TestNG与Powermockito失败的静态方法

Question

我想使用TestNG和Powermockito添加单元测试传统的报告生成代码。

import static org.testng.AssertJUnit.assertTrue; 
import static org.powermock.api.support.membermodification.MemberModifier.stub; 
import org.testng.annotations.Test; 
import org.mockito.Matchers; 
import org.mockito.Mockito; 
import org.powermock.api.mockito.PowerMockito; 
import org.powermock.core.classloader.annotations.PrepareForTest; 

@PrepareForTest(ConfigReader.class) 
public class defTest{ 
    @Test 
    public void testGetPartsSuccessful() throws Exception { 
     TrendsReportData reportGenerator = new TrendsReportData(); 

     TreeMap<Calendar, String> t = new TreeMap<Calendar, String>(); 
     Calendar c = Calendar.getInstance(); 
     String b = "234"; 
     t.put(c, b); 
     Properties properties = new Properties(); 

     properties.load(Thread.currentThread().getContextClassLoader().getResourceAsStream("MetricTest.properties")); 
     MetricDAO dao = Mockito.mock(MetricDAO.class); 
     Mockito.when(
          dao.getMetricData(Matchers.anyString(), Matchers.anyString(), 
              Matchers.anyString(), Matchers.any(Calendar.class), 
              Matchers.any(Calendar.class))).thenReturn(t); 
     //stub (PowerMockito.method(ConfigReader.class, "readFile")).toReturn(properties);//line 36 
     PowerMockito.mockStatic(ConfigReader.class); //line 37 
     Mockito.when(ConfigReader.readFile(Matchers.anyString())).thenReturn(properties);//line 38 
     reportGenerator.setMetricDao(dao); 
     reportGenerator.prepareMonthStats(); 
     //assert file here 
    } 
} 

此代码产生以下输出：

[testng] org.mockito.exceptions.misusing.InvalidUseOfMatchersException: 
[testng] Misplaced argument matcher detected here: 
[testng] -> at .....defTest.testGetPartsSuccessful(defTest.java:38) 
[testng] You cannot use argument matchers outside of verification or stubbing. 
. 
. 
. 
[testng] at myclasspackage.myclassname(class_name.java:38) 
[testng] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
[testng] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
[testng] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
[testng] at java.lang.reflect.Method.invoke(Method.java:597) 
[testng] at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80) 
[testng] at org.testng.internal.Invoker.invokeMethod(Invoker.java:691) 
[testng] at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:883) 
[testng] at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1208) 
[testng] at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127) 
[testng] at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111) 
[testng] at org.testng.TestRunner.privateRun(TestRunner.java:753) 
[testng] at org.testng.TestRunner.run(TestRunner.java:613) 
[testng] at org.testng.SuiteRunner.runTest(SuiteRunner.java:334) 
[testng] at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329) 
[testng] at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291) 
[testng] at org.testng.SuiteRunner.run(SuiteRunner.java:240) 
[testng] at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52) 
[testng] at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86) 
[testng] at org.testng.TestNG.runSuitesSequentially(TestNG.java:1137) 
[testng] at org.testng.TestNG.runSuitesLocally(TestNG.java:1062) 
[testng] at org.testng.TestNG.run(TestNG.java:974) 
[testng] at org.testng.TestNG.privateMain(TestNG.java:1282) 
[testng] at org.testng.TestNG.main(TestNG.java:1246) 

如果我注释掉线37和38以及使用线路36代替，它工作正常，但它不产生所需的输出即它不是在嘲笑ConfigReader的静态方法，而是在嘲笑MetricDAO的非静态方法。

我查看了其他类似问题上提供的答案，但都没有成功。请帮忙。

Answer 1

根据PowerMock文档，您的测试等级应从PowerMockTestCase扩展。另外也提及此方法添加到您的测试类：

@ObjectFactory 
public IObjectFactory getObjectFactory() { 
    return new org.powermock.modules.testng.PowerMockObjectFactory(); 
} 

但是，这些变化的工作对我来说:(

所以我切换到JMockit，它正在像一个魅力写在嘲弄。 Mockito和JMockit对静态方法的部分模拟一起工作良好。