/*
* Copyright 2002-2009 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.springframework.test.context.junit4.statements;
import java.util.concurrent.TimeoutException;
import org.junit.runners.model.Statement;
import org.springframework.test.annotation.Timed;
/**
* <code>SpringFailOnTimeout</code> is a custom JUnit 4.5+ {@link Statement}
* which adds support for Spring's {@link Timed @Timed} annotation by throwing
* an exception if the next statement in the execution chain takes more than the
* specified number of milliseconds.
*
* @see #evaluate()
* @author Sam Brannen
* @since 3.0
*/
public class SpringFailOnTimeout extends Statement {
private final Statement next;
private final long timeout;
/**
* Constructs a new <code>SpringFailOnTimeout</code> statement.
*
* @param next the next <code>Statement</code> in the execution chain
* @param timeout the configured <code>timeout</code> for the current test
* @see Timed#millis()
*/
public SpringFailOnTimeout(Statement next, long timeout) {
this.next = next;
this.timeout = timeout;
}
/**
* Invokes the next {@link Statement statement} in the execution chain
* (typically an instance of
* {@link org.junit.internal.runners.statements.InvokeMethod InvokeMethod}
* or {@link org.junit.internal.runners.statements.ExpectException
* ExpectException}) and throws an exception if the next
* <code>statement</code> takes more than the specified <code>timeout</code>
* .
*/
@Override
public void evaluate() throws Throwable {
long startTime = System.currentTimeMillis();
try {
this.next.evaluate();
}
finally {
long elapsed = System.currentTimeMillis() - startTime;
if (elapsed > this.timeout) {
throw new TimeoutException(String.format("Test took %s ms; limit was %s ms.", elapsed, this.timeout));
}
}
}
}
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