/*
* Copyright 2010 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.gradle.api.internal.tasks.testing.junit;
import junit.framework.JUnit4TestAdapter;
import junit.framework.Test;
import junit.framework.TestListener;
import junit.framework.TestResult;
import org.gradle.api.internal.tasks.testing.*;
import org.gradle.util.IdGenerator;
import org.gradle.util.TimeProvider;
import org.junit.runner.Describable;
import org.junit.runner.Description;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class JUnitTestClassExecuter {
private final ClassLoader applicationClassLoader;
private final TestListener listener;
private final TestResultProcessor resultProcessor;
private final IdGenerator<?> idGenerator;
private final TimeProvider timeProvider;
public JUnitTestClassExecuter(ClassLoader applicationClassLoader, TestListener listener, TestResultProcessor resultProcessor, IdGenerator<?> idGenerator, TimeProvider timeProvider) {
this.applicationClassLoader = applicationClassLoader;
this.listener = listener;
this.resultProcessor = resultProcessor;
this.idGenerator = idGenerator;
this.timeProvider = timeProvider;
}
public void execute(String testClassName) {
TestDescriptorInternal testInternal = new DefaultTestClassDescriptor(idGenerator.generateId(), testClassName);
resultProcessor.started(testInternal, new TestStartEvent(timeProvider.getCurrentTime()));
Test adapter = createTest(testClassName);
TestResult result = new TestResult();
result.addListener(listener);
adapter.run(result);
resultProcessor.completed(testInternal.getId(), new TestCompleteEvent(timeProvider.getCurrentTime()));
}
private Test createTest(String testClassName) {
Class<?> testClass;
try {
testClass = Class.forName(testClassName, true, applicationClassLoader);
// Look for a static suite method
try {
Method suiteMethod = testClass.getMethod("suite", new Class[0]);
return (Test) suiteMethod.invoke(null);
} catch (NoSuchMethodException e) {
// Ignore
} catch (InvocationTargetException e) {
return new BrokenTest(Description.createTestDescription(testClass, "suite"), e.getCause());
}
} catch (Throwable e) {
return new BrokenTest(
Description.createSuiteDescription(String.format("initializationError(%s)", testClassName)), e);
}
return new JUnit4TestAdapter(testClass);
}
private static class BrokenTest implements Test, Describable {
private final Throwable failure;
private final Description description;
public BrokenTest(Description description, Throwable failure) {
this.failure = failure;
this.description = description;
}
public Description getDescription() {
return description;
}
public int countTestCases() {
return 1;
}
public void run(TestResult result) {
result.startTest(this);
result.addError(this, failure);
result.endTest(this);
}
}
}