在我的测试中有非常奇怪的行为。
public class MyTestclass {
@Before
void setUp(){
//do some setup, but hu i get called twice
//here i do some try catch thing to get the stacktrace...
}
void testOnlyOneTest(){
//make the testing, i get called only once
}
@After
void tearDown(){
//do some destroy things,... i get called twice too
}
}堆栈跟踪：
1)
MyTestClassTest.setUp() line: 85
NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]
NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39
DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25
Method.invoke(Object, Object...) line: 597
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runBefores() line: 129
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runBeforesThenTestThenAfters(Runnable) line: 93
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(Method, Object, Runnable) line: 294
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(Runnable) line: 282
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runTest() line: 84
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).run() line: 49
PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(Method, RunNotifier) line: 207
PowerMockJUnit44RunnerDelegateImpl.runMethods(RunNotifier) line: 146
PowerMockJUnit44RunnerDelegateImpl$1.run() line: 120
ClassRoadie.runUnprotected() line: 34
ClassRoadie.runProtected() line: 44
PowerMockJUnit44RunnerDelegateImpl.run(RunNotifier) line: 118
JUnit4TestSuiteChunkerImpl.run(RunNotifier) line: 102
PowerMockRunner(AbstractCommonPowerMockRunner).run(RunNotifier) line: 53
JUnit4TestClassReference(JUnit4TestReference).run(TestExecution) line: 46
TestExecution.run(ITestReference[]) line: 38
RemoteTestRunner.runTests(String[], String, TestExecution) line: 467
RemoteTestRunner.runTests(TestExecution) line: 683
RemoteTestRunner.run() line: 390
RemoteTestRunner.main(String[]) line: 197
2)
MyTestClassTest.setUp() line: 85
NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]
NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39
DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25
Method.invoke(Object, Object...) line: 597
WhiteboxImpl.performMethodInvocation(Object, Method, Object...) line: 2014
WhiteboxImpl.doInvokeMethod(Object, Class<?>, String, Object...) line: 885
WhiteboxImpl.invokeMethod(Object, String, Object...) line: 713
Whitebox.invokeMethod(Object, String, Object...) line: 401
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod() line: 305
MethodRoadie$2.run() line: 86
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runBeforesThenTestThenAfters(Runnable) line: 94
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(Method, Object, Runnable) line: 294
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(Runnable) line: 282
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runTest() line: 84
PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).run() line: 49
PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(Method, RunNotifier) line: 207
PowerMockJUnit44RunnerDelegateImpl.runMethods(RunNotifier) line: 146
PowerMockJUnit44RunnerDelegateImpl$1.run() line: 120
ClassRoadie.runUnprotected() line: 34
ClassRoadie.runProtected() line: 44
PowerMockJUnit44RunnerDelegateImpl.run(RunNotifier) line: 118
JUnit4TestSuiteChunkerImpl.run(RunNotifier) line: 102
PowerMockRunner(AbstractCommonPowerMockRunner).run(RunNotifier) line: 53
JUnit4TestClassReference(JUnit4TestReference).run(TestExecution) line: 46
TestExecution.run(ITestReference[]) line: 38
RemoteTestRunner.runTests(String[], String, TestExecution) line: 467
RemoteTestRunner.runTests(TestExecution) line: 683
RemoteTestRunner.run() line: 390
RemoteTestRunner.main(String[]) line: 197知道为什么我的设置被调用了两次吗？
我在设置中做了一些模拟，在验证后，我得到了预期的2倍，称为1倍，所以我的测试失败。
我使用的是powermock 1.4.8、junit 4.4和easymock框架
3条答案
按热度按时间odopli941#
你的类扩展了TestCase吗？在这个例子中没有，但是我只是想知道是什么原因导致了这个问题。如果它扩展了，那么它会忽略注解，并且把每一个以test开头的方法都当作一个测试用例，这可能会导致你有比你想象的更多的测试。
nzkunb0c2#
我认为您应该使用
@BeforeClass而不是@Before。@Before在每个使用@Test注解的方法之前运行，而@BeforeClass只在所有@Test方法之前运行一次。w51jfk4q3#
首先，您需要将setup方法设置为“static”。
您不能既扩展TestCase又使用注解，因为它们使用不同的runner。因此，当JUnit看到extends TestCase时，它很可能会使用旧的runner，其中**@Test注解将被忽略**。
您可以在不扩展TestCase的情况下简单地将setup方法设置为静态，并使用@Test注解，这应该按照JUnit 4工作