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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.testng;
import groovy.lang.GroovyClassLoader;
import groovy.lang.GroovyRuntimeException;
import org.codehaus.groovy.plugin.GroovyRunner;
import org.codehaus.groovy.runtime.InvokerHelper;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
/**
* Integration code for running TestNG tests in Groovy.
*
* @author Paul King
*
*/
public class TestNgRunner implements GroovyRunner {
/**
* Utility method to check via reflection if the parsed class appears to be a TestNG
* test, i.e.&nsbp;checks whether it appears to be using the relevant TestNG annotations.
*
* @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
*/
@SuppressWarnings("unchecked")
public boolean canRun(Class scriptClass, GroovyClassLoader loader) {
char version = System.getProperty("java.version").charAt(2);
if (version < '5') {
return false;
}
// check if there are appropriate class or method annotations
// that suggest we have a TestNG test
boolean isTest = false;
try {
try {
Class testAnnotationClass = loader.loadClass("org.testng.annotations.Test");
Annotation annotation = scriptClass.getAnnotation(testAnnotationClass);
if (annotation != null) {
isTest = true;
} else {
Method[] methods = scriptClass.getMethods();
for (Method method : methods) {
annotation = method.getAnnotation(testAnnotationClass);
if (annotation != null) {
isTest = true;
break;
}
}
}
} catch (ClassNotFoundException e) {
// fall through
}
} catch (Throwable e) {
// fall through
}
return isTest;
}
/**
* Utility method to run a TestNG test.
*
* @param scriptClass the class we want to run as a test
* @param loader the class loader to use
* @return the result of running the test
*/
public Object run(Class scriptClass, GroovyClassLoader loader) {
// invoke through reflection to eliminate mandatory TestNG jar dependency
try {
Class testNGClass = loader.loadClass("org.testng.TestNG");
Object testng = InvokerHelper.invokeConstructorOf(testNGClass, new Object[]{});
InvokerHelper.invokeMethod(testng, "setTestClasses", new Object[]{scriptClass});
Class listenerClass = loader.loadClass("org.testng.TestListenerAdapter");
Object listener = InvokerHelper.invokeConstructorOf(listenerClass, new Object[]{});
InvokerHelper.invokeMethod(testng, "addListener", new Object[]{listener});
return InvokerHelper.invokeMethod(testng, "run", new Object[]{});
} catch (ClassNotFoundException e) {
throw new GroovyRuntimeException("Error running TestNG test.", e);
}
}
}