replicant-vendor_cmsdk/tests/src/org/cyanogenmod/tests/common/MockIBinderStubForInterface...

60 lines
2.1 KiB
Java

/**
* Copyright (c) 2016, The CyanogenMod 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 org.cyanogenmod.tests.common;
import android.os.IBinder;
import android.os.IInterface;
import android.os.RemoteCallbackList;
import org.junit.Assert;
import org.mockito.Mockito;
import java.lang.reflect.Field;
/**
* Helper class to mock stubs for IInterfaces
* Ensures that when querying the local interface
* we return the instance itself as to preserve the mock instance
*/
public final class MockIBinderStubForInterface {
private MockIBinderStubForInterface() {}
private static <T extends IBinder> String getStubDescriptor(Class<T> stubClass) {
String descriptor = null;
try {
Field f = stubClass.getDeclaredField("DESCRIPTOR");
f.setAccessible(true);
descriptor = (String) f.get(stubClass);
} catch (NoSuchFieldException | IllegalAccessException e) {
Assert.fail(e.getMessage());
}
return descriptor;
}
public static <T extends IBinder> T getMockInterface(Class<T> stub) {
String descriptor = getStubDescriptor(stub);
T mockInterface = Mockito.mock(stub);
Mockito.doReturn(mockInterface)
.when(mockInterface)
.queryLocalInterface(descriptor == null ?
Mockito.anyString() : Mockito.eq(descriptor));
Mockito.doReturn(Mockito.mock(IBinder.class))
.when((IInterface) mockInterface)
.asBinder();
return mockInterface;
}
}