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/*
* Copyright (C) 2017 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.dx.mockito.inline.tests;
import android.content.Intent;
import android.os.IBinder;
import android.print.PrintAttributes;
import android.printservice.PrintService;
import android.support.test.runner.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;
@RunWith(AndroidJUnit4.class)
public class MockFinal {
@Test
public void mockFinalJavaMethod() throws Exception {
ClassLoader fakeParent = mock(ClassLoader.class);
ClassLoader mockClassLoader = mock(ClassLoader.class);
assertNull(mockClassLoader.getParent());
// ClassLoader#getParent is final
when(mockClassLoader.getParent()).thenReturn(fakeParent);
assertSame(fakeParent, mockClassLoader.getParent());
}
@Test
public void mockFinalAndroidFrameworkClass() throws Exception {
// PrintAttributes is final
PrintAttributes mockAttributes = mock(PrintAttributes.class);
assertEquals(0, mockAttributes.getColorMode());
when(mockAttributes.getColorMode()).thenReturn(42);
assertEquals(42, mockAttributes.getColorMode());
}
@Test
public void mockFinalMethodOfAndroidFrameworkClass() throws Exception {
IBinder fakeBinder = mock(IBinder.class);
PrintService mockService = mock(PrintService.class);
assertNull(mockService.onBind(new Intent()));
// PrintService#onBind is final
when(mockService.onBind(any(Intent.class))).thenReturn(fakeBinder);
assertSame(fakeBinder, mockService.onBind(new Intent()));
}
private final class FinalNonDefaultConstructorClass {
public FinalNonDefaultConstructorClass(int i) {
}
String returnA() {
return "A";
}
}
@Test
public void mockNonDefaultConstructorClass() throws Exception {
FinalNonDefaultConstructorClass mock = mock(FinalNonDefaultConstructorClass.class);
assertNull(mock.returnA());
when(mock.returnA()).thenReturn("fakeA");
assertEquals("fakeA", mock.returnA());
}
private interface NonDefaultConstructorInterface {
String returnA();
}
@Test
public void mockNonDefaultConstructorInterface() throws Exception {
NonDefaultConstructorInterface mock = mock(NonDefaultConstructorInterface.class);
assertNull(mock.returnA());
when(mock.returnA()).thenReturn("fakeA");
assertEquals("fakeA", mock.returnA());
}
private static class SuperClass {
final String returnA() {
return "superA";
}
String returnB() {
return "superB";
}
String returnC() {
return "superC";
}
}
private static final class SubClass extends SuperClass {
String returnC() {
return "subC";
}
}
@Test
public void mockSubClass() throws Exception {
SubClass mocked = mock(SubClass.class);
SuperClass mockedSuper = mock(SuperClass.class);
SubClass nonMocked = new SubClass();
SuperClass nonMockedSuper = new SuperClass();
// Mock returns dummy value by default
assertNull(mocked.returnA());
assertNull(mocked.returnB());
assertNull(mocked.returnC());
assertNull(mockedSuper.returnA());
assertNull(mockedSuper.returnB());
assertNull(mockedSuper.returnC());
// Set fake values for mockedSuper
when(mockedSuper.returnA()).thenReturn("fakeA");
when(mockedSuper.returnB()).thenReturn("fakeB");
when(mockedSuper.returnC()).thenReturn("fakeC");
// mocked is unaffected
assertNull(mocked.returnA());
assertNull(mocked.returnB());
assertNull(mocked.returnC());
// Verify fake values of mockedSuper
assertEquals("fakeA", mockedSuper.returnA());
assertEquals("fakeB", mockedSuper.returnB());
assertEquals("fakeC", mockedSuper.returnC());
// Set fake values for mocked
when(mocked.returnA()).thenReturn("fake2A");
when(mocked.returnB()).thenReturn("fake2B");
when(mocked.returnC()).thenReturn("fake2C");
// Verify fake values of mocked
assertEquals("fake2A", mocked.returnA());
assertEquals("fake2B", mocked.returnB());
assertEquals("fake2C", mocked.returnC());
// non mocked instances are unaffected
assertEquals("superA", nonMocked.returnA());
assertEquals("superB", nonMocked.returnB());
assertEquals("subC", nonMocked.returnC());
assertEquals("superA", nonMockedSuper.returnA());
assertEquals("superB", nonMockedSuper.returnB());
assertEquals("superC", nonMockedSuper.returnC());
}
@Test
public void spySubClass() throws Exception {
SubClass spied = spy(SubClass.class);
SuperClass spiedSuper = spy(SuperClass.class);
SubClass nonSpied = new SubClass();
SuperClass nonSpiedSuper = new SuperClass();
// Spies call real method by default
assertEquals("superA", spied.returnA());
assertEquals("superB", spied.returnB());
assertEquals("subC", spied.returnC());
assertEquals("superA", spiedSuper.returnA());
assertEquals("superB", spiedSuper.returnB());
assertEquals("superC", spiedSuper.returnC());
// Set fake values for spiedSuper
when(spiedSuper.returnA()).thenReturn("fakeA");
when(spiedSuper.returnB()).thenReturn("fakeB");
when(spiedSuper.returnC()).thenReturn("fakeC");
// spied is unaffected
assertEquals("superA", spied.returnA());
assertEquals("superB", spied.returnB());
assertEquals("subC", spied.returnC());
// Verify fake values of spiedSuper
assertEquals("fakeA", spiedSuper.returnA());
assertEquals("fakeB", spiedSuper.returnB());
assertEquals("fakeC", spiedSuper.returnC());
// Set fake values for spied
when(spied.returnA()).thenReturn("fake2A");
when(spied.returnB()).thenReturn("fake2B");
when(spied.returnC()).thenReturn("fake2C");
// Verify fake values of spied
assertEquals("fake2A", spied.returnA());
assertEquals("fake2B", spied.returnB());
assertEquals("fake2C", spied.returnC());
// non spied instances are unaffected
assertEquals("superA", nonSpied.returnA());
assertEquals("superB", nonSpied.returnB());
assertEquals("subC", nonSpied.returnC());
assertEquals("superA", nonSpiedSuper.returnA());
assertEquals("superB", nonSpiedSuper.returnB());
assertEquals("superC", nonSpiedSuper.returnC());
}
}
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