}
}
@Test
@SmallTest
public void testComponentCallbacksForTargetContext() {
Context targetContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
Application targetApplication = (Application) targetContext.getApplicationContext();
AdvancedMockContext context = new AdvancedMockContext(targetContext);
Callback1 callback1 = new Callback1();
Callback2 callback2 = new Callback2();
context.registerComponentCallbacks(callback1);
context.registerComponentCallbacks(callback2);
targetApplication.onLowMemory();
Assert.assertTrue("onLowMemory should have been called.", callback1.mOnLowMemoryCalled);
Assert.assertTrue("onLowMemory should have been called.", callback2.mOnLowMemoryCalled);
Configuration configuration = new Configuration();
targetApplication.onConfigurationChanged(configuration);
Assert.assertEquals("onConfigurationChanged should have been called.", configuration,
callback1.mConfiguration);
Assert.assertEquals("onConfigurationChanged should have been called.", configuration,
callback2.mConfiguration);
targetApplication.onTrimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE);
Assert.assertEquals("onTrimMemory should have been called.",
ComponentCallbacks2.TRIM_MEMORY_MODERATE, callback2.mLevel);
}
}
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