我对mockito和powermock有意见，我可以用final static方法模拟一个抽象类，没有任何问题。当我试图用WebIServerSession模拟一个接口时，我得到了下面的stacktrace。我看了一下powermock github repo中的其他问题，它似乎与jvm版本有关。我已经升级到最新的1.8 java版本，如https://github.com/mockito/mockito/issues/636所述我仍然得到同样的错误。这可能与Powermock与Mockito 2的兼容性有关吗？

import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.testng.PowerMockTestCase;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.when;
import static org.powermock.api.mockito.PowerMockito.doReturn;
import static org.powermock.api.mockito.PowerMockito.mock;
import static org.powermock.api.mockito.PowerMockito.mockStatic;
import static org.powermock.api.mockito.PowerMockito.spy;
import static org.powermock.api.mockito.PowerMockito.verifyPrivate;
import static org.powermock.api.mockito.PowerMockito.whenNew;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;

@BeforeMethod
public void setup() throws Exception {
    mockStatic(ResourceBundle.class);
    mockStatic(WebObjectsFactory.class);
    WebObjectsFactory webObjectsFactory = mock(WebObjectsFactory.class);
    WebIServerSession webIServerSession = mock(WebIServerSession.class);

    PowerMockito.when(WebObjectsFactory.getInstance()).thenReturn(webObjectsFactory);
    PowerMockito.when(webObjectsFactory.getIServerSession()).thenReturn(webIServerSession);
    whenNew(ThreadLocal.class).withNoArguments().thenReturn(errorContainer);

    MockitoAnnotations.initMocks(this);
}

@Test
public void shouldBeTrue() {
    assertTrue(true);
}

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Maven依赖项：

<dependencies>
    <dependency>
        <groupId>org.testng</groupId>
        <artifactId>testng</artifactId>
        <version>6.14.3</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-core</artifactId>
        <version>2.8.9</version>
    </dependency>
    <dependency>
        <groupId>org.powermock</groupId>
        <artifactId>powermock-core</artifactId>
        <version>1.7.4</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.powermock</groupId>
        <artifactId>powermock-module-testng</artifactId>
        <version>1.7.4</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.powermock</groupId>
        <artifactId>powermock-api-mockito2</artifactId>
        <version>1.7.4</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.powermock</groupId>
        <artifactId>powermock-reflect</artifactId>
        <version>1.7.4</version>
        <scope>test</scope>
    </dependency>
</dependencies>

型
Stacktrace：

org.mockito.exceptions.base.MockitoException: 
Mockito cannot mock this class: interface com.microstrategy.web.objects.WebIServerSession.

Mockito can only mock non-private & non-final classes.
If you're not sure why you're getting this error, please report to the mailing list.

Java               : 1.8
JVM vendor name    : Oracle Corporation
JVM vendor version : 25.191-b12
JVM name           : Java HotSpot(TM) 64-Bit Server VM
JVM version        : 1.8.0_191-b12
JVM info           : mixed mode
OS name            : Mac OS X
OS version         : 10.14.1

Underlying exception : java.lang.IllegalArgumentException: Could not create type

    at com.myproject.SSOESMTest.setup(SSOESMTest.java:63)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
    at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:59)
    at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:458)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:222)
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:523)
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:719)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:989)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
    at org.testng.TestRunner.privateRun(TestRunner.java:648)
    at org.testng.TestRunner.run(TestRunner.java:505)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
    at org.testng.SuiteRunner.run(SuiteRunner.java:364)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
    at org.testng.TestNG.runSuites(TestNG.java:1049)
    at org.testng.TestNG.run(TestNG.java:1017)
    at org.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:72)
    at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:123)
Caused by: java.lang.IllegalArgumentException: Could not create type
    at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:154)
    at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:365)
    at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:174)
    at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:376)
    at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator.mockClass(TypeCachingBytecodeGenerator.java:32)
    at org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker.createMockType(SubclassByteBuddyMockMaker.java:71)
    at org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker.createMock(SubclassByteBuddyMockMaker.java:42)
    at org.powermock.api.mockito.mockmaker.PowerMockMaker.createMock(PowerMockMaker.java:50)
    at org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator.createMethodInvocationControl(DefaultMockCreator.java:116)
    at org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator.createMock(DefaultMockCreator.java:69)
    at org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator.mock(DefaultMockCreator.java:46)
    at org.powermock.api.mockito.PowerMockito.mock(PowerMockito.java:138)
    ... 28 more
Caused by: java.lang.NoClassDefFoundError: com/microstrategy/utils/xml/SAXSupport
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    at java.lang.Class.getDeclaredMethods(Class.java:1975)
    at net.bytebuddy.description.method.MethodList$ForLoadedMethods.<init>(MethodList.java:109)
    at net.bytebuddy.description.type.TypeDescription$ForLoadedType.getDeclaredMethods(TypeDescription.java:8426)
    at net.bytebuddy.description.type.TypeDescription$Generic$OfNonGenericType.getDeclaredMethods(TypeDescription.java:3654)
    at net.bytebuddy.dynamic.scaffold.MethodGraph$Compiler$Default.doAnalyze(MethodGraph.java:634)
    at net.bytebuddy.dynamic.scaffold.MethodGraph$Compiler$Default.analyze(MethodGraph.java:596)
    at net.bytebuddy.dynamic.scaffold.MethodGraph$Compiler$Default.doAnalyze(MethodGraph.java:632)
    at net.bytebuddy.dynamic.scaffold.MethodGraph$Compiler$Default.analyze(MethodGraph.java:596)
    at net.bytebuddy.dynamic.scaffold.MethodGraph$Compiler$Default.doAnalyze(MethodGraph.java:632)
    at net.bytebuddy.dynamic.scaffold.MethodGraph$Compiler$Default.analyze(MethodGraph.java:596)
    at net.bytebuddy.dynamic.scaffold.MethodGraph$Compiler$Default.doAnalyze(MethodGraph.java:632)
    at net.bytebuddy.dynamic.scaffold.MethodGraph$Compiler$Default.compile(MethodGraph.java:567)
    at net.bytebuddy.dynamic.scaffold.MethodGraph$Compiler$AbstractBase.compile(MethodGraph.java:465)
    at net.bytebuddy.dynamic.scaffold.MethodRegistry$Default.prepare(MethodRegistry.java:463)
    at net.bytebuddy.dynamic.scaffold.subclass.SubclassDynamicTypeBuilder.make(SubclassDynamicTypeBuilder.java:198)
    at net.bytebuddy.dynamic.scaffold.subclass.SubclassDynamicTypeBuilder.make(SubclassDynamicTypeBuilder.java:189)
    at net.bytebuddy.dynamic.DynamicType$Builder$AbstractBase.make(DynamicType.java:3394)
    at net.bytebuddy.dynamic.DynamicType$Builder$AbstractBase$Delegator.make(DynamicType.java:3583)
    at org.mockito.internal.creation.bytebuddy.SubclassBytecodeGenerator.mockClass(SubclassBytecodeGenerator.java:94)
    at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator$1.call(TypeCachingBytecodeGenerator.java:37)
    at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator$1.call(TypeCachingBytecodeGenerator.java:34)
    at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:152)
    ... 39 more
Caused by: java.lang.ClassNotFoundException: com.microstrategy.utils.xml.SAXSupport
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(MockClassLoader.java:202)
    at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass1(DeferSupportingClassLoader.java:89)
    at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:79)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 63 more

Test ignored.

===============================================
Default Suite
Total tests run: 1, Failures: 0, Skips: 1
Configuration Failures: 1, Skips: 2
===============================================

Process finished with exit code 0

型

当我尝试模拟一个非公共接口时，我也遇到了这个问题，错误消息没有意义，因为我在另一个套件中的所有测试在模拟同一个接口时都正确通过了。
在我的例子中，我不得不降级Mockito Core库并再次恢复它以使其工作。下面是我采取的步骤：
1.在模块级build.gradle文件条目中找到Mockito Core依赖项：

testImplementation 'org.mockito:mockito-core:2.25.0'

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1.降级到另一个有效的版本，在我的例子2.23.0中：

testImplementation 'org.mockito:mockito-core:2.23.0'

型
1.执行Gradle同步并等待完成
1.将Mockito Core依赖恢复到之前的版本（或更新版本）：

testImplementation 'org.mockito:mockito-core:2.25.0'

型
1.再次同步项目
1.再次运行测试

9条答案

按热度按时间

pw9qyyiw1#

由于使用的Mockito版本，最有可能发生异常。
尝试用下面的依赖项替换当前版本的mockito-core。

<dependency>
    <groupId>org.mockito</groupId>
    <artifactId>mockito-core</artifactId>
    <version>2.22.0</version>
    <scope>test</scope>
</dependency>

字符串
忽略pom.xml中重写托管版本的警告

赞(0）回复(0）举报 2023-11-18

h4cxqtbf2#

确保你的接口可见性是公开的。
我不确定这将是在你的情况下的解决方案.我得到了同样的问题，当我在Android Studio测试.
我的解决方案是将核心-mockito替换为

androidTestImplementation "org.mockito:mockito-android:2.25.0"

字符串
然后它开始完美地工作。
这可能是那些谁是测试Android Studio和有同样的问题的解决方案。

muk1a3rh3#

添加

@RunWith(MockitoJUnitRunner.class)

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yc0p9oo04#

我也有类似的问题。我惊讶地发现：
第一个月
这只是当我在我的IDE（IntelliJ Idea）中运行我的测试时。如果我试图通过maven命令运行它-它通过了。为了使测试在IntelliJ Idea中工作，我只是改变了配置：将Shorten command line设置为JAR manifest。

slmsl1lt5#

zbsbpyhn6#

这很奇怪，但在build.gradle文件中添加下面的行后，它对我有效

androidTestImplementation "org.mockito:mockito-android:$mockitoAndroid"

omhiaaxx7#

我也有这个问题，通过使用IDEA，最后选择缩短命令行：“清单”解决

cedebl8k8#

在我的情况下，它是接口，我是嘲笑使用Mockito库。
在添加了下面的依赖项之后，我能够正确地模拟和测试。
第一个月
mockito-inline - moreInfo

jchrr9hc9#

像这样注解测试类

@RunWith(PowerMockRunner.class)
@PrepareForTest({ResourceBundle.class, WebObjectsFactory.class, AnyOtherClassThatContainsStaticMethod.class, . . .})

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Ref：https://github.com/powermock/powermock/wiki/mockstatic

Mockito无法模拟此类：接口

9条答案

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