/*
* Copyright 2002-2016 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.test.context.junit4.statements;
import java.lang.reflect.Method;
import org.junit.runners.model.Statement;
import org.springframework.test.context.TestContextManager;
/**
* {@code RunBeforeTestExecutionCallbacks} is a custom JUnit {@link Statement}
* which allows the <em>Spring TestContext Framework</em> to be plugged into the
* JUnit 4 execution chain by calling {@link TestContextManager#beforeTestExecution
* beforeTestExecution()} on the supplied {@link TestContextManager}.
*
* @author Sam Brannen
* @since 5.0
* @see #evaluate()
* @see RunAfterTestExecutionCallbacks
*/
public class RunBeforeTestExecutionCallbacks extends Statement {
private final Statement next;
private final Object testInstance;
private final Method testMethod;
private final TestContextManager testContextManager;
/**
* Construct a new {@code RunBeforeTestExecutionCallbacks} statement.
* @param next the next {@code Statement} in the execution chain
* @param testInstance the current test instance (never {@code null})
* @param testMethod the test method which is about to be executed on the
* test instance
* @param testContextManager the TestContextManager upon which to call
* {@code beforeTestExecution()}
*/
public RunBeforeTestExecutionCallbacks(Statement next, Object testInstance, Method testMethod,
TestContextManager testContextManager) {
this.next = next;
this.testInstance = testInstance;
this.testMethod = testMethod;
this.testContextManager = testContextManager;
}
/**
* Invoke {@link TestContextManager#beforeTestExecution(Object, Method)}
* and then evaluate the next {@link Statement} in the execution chain
* (typically an instance of
* {@link org.junit.internal.runners.statements.InvokeMethod InvokeMethod}).
*/
@Override
public void evaluate() throws Throwable {
this.testContextManager.beforeTestExecution(this.testInstance, this.testMethod);
this.next.evaluate();
}
}