org.powermock.modules.testng.internal.PowerMockTestNGMethodHandler Maven / Gradle / Ivy
/*
* Copyright 2009 the original author or authors.
*
* 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.powermock.modules.testng.internal;
import javassist.util.proxy.MethodHandler;
import org.powermock.core.MockRepository;
import org.powermock.reflect.Whitebox;
import org.testng.annotations.Test;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Set;
/*
* Javassist handler that takes care of cleaning up {@link MockRepository} state
* after each method annotated with {@link Test}.
*/
public class PowerMockTestNGMethodHandler implements MethodHandler {
private Object annotationEnabler;
public PowerMockTestNGMethodHandler(Class testClass) {
try {
Class annotationEnablerClass = Class.forName("org.powermock.api.extension.listener.AnnotationEnabler");
annotationEnabler = Whitebox.newInstance(annotationEnablerClass);
} catch (ClassNotFoundException e) {
annotationEnabler = null;
}
}
@Override
public Object invoke(Object self, Method thisMethod, Method proceed, Object[] args) throws Throwable {
injectMocksUsingAnnotationEnabler(self);
try {
final Object result = proceed.invoke(self, args);
return result;
} catch (InvocationTargetException e) {
throw e.getTargetException();
}
finally
{
if (thisMethod.isAnnotationPresent(Test.class)) {
clearMockFields();
MockRepository.clear();
}
}
}
private void clearMockFields() throws Exception, IllegalAccessException {
if (annotationEnabler != null) {
Set mockFields = Whitebox.getFieldsAnnotatedWith(this, Whitebox
.[]> invokeMethod(annotationEnabler, "getMockAnnotations"));
for (Field field : mockFields) {
field.set(this, null);
}
}
}
private void injectMocksUsingAnnotationEnabler(Object self) throws Exception {
if (annotationEnabler != null) {
Whitebox.invokeMethod(annotationEnabler, "beforeTestMethod", new Class[] { Object.class, Method.class,
Object[].class }, self, null, null);
}
}
}