Android插件2.2.3：未找到测试

Question

升级Android gradle插件版本后，我遇到了一个问题，即我的项目中没有找到测试。

这是我的build.gradle文件：

apply plugin: 'com.android.application'

buildscript {
    repositories {
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'
    }
}

android {
    compileSdkVersion 24
    buildToolsVersion '23.0.3'

    defaultConfig {
        applicationId 'application.sample.id'
        minSdkVersion 19
        targetSdkVersion 24
        testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
    }
}

dependencies {
    compile('com.android.support.test.espresso:espresso-contrib:2.2.2') {
        exclude module: 'support-annotations'
    }

    androidTestCompile 'com.android.support:support-annotations:24.2.1'
    androidTestCompile 'com.android.support.test:rules:0.5'
    androidTestCompile 'com.android.support.test:runner:0.5'
    androidTestCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.2'

}

我遇到的错误：

com.android.builder.testing.ConnectedDevice > No tests found.[emulator-name-23_x86(AVD) - 6.0] [31mFAILED [0m
No tests found. This usually means that your test classes are not in the form that your test runner expects (e.g. don't inherit from TestCase or lack @Test annotations).
:TestLauncher:connectedDebugAndroidTest FAILED