几周前我做了一些修改,可以满足您的需求。我意识到,在单元测试运行的情况下由 Eclipse 执行的 java 命令总是在其名称中包含一个包。因此,如果这返回 true,那么您可能正在 Eclipse 下运行测试:
System.getProperty( "sun.java.command" ).contains( "org.eclipse.jdt" )
我知道,它不是 100% 的解决方案,但通常有效,而且总比没有好。
我为您创建并测试了一个 Runner+Annotation 对:
注释:
package org.junit.annotation;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.junit.runner.Runner;
import org.junit.runners.JUnit4;
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Target( ElementType.TYPE )
public @interface RunWithInEnvironment {
Class<? extends Runner> eclipse();
Class<? extends Runner> defaultRunner() default JUnit4.class;
}
默认情况下,它使用 JUnit4 作为 defaultrunner,这实际上是 JUnit4 的默认值。
Runner,它使用注解的信息:
package org.junit.runners;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import org.junit.annotation.RunWithInEnvironment;
import org.junit.runner.Description;
import org.junit.runner.Runner;
import org.junit.runner.notification.RunNotifier;
public class EnvironmentDependentRunner extends Runner {
protected Class<?> testClass;
protected Runner delegate;
public EnvironmentDependentRunner(Class<?> testClass) {
super();
this.testClass = testClass;
RunWithInEnvironment annotation = findAnnotationInClassHierarchy(testClass);
assertNotNull( EnvironmentDependentRunner.class.getSimpleName() + " can be used only with test classes, that are annotated with " + RunWithInEnvironment.class.getSimpleName() + " annotation somewhere in their class hierarchy!", annotation );
Class<? extends Runner> delegateClass = null;
if ( System.getProperty( "sun.java.command" ).contains( "org.eclipse.jdt" ) && annotation.eclipse() != null ) {
delegateClass = annotation.eclipse();
}
else {
delegateClass = annotation.defaultRunner();
}
try {
Constructor<? extends Runner> constructor = delegateClass.getConstructor( Class.class );
delegate = constructor.newInstance(testClass);
} catch (NoSuchMethodException e) {
fail( delegateClass.getName() + " must contain a public constructor with a " + Class.class.getName() + " argument.");
} catch (SecurityException e) {
throw new RuntimeException("SecurityException during instantiation of " + delegateClass.getName() );
} catch (InstantiationException e) {
throw new RuntimeException("Error while creating " + delegateClass.getName() );
} catch (IllegalAccessException e) {
throw new RuntimeException("Error while creating " + delegateClass.getName() );
} catch (IllegalArgumentException e) {
throw new RuntimeException("Error while creating " + delegateClass.getName() );
} catch (InvocationTargetException e) {
throw new RuntimeException("Error while creating " + delegateClass.getName() );
}
}
private RunWithInEnvironment findAnnotationInClassHierarchy(Class<?> testClass) {
RunWithInEnvironment annotation = testClass.getAnnotation(RunWithInEnvironment.class);
if (annotation != null) {
return annotation;
}
Class<?> superClass = testClass.getSuperclass();
if (superClass != null) {
return findAnnotationInClassHierarchy(superClass);
}
return null;
}
@Override
public Description getDescription() {
return delegate.getDescription();
}
@Override
public void run(RunNotifier arg0) {
delegate.run(arg0);
}
}
还有一个用法示例:
@RunWithInEnvironment( eclipse=JUnit4.class, defaultRunner=Parameterized.class)
@RunWith( EnvironmentDependentRunner.class)
public class FooTest {
...
}
所以这个测试将在 Eclipse 中使用 JUnit4 运行器运行,在 Eclipse 外部使用 Parameterized。