使用带有PowerMock的Gradle测试夹具的java

Question

我正在使用PowerMock验证Gradle任务中对JavaCC的静态调用

在我的@Before注释方法中（顺便说一句，我使用的是JUnit4和Mockito），我有：

Project project = ProjectBuilder.builder().build();

当我在这个类中运行任何带有注释的测试用例时

@RunWith(PowerMockRunner.class)

我得到以下信息：

java.lang.NoClassDefFoundError: Could not initialize class org.gradle.testfixtures.internal.ProjectBuilderImpl
at org.gradle.testfixtures.ProjectBuilder.<init>(ProjectBuilder.java:46)
at org.gradle.testfixtures.ProjectBuilder.builder(ProjectBuilder.java:54)
at ca.coglinc.gradle.plugins.javacc.CompileJavaccTaskTest.setUp(CompileJavaccTaskTest.java:43)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.internal.runners.MethodRoadie.runBefores(MethodRoadie.java:132)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:95)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:127)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:86)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:33)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:45)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:122)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:104)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:53)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

我认为我缺少测试类路径上的Gradle运行时配置，但找不到如何修复它。除去PowerMockRunner，我的测试可以正确运行，但是我不能有一个依赖于PowerMock的测试（我知道这些东西应该是可以测试的，而不需要PowerMock，但是我没有编写JavaCC，并且仍然希望验证它是用一些参数调用的）。有什么想法吗

Answer 1

这answer真是恰到好处！我无法让PowerMockRunner与PojectBuilderImpl一起工作，但至少现在我知道了原因。我试着抑制静态初始值设定项，但后来各种各样的东西都坏了。我最终放弃了单元测试代码这一小部分的想法，转而依靠验收测试

请注意，Opal的答案是有效的，但我不想将useTestNG（）添加到我的构建文件中，因为我实际上并没有使用它。这对我来说太违反直觉了

Answer 2

您需要修改<；根>/插件/构建。渐变，变化：

test {
    maxParallelForks = 10
    forkEvery = 50
}

致：

test {
    useTestNG()
    maxParallelForks = 10
    forkEvery = 50
}

似乎应该使用TestNG来运行测试