我在Eclipse中使用Android Maven集成和Robolectric进行了一些测试。使用Maven surefire插件运行Robolectric测试时获取ClassNotFoundException
当我在Eclipse中部署它们时,测试运行良好。但是,当我尝试使用Maven“安装”目标(这实际上是我在本地Maven存储库中需要的库)构建项目时,它在这些相同的测试中失败。
日志显示以下错误:
testAll((package).MyTest) Time elapsed: 0.006 sec <<< ERROR!
java.lang.RuntimeException: java.lang.ClassNotFoundException: caught an exception while obtaining a class file for (package).R
at com.xtremelabs.robolectric.RobolectricTestRunner.createResourceLoader(RobolectricTestRunner.java:316)
at com.xtremelabs.robolectric.RobolectricTestRunner.setupApplicationState(RobolectricTestRunner.java:270)
at com.xtremelabs.robolectric.RobolectricTestRunner.internalBeforeTest(RobolectricTestRunner.java:221)
at com.xtremelabs.robolectric.RobolectricTestRunner.methodBlock(RobolectricTestRunner.java:201)
at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:59)
at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:120)
at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:103)
at org.apache.maven.surefire.Surefire.run(Surefire.java:169)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:350)
at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1021)
Caused by: java.lang.ClassNotFoundException: caught an exception while obtaining a class file for (package).R
at javassist.Loader.findClass(Loader.java:359)
at com.xtremelabs.robolectric.bytecode.RobolectricClassLoader.findClass(RobolectricClassLoader.java:60)
at javassist.Loader.loadClass(Loader.java:311)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at com.xtremelabs.robolectric.bytecode.RobolectricClassLoader.loadClass(RobolectricClassLoader.java:37)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at com.xtremelabs.robolectric.RobolectricTestRunner.createResourceLoader(RobolectricTestRunner.java:312)
... 22 more
Caused by: com.xtremelabs.robolectric.bytecode.IgnorableClassNotFoundException: msg because of javassist.NotFoundException: (package).R
at com.xtremelabs.robolectric.bytecode.AndroidTranslator.onLoad(AndroidTranslator.java:80)
at javassist.Loader.findClass(Loader.java:340)
... 29 more
其中(包)当然是我的主软件包的名称。这里是我的POM的相关章节:
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>2.1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.pivotallabs</groupId>
<artifactId>robolectric</artifactId>
<version>0.9.8</version>
<type>jar</type>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
<version>1.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<defaultGoal>package</defaultGoal>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>maven-android-plugin</artifactId>
<version>2.8.3</version>
<configuration>
<genDirectory>${project.basedir}/gen</genDirectory>
<androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
<assetsDirectory>${project.basedir}/assets</assetsDirectory>
<resourceDirectory>${project.basedir}/res</resourceDirectory>
<nativeLibrariesDirectory>${project.basedir}/src/main/native</nativeLibrariesDirectory>
<sdk>
<platform>7</platform>
</sdk>
<deleteConflictingFiles>true</deleteConflictingFiles>
<undeployBeforeDeploy>true</undeployBeforeDeploy>
</configuration>
<extensions>true</extensions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.6</version>
<configuration>
<excludes>
<exclude>**/Test*.java</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.8</version>
</plugin>
</plugins>
</build>
正如你所看到的,我已经尝试添加“genDirectory”选项Maven的Android插件。但无济于事。
我错过了什么让surefire插件“看”R类?
还有一件事:R类实际上没有被我的代码引用。
你是什么意思“安装”目标? Eclipse具有用于执行应用程序的运行和调试模式。安装由Android SDK处理。如果您特意从Maven/Robolectric代码中获取错误,请确保将它们包含在构建路径中。 – Codeman
“安装”目标是特定于Maven的操作 - 它将您的项目添加到本地Maven存储库(该项目实际上是一个库)。换句话说 - 这是独立于Eclipse运行周期的东西。我会在这方面编辑我的问题,使之更清晰。 –
R.java类是由Android编译的 - 您不应该在Android项目之外引用它,特别是,您不能在没有活动引用的情况下引用它。 – Codeman