java - 程序类型已经存在 : androidx. test.InstrumentationRegistry

Question

尝试运行下面的测试时，我不断收到一条错误消息:'程序类型已经存在:androidx.test.InstrumentationRegistry'

我是新的 android 程序员，我不确定出了什么问题。我在网上读到 androidTestImplementation 的顺序很重要但是当移动它时没有任何反应。我仍然遇到同样的错误。我也尝试清理构建然后重建项目，但错误仍然存​​在。

提前感谢您的帮助:)

@RunWith(MockitoJUnitRunner.class)
public class ExampleInstrumentedTest {

    @Test
    public void useAppContext() {
        // Context of the app under test.
        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();

        assertEquals("com.testing", appContext.getPackageName());
    }



}

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.0"
    defaultConfig {
        applicationId "com.testing"
        minSdkVersion 19
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility = 1.8
        targetCompatibility = 1.8
    }
    sourceSets { main { res.srcDirs = ['src/main/res', 'src/main/res/Product_Selection_layouts'] } }
    testOptions {
        unitTests.returnDefaultValues = true
    }
}

dependencies {
    implementation 'org.jsoup:jsoup:1.12.1'
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'

    implementation 'androidx.recyclerview:recyclerview:1.0.0'

//    androidTestImplementation 'com.android.support.test:runner:1.0.2'


    //For bottom navigation
    //noinspection GradleCompatible
    implementation 'com.android.support:design:27.0.2'
    implementation files('libs/mockito-core-2.1.0.jar')

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test.espresso:espresso-intents:3.0.2'
    testImplementation 'org.mockito:mockito-core:2.13.0'

    androidTestImplementation 'androidx.test:runner:1.2.0'

    androidTestImplementation 'com.android.support:support-annotations:28.0.0'

}

Answer 1

我刚刚得到答案，按此顺序排列它们使我的工作正常。这必须在依赖项中。

    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test:rules:1.2.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
    androidTestImplementation 'androidx.test.espresso:espresso-intents:3.2.0'