Android Espresso：“没有找到测试”，“进程崩溃”

Question

在使用Espresso测试我的Android应用程序时，我注意到运行配置了All in Module的AndroidTest找不到测试，而运行All in Package成功。

我创建了以下可重现的案例：

• 使用向导使用minSdk 8创建新的干净应用程序并清空活动
• 使用espresso依赖项等配置gradle（见下文）
• 使用All in Module选项创建AndroidTest Run Configuration ，使用All in Package创建一个
• 添加带测试的类（见下文）
• 使用All in Package运行：测试通过
• All in Module使用All in Module运行：未找到任何测试

使用All in Module运行直到几天前一直运行良好。 我记得有所做的更改正在升级的Android工作室1.4和升级Android Support Library到23.1.0和Android Support Repository到24.0.0。

顺便说一句。 还有gradlew connectedCheck和gradlew createDebugAndroidTestCoverageReport现在失败了。

有没有人有解决这个问题的建议？

app.build.gradle：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        applicationId "com.example.xyz.apptest"
        minSdkVersion 8
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            testCoverageEnabled true
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.1.0'

    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.1') {
        // Necessary if your app targets Marshmallow (since Espresso
        // hasn't moved to Marshmallow yet)
        exclude group: 'com.android.support', module: 'support-annotations'
    }
    androidTestCompile('com.android.support.test.espresso:espresso-contrib:2.2.1') {
        // Necessary if your app targets Marshmallow (since Espresso
        // hasn't moved to Marshmallow yet)
        exclude group: 'com.android.support', module: 'support-annotations'
        exclude group: 'com.android.support', module: 'appcompat'
        exclude group: 'com.android.support', module: 'support-v4'
        exclude module: 'recyclerview-v7'
    }
    androidTestCompile('com.android.support.test.espresso:espresso-idling-resource:2.2.1') {
        // Necessary if your app targets Marshmallow (since Espresso
        // hasn't moved to Marshmallow yet)
        exclude group: 'com.android.support', module: 'support-annotations'
    }
    androidTestCompile('com.android.support.test:runner:0.4.1') {
        // Necessary if your app targets Marshmallow (since the test runner
        // hasn't moved to Marshmallow yet)
        exclude group: 'com.android.support', module: 'support-annotations'
    }
    androidTestCompile('com.android.support.test:rules:0.4.1') {
        // Necessary if your app targets Marshmallow (since the test runner
        // hasn't moved to Marshmallow yet)
        exclude group: 'com.android.support', module: 'support-annotations'

    }
}

Test.java

@RunWith(AndroidJUnit4.class)
public class Test1 {

    @Rule
    public ActivityTestRule<MainActivity> activityTestRule =
            new ActivityTestRule<>(MainActivity.class, true, false);

    @Before
    public void setUp() {
        activityTestRule.launchActivity(new Intent());
    }

    @After
    public void cleanUp() {
    }

    @Test
    public void test() {
    }
}

在运行窗口中跟踪：

Testing started at 12:14 ...
Waiting for device.
Target device: 3_2_API_10 [emulator-5554]
Uploading file
    local path: C:\Users\xyz\Documents\Development\AndroidStudio\AppTest\app\build\outputs\apk\app-debug.apk
    remote path: /data/local/tmp/com.example.xyz.apptest
No apk changes detected.
Skipping file upload, force stopping package instead.
DEVICE SHELL COMMAND: am force-stop com.example.xyz.apptest
Uploading file
    local path: C:\Users\xyz\Documents\Development\AndroidStudio\AppTest\app\build\outputs\apk\app-debug-androidTest-unaligned.apk
    remote path: /data/local/tmp/com.example.xyz.apptest.test
No apk changes detected.
Skipping file upload, force stopping package instead.
DEVICE SHELL COMMAND: am force-stop com.example.xyz.apptest.test
Running tests
Test running startedTest running failed: Instrumentation run failed due to 'Process crashed.'
Empty test suite.

logcat：没有发现易感差异。

Answer 1

从基于API 10的仿真器切换到API 17解决了该问题。

尽管API 10在上周运行良好，但它已变得无法预测。 有时它会运行，但大多数情况下都没有。 删除单个测试方法可能会使其工作，将其放回可能会使其保持工作（或不工作）。 试图第五次运行测试可能会再次运行...

更新2016-03-16 ：增加API 10仿真器的资源使测试再次可用于API 10 ...