/*
* Copyright 2014 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.springframework.data.repository.invoker;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.List;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.aop.framework.ProxyFactory;
/**
* Utility methods to create {@link RepositoryInvoker} instances that get a verifying proxy attached so that the
* invocation of a given target methods or type can be verified.
*
* @author Oliver Gierke
*/
class RepositoryInvocationTestUtils {
@SuppressWarnings("unchecked")
public static <T> T getVerifyingRepositoryProxy(T target, VerifyingMethodInterceptor interceptor) {
ProxyFactory factory = new ProxyFactory();
factory.setInterfaces(target.getClass().getInterfaces());
factory.setTarget(target);
factory.addAdvice(interceptor);
return (T) factory.getProxy();
}
public static VerifyingMethodInterceptor expectInvocationOnType(Class<?> type) {
return new VerifyingMethodInterceptor(type, new Method[0]);
}
public static VerifyingMethodInterceptor expectInvocationOf(Method... methods) {
return new VerifyingMethodInterceptor(null, methods);
}
/**
* {@link MethodInterceptor} to verifiy the invocation was triggered on the given type.
*
* @author Oliver Gierke
*/
@SuppressWarnings("rawtypes")
public static final class VerifyingMethodInterceptor implements MethodInterceptor {
private final Class expectedInvocationTarget;
private final List<Method> methods;
private VerifyingMethodInterceptor(Class<?> expectedInvocationTarget, Method... methods) {
this.expectedInvocationTarget = expectedInvocationTarget;
this.methods = Arrays.asList(methods);
}
@Override
public Object invoke(MethodInvocation invocation) throws Throwable {
if (!methods.isEmpty()) {
assertThat(methods, hasItem(invocation.getMethod()));
} else {
Class<?> type = invocation.getMethod().getDeclaringClass();
assertThat("Expected methods invocation on " + expectedInvocationTarget + " but was invoked on " + type + "!",
type, is(equalTo(expectedInvocationTarget)));
}
return invocation.proceed();
}
}
}