如何使用Mockito和dexmaker进行Android测试？

Question

我正在尝试让Mockito (1.9.5 rc1)在我的安卓测试中工作(使用Robotium)。为了让它在DVM上运行，我将dexmaker.jar和dexmaker mockito.jar(v0.9)放在测试项目的类路径中。

在Eclipse中运行以下测试作为Android JUnit测试：

package com.stampay.pos.test;

import roboguice.RoboGuice;
import android.app.Application;

import com.jayway.android.robotium.solo.Solo;
import com.stampay.pos.activities.HomeActivity;
import com.stampay.pos.model.Consumer;
import com.stampay.pos.util.ScannerAndroid;

import static org.mockito.Mockito.*;

public class HomeActivityTest extends ActivityTest<HomeActivity> {
    private Solo solo;
    Application app;

    public HomeActivityTest() {
        super(HomeActivity.class);

    }

    @Override
    public void setUp() throws Exception {
        solo = new Solo(getInstrumentation(), getActivity());
    }

    @Override
    public void tearDown() throws Exception {
        solo.finishOpenedActivities();
        RoboGuice.util.reset();
    }

    public void testScan() throws Exception {

        ScannerAndroid scanner = (ScannerAndroid) getActivity().getScannerHelper();

        Consumer mockConsumer = mock(Consumer.class);

        //scanner.generateResult("consumer1");
    }
}

我得到了下面的堆栈跟踪：

java.lang.ExceptionInInitializerError
at com.stampay.pos.test.HomeActivityTest.testScan(HomeActivityTest.java:41)
at java.lang.reflect.Method.invokeNative(Native Method)
at android.test.InstrumentationTestCase.runMethod(InstrumentationTestCase.java:214)
at android.test.InstrumentationTestCase.runTest(InstrumentationTestCase.java:199)
at android.test.ActivityInstrumentationTestCase2.runTest(ActivityInstrumentationTestCase2.java:192)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:190)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:175)
at android.test.InstrumentationTestRunner.onStart(InstrumentationTestRunner.java:555)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1584)
Caused by: java.lang.ExceptionInInitializerError
at org.mockito.internal.MockitoCore.<init>(MockitoCore.java:40)
at org.mockito.Mockito.<clinit>(Mockito.java:932)
... 15 more
Caused by: java.lang.ExceptionInInitializerError
at org.mockito.internal.util.MockUtil.<clinit>(MockUtil.java:21)
... 17 more
Caused by: org.mockito.exceptions.misusing.MockitoConfigurationException: Failed to load interface org.mockito.plugins.MockMaker using jar:file:/data/app/com.stampay.pos.test-2.apk!/mockito-extensions/org.mockito.plugins.MockMaker
... 15 more
Caused by: java.lang.ClassNotFoundException: com.google.dexmaker.mockito.DexmakerMockMaker
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at org.mockito.internal.configuration.ClassPathLoader.loadImplementations(ClassPathLoader.java:133)
at org.mockito.internal.configuration.ClassPathLoader.findPlatformMockMaker(ClassPathLoader.java:102)
at org.mockito.internal.configuration.ClassPathLoader.<clinit>(ClassPathLoader.java:61)
at org.mockito.internal.util.MockUtil.<clinit>(MockUtil.java:21)
at org.mockito.internal.MockitoCore.<init>(MockitoCore.java:40)
at org.mockito.Mockito.<clinit>(Mockito.java:932)
... 15 more

有什么建议吗？http://code.google.com/p/dexmaker/和http://code.google.com/p/mockito/wiki/ReleaseNotes没有提供任何有用的信息。

这里似乎报告了一个类似的问题：http://www.paulbutcher.com/2012/05/mockito-on-android-step-by-step/#comment-65955

更新:使用来自https://github.com/paulbutcher/mockito-on-android/tree/master/WarehouseManagerTest/libs的.jar文件，所有工作都很顺利，尽管他使用的是基于1.9.1的过时快照

Answer 1

我在尝试使用mockito 1.9.5-rc1时遇到了同样的问题。

RC1显然不能对此进行裁剪，在dexmaker页面上使用notes that you need 1.9.5+。Mockito 1.9.5 appears to have just been released days ago，所以它应该很快就会出现在Maven Central中。

在此期间，您可以使用download the 1.9.5 zip from Mockito's site。如果您正在使用Maven，您可以使用mvn install:install-file手动将这些jars安装到您的本地存储库。我还检查了最新的Mockito源代码(未发布1.9.8)，构建并安装到我本地的Maven代码库，从而使其正常工作。