android - UiAutomator 2.0 命令行测试

Question

我正在尝试使用 Android UIAutomator 进行一些简单的测试，我知道自 UIAutomator 2.0 以来它需要由 Gradle 构建，我可以运行我的简单测试，它只通过 Android Studio 或命令行按下主页按钮通过“gradlew.bat cC”，我想知道如何使用 adb 命令运行它？

我试过了

adb shell am instrument -w test.simple.uiatest/android.test.InstrumentationTestRunner

按照建议here , 但我得到

INSTRUMENTATION_STATUS: id=ActivityManagerService
INSTRUMENTATION_STATUS: Error=Unable to find instrumentation info for: ComponentInfo{test.simple.uiatest/android.test.InstrumentationTestRunner}
INSTRUMENTATION_STATUS_CODE: -1
android.util.AndroidException: INSTRUMENTATION_FAILED: test.simple.uiatest/android.test.InstrumentationTestRunner
    at com.android.commands.am.Am.runInstrument(Am.java:951)
    at com.android.commands.am.Am.onRun(Am.java:316)
    at com.android.internal.os.BaseCommand.run(BaseCommand.java:47)
    at com.android.commands.am.Am.main(Am.java:99)
    at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
    at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:250)

下面是我的代码 fragment 和build.gradle，我做错了什么？

package test.simple.uiatest;

import android.support.test.uiautomator.UiDevice;
import android.test.InstrumentationTestCase;

public class ApplicationTest extends InstrumentationTestCase {
    private UiDevice theDevice;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        theDevice = UiDevice.getInstance(getInstrumentation());

        theDevice.pressHome();
    }

    public void testName() throws Exception {
        theDevice.pressHome();
    }
}

构建.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 22
    buildToolsVersion "23.0.0 rc2"

    defaultConfig {
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        applicationId "test.simple.uiatest"
        minSdkVersion 21
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    packagingOptions {
        exclude 'LICENSE.txt'
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile 'com.android.support.test:runner:0.2'
    androidTestCompile 'com.android.support.test:rules:0.2'
    androidTestCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.0'
}

Answer 1

如果未安装测试 APK，或者如果 am instrument ... 命令中的 / 错误，就会出现您看到的错误。

要列出设备上可用的仪器测试，您可以运行 adb shell pm list instrumentation。你应该看到这样一行:

instrumentation:test.simple.uiatest/android.test.InstrumentationTestRunner (target=simple.target.app)

如果您没有看到与您的测试匹配的行，那么您需要安装测试 APK。如果已安装，请仔细检查 pm list instrumentation 输出的 test.simple.uiatest/android.test.InstrumentationTestRunner 部分是否与您的 am instrument 命令。