相关疑难解决方法(0)

我很难模拟用于仪器 ( Espresso) 测试的静态方法。对于模拟对象，我使用Mockito. 但是，由于Mockito不能模拟静态方法，我在Powermock它之上使用。这适用于在 JVM 机器上运行的测试，但对于 UI 测试，这种组合不起作用。我已经为仪器测试声明了以下依赖项。

androidTestCompile 'org.mockito:mockito-core:1.10.19'
androidTestCompile 'org.powermock:powermock-api-mockito:1.6.5'
androidTestCompile 'org.powermock:powermock-module-junit4:1.6.5' 
androidTestCompile 'com.google.dexmaker:dexmaker:1.2'
androidTestCompile 'com.google.dexmaker:dexmaker-mockito:1.2'
androidTestCompile 'com.android.support.test:runner:0.5'
androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'

我正在编写一个示例测试，如下所示。

@RunWith(PowerMockRunner.class)
@PowerMockRunnerDelegate(AndroidJUnit4.class)

public class SampleTest {

  @Test
  public void test(){
    //Test Code.
  }
}

代码编译成功，但在运行时，它给了我以下异常

java.lang.IllegalStateException: Extension API internal error: org.powermock.api.extension.proxyframework.ProxyFrameworkImpl could not be located in classpath.
at org.powermock.reflect.proxyframework.ProxyFrameworkHelper.register(ProxyFrameworkHelper.java:35)
at org.powermock.reflect.proxyframework.ClassLoaderRegisterProxyFramework.registerProxyframework(ClassLoaderRegisterProxyFramework.java:28)
at org.powermock.tests.utils.impl.AbstractCommonTestSuiteChunkerImpl.registerProxyframework(AbstractCommonTestSuiteChunkerImpl.java:101)
at org.powermock.tests.utils.impl.AbstractCommonTestSuiteChunkerImpl.chunkClass(AbstractCommonTestSuiteChunkerImpl.java:114)
at org.powermock.tests.utils.impl.AbstractCommonTestSuiteChunkerImpl.<init>(AbstractCommonTestSuiteChunkerImpl.java:60)
at org.powermock.tests.utils.impl.AbstractCommonTestSuiteChunkerImpl.<init>(AbstractCommonTestSuiteChunkerImpl.java:54)
at org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl.<init>(AbstractTestSuiteChunkerImpl.java:58)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.<init>(JUnit4TestSuiteChunkerImpl.java:59)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.<init>(AbstractCommonPowerMockRunner.java:32)
at org.powermock.modules.junit4.PowerMockRunner.<init>(PowerMockRunner.java:34)
at java.lang.reflect.Constructor.newInstance(Native …