将 Espresso 添加到项目时出现 Mockito 异常

Question

我在我的项目中成功地使用了 Mockito，然后我决定添加一些 Espresso 测试（如此处所述：https://developer.android.com/training/testing/ui-testing/espresso-testing.html#build）但我被卡住了 - 当我将 espresso 添加到我的 build.gradle 并且我在使用 Mockito 时遇到问题。

当 Mockito 工作正常时，我在 build.gradle 中的依赖项，例如我使用 Mockito 的测试通过了：

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.4.0'
    testCompile 'junit:junit:4.12'
    //Mockito framework
    testCompile 'org.mockito:mockito-core:1.10.19'
    // https://mvnrepository.com/artifact/org.powermock/powermock-module-junit4
    testCompile group: 'org.powermock', name: 'powermock-module-junit4', version: '1.6.4'
    testCompile 'org.powermock:powermock-api-mockito:1.5.5'
    androidTestCompile ('com.android.support:support-annotations:23.4.0')
    //androidTestCompile ('com.android.support.test.espresso:espresso-core:2.2.2')
}

当我取消注释最后一行以包含 com.android.support.test.espresso:espresso-core:2.2.2 并且我再次运行我的测试时，其中一些出现以下错误：

java.lang.IllegalAccessError: class org.mockito.internal.creation.jmock.ClassImposterizer cannot access its superclass org.mockito.internal.creation.cglib.MockitoNamingPolicy

    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access0(URLClassLoader.java:71)
    at java.net.URLClassLoader.run(URLClassLoader.java:361)
    at java.net.URLClassLoader.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at org.mockito.internal.creation.jmock.ClassImposterizer.<clinit>(ClassImposterizer.java:38)
    at org.mockito.internal.creation.CglibMockMaker.createMock(CglibMockMaker.java:23)
    at org.powermock.api.mockito.internal.mockmaker.PowerMockMaker.createMock(PowerMockMaker.java:43)
    at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:33)
    at org.mockito.internal.MockitoCore.mock(MockitoCore.java:59)
    at org.mockito.Mockito.spy(Mockito.java:1368)
    at todolistj.todolist.unittest.CustomClass.size(CustomClass.java:54)

所有失败的测试都在 Mockito.spy 或 Mockito.mock 方法上失败。类似于：

CustomClass1 li1 = Mockito.spy(new CustomClass1(somevar));

或

View vm= Mockito.mock(View.class);

如有任何帮助，我们将不胜感激！

Answer 1

Mockito 没有问题，但 Powermock 有问题，这取决于 Mockito 的旧版本。

更新此库依赖项或从 Powermock gradle 依赖项中排除 mockito。

将 Espresso 添加到项目时出现 Mockito 异常

Mockito exception when Espresso added to project

testing

android

mockito

android-espresso