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SpyOnInjectedFieldsHandler.java
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SpyOnInjectedFieldsHandler.java
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/*
* Copyright (c) 2007 Mockito contributors
* This program is made available under the terms of the MIT License.
*/
package org.mockito.internal.configuration.injection;
import static org.mockito.Mockito.withSettings;
import java.lang.reflect.Field;
import java.util.Set;
import org.mockito.Mockito;
import org.mockito.Spy;
import org.mockito.exceptions.base.MockitoException;
import org.mockito.internal.configuration.plugins.Plugins;
import org.mockito.internal.util.MockUtil;
import org.mockito.internal.util.reflection.FieldReader;
import org.mockito.plugins.MemberAccessor;
/**
* Handler for field annotated with @InjectMocks and @Spy.
*
* <p>
* The handler assumes that field initialization AND injection already happened.
* So if the field is still null, then nothing will happen there.
* </p>
*/
public class SpyOnInjectedFieldsHandler extends MockInjectionStrategy {
private final MemberAccessor accessor = Plugins.getMemberAccessor();
@Override
protected boolean processInjection(Field field, Object fieldOwner, Set<Object> mockCandidates) {
FieldReader fieldReader = new FieldReader(fieldOwner, field);
// TODO refactor : code duplicated in SpyAnnotationEngine
if (!fieldReader.isNull() && field.isAnnotationPresent(Spy.class)) {
try {
Object instance = fieldReader.read();
if (MockUtil.isMock(instance)) {
// A. instance has been spied earlier
// B. protect against multiple use of MockitoAnnotations.openMocks()
Mockito.reset(instance);
} else {
// TODO: Add mockMaker option for @Spy annotation (#2740)
Object mock =
Mockito.mock(
instance.getClass(),
withSettings()
.spiedInstance(instance)
.defaultAnswer(Mockito.CALLS_REAL_METHODS)
.name(field.getName()));
accessor.set(field, fieldOwner, mock);
}
} catch (Exception e) {
throw new MockitoException("Problems initiating spied field " + field.getName(), e);
}
}
return false;
}
}