org.codehaus.groovy.vmplugin.v5.JUnit4Utils Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.codehaus.groovy.vmplugin.v5;
// TODO M12N move this to groovy-test
import groovy.lang.GroovyClassLoader;
import groovy.lang.GroovyRuntimeException;
import org.codehaus.groovy.runtime.InvokerHelper;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.List;
/**
* Java 5 code for working with JUnit 4 tests.
*/
public class JUnit4Utils {
/**
* Utility method to check via reflection if the parsed class appears to be a JUnit4 test.
*
* @param scriptClass the class we want to check
* @param loader the GroovyClassLoader to use to find classes
* @return true if the class appears to be a test
*/
static Boolean realIsJUnit4Test(Class scriptClass, GroovyClassLoader loader) {
// check if there are appropriate class or method annotations
// that suggest we have a JUnit 4 test
boolean isTest = false;
try {
try {
Class runWithAnnotationClass = loader.loadClass("org.junit.runner.RunWith");
Annotation annotation = scriptClass.getAnnotation(runWithAnnotationClass);
if (annotation != null) {
isTest = true;
} else {
Class testAnnotationClass = loader.loadClass("org.junit.Test");
Method[] methods = scriptClass.getMethods();
for (int i = 0; i < methods.length; i++) {
Method method = methods[i];
annotation = method.getAnnotation(testAnnotationClass);
if (annotation != null) {
isTest = true;
break;
}
}
}
} catch (ClassNotFoundException e) {
// fall through
}
} catch (Throwable e) {
// fall through
}
return isTest ? Boolean.TRUE : Boolean.FALSE;
}
/**
* Utility method to run a JUnit4 test.
*
* @param scriptClass the class we want to run as a test
* @return the result of running the test
*/
static Object realRunJUnit4Test(Class scriptClass, GroovyClassLoader loader) {
// invoke through reflection to eliminate mandatory JUnit 4 jar dependency
try {
Class junitCoreClass = loader.loadClass("org.junit.runner.JUnitCore");
Object result = InvokerHelper.invokeStaticMethod(junitCoreClass,
"runClasses", new Object[]{scriptClass});
System.out.print("JUnit 4 Runner, Tests: " + InvokerHelper.getProperty(result, "runCount"));
System.out.print(", Failures: " + InvokerHelper.getProperty(result, "failureCount"));
System.out.println(", Time: " + InvokerHelper.getProperty(result, "runTime"));
List failures = (List) InvokerHelper.getProperty(result, "failures");
for (int i = 0; i < failures.size(); i++) {
Object f = failures.get(i);
System.out.println("Test Failure: " + InvokerHelper.getProperty(f, "description"));
System.out.println(InvokerHelper.getProperty(f, "trace"));
}
return result;
} catch (ClassNotFoundException e) {
throw new GroovyRuntimeException("Error running JUnit 4 test.", e);
}
}
}