Question

我有一段使用环境变量的Java代码。代码的行为取决于环境变量的值。我想使用TestNG测试此代码。我有一些使用PowerMocikto模拟环境变量的示例代码，但是我遇到了一个例外。这是我的单元测试文件：

import static org.testng.Assert.assertEquals;   
import org.powermock.api.mockito.PowerMockito;   
import org.powermock.core.classloader.annotations.PrepareForTest;   
import org.testng.IObjectFactory;   
import org.testng.annotations.BeforeClass;   
import org.testng.annotations.ObjectFactory;   
import org.testng.annotations.Test;    

@PrepareForTest(System.class)   
public class SampleTestClass {   
    @BeforeClass   
    public void setup() {   
        PowerMockito.mockStatic(System.class);  
        PowerMockito.when(System.getenv("hello")).thenReturn("world");  
    }

    @Test
    public void test() {
        assertEquals(System.getenv("hello"), "world");
    }

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

}

我有这个例外

FAILED CONFIGURATION: @BeforeClass setup
org.mockito.exceptions.base.MockitoException: 
Cannot mock/spy class java.lang.System
Mockito cannot mock/spy because :
 - final class
    at powerMocito.SampleTestClass.setup(SampleTestClass.java:17)
    at powerMocito.SampleTestClass_$$_jvst6c2_0._d8setup(SampleTestClass_$$_jvst6c2_0.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.powermock.modules.testng.internal.PowerMockTestNGMethodHandler.invoke(PowerMockTestNGMethodHandler.java:50)
    at powerMocito.SampleTestClass_$$_jvst6c2_0.setup(SampleTestClass_$$_jvst6c2_0.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:86)
    at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:514)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:215)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:142)
    at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:178)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
    at org.testng.TestRunner.privateRun(TestRunner.java:782)
    at org.testng.TestRunner.run(TestRunner.java:632)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:366)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:361)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:319)
    at org.testng.SuiteRunner.run(SuiteRunner.java:268)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1244)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1169)
    at org.testng.TestNG.run(TestNG.java:1064)
    at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:113)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:206)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:177)

这是我pom文件中的依赖项

        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-module-testng</artifactId>
            <version>2.0.0</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-api-mockito2</artifactId>
            <version>2.0.0-beta.5</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-core</artifactId>
            <version>2.27.0</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-api-support</artifactId>
            <version>2.0.0</version>
        </dependency>

请帮助我解决此错误。还有其他方法可以使用TestNG测试此问题吗？

如何使用TestNG测试依赖于环境变量的代码？

0 个答案: