无法运行android测试套件:线程"main"中存在异常； java.lang.ClassNotFoundException [英] Can't run android test suite: Exception in thread "main" java.lang.ClassNotFoundException

问题描述

我有2个需要在测试套件上运行的测试类，一个是RestaurantModelTest，另一个是CartModelTest.class:

I have 2 test classes that I need to run on a test suite one is RestaurantModelTestthe other is CartModelTest.class:

@Config(sdk = 16, manifest = "src/main/AndroidManifest.xml")
@RunWith(RobolectricTestRunner.class)
public class RestaurantModelTest {

    //setUp code here...

    @Test
    public void testFindByLocation() throws Exception {
         //test code here
    }

}

因此，我在线上关注了一些教程，他们指定使用我要测试的2个类来创建一个类似这样的TestSuite类:

So I followed some tutorials online and they specify to create a TestSuite class like this with my 2 classes to be tested:

import org.junit.runner.RunWith;
import org.junit.runners.Suite;
@RunWith(Suite.class)
@Suite.SuiteClasses({
        RestaurantModelTest.class,
        CartModelTest.class
})
public class ModelsTestSuite {

}

然后我必须创建一个TestSuiteRunner类:

And then I must create a TestSuiteRunner class:

import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;

public class TestSuiteRunner {


    public static void main(String[] args){
        Result result = JUnitCore.runClasses(ModelsTestSuite.class);
        for (Failure failure : result.getFailures()){
            System.out.println(failure.toString());
        }
        System.out.println(result.wasSuccessful());

    }
}

我正在使用android studio，当我讨厌右键单击>运行TestSuiteRunner ... main()时，我会得到Exception in thread "main" java.lang.ClassNotFoundException:

I'm using android studio and when I hate right-click > Run TestSuiteRunner...main() I get Exception in thread "main" java.lang.ClassNotFoundException:

任何帮助都非常感谢！

推荐答案

运行套件中的所有测试所需要做的就是-

All you need to do to run all the tests in suite - is to:

1. 右键单击ModelsTestSuite
2. 点击运行ModelsTestSuite"

就是这样，套件中的所有测试都将执行.您实际上并不需要TestSuiteRunner类:

That's it, all tests in the suite will be executed. You don't really need TestSuiteRunner class for that:

注意！在解决此问题时，我发现了另一个奇怪的问题:除非我禁用了即时运行(首选项->构建，执行，部署->即时运行->在Android Studio 2.0中启用即时运行-取消选中)，我的所有Robolectric测试均失败，并显示java.lang.ClassNotFoundException. jFYI.

NB! While solving this problem, I found another bizarre one: unless I disabled instant run (Preferences -> Build, Execution, Deployment -> Instant Run -> Enable Instant Run - uncheck) in Android Studio 2.0, all my Robolectric tests were failing with java.lang.ClassNotFoundException. jFYI.

得到java.lang.ClassNotFoundException的原因是普通的Java项目和Android项目不兼容.您可以在此处了解更多信息:可以使用Android Studio来运行标准的Java项目?

The reason you get java.lang.ClassNotFoundException is incompatibility of plain java projects and Android projects. You can read more here: Can Android Studio be used to run standard Java projects?

因此，从理论上讲，要使TestSuiteRunner处于这种形式，您可以将其移动到单独的Java库模块，并将Android应用程序的模块链接为该Java库的依赖项.不幸的是，您会收到以下警告:

So, theoretically, to have TestSuiteRunner in this form, you could move it to separate Java library module and link Android app's module as a dependency for this Java lib. Unfortunately, you'd get this warning:

警告:忽略模块"app"对模块"lib"的依赖性. Java模块不能依赖Android模块

Warning:Ignoring dependency of module 'app' on module 'lib'. Java modules cannot depend on Android modules

即它不会以这种方式工作.

i.e. it's not gonna work this way.

我希望这会有所帮助.

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