配置Gradle + Robolectric

Question

I'm starting to use gradle and robolectric.

I'm following this example:

http://www.peterfriese.de/android-testing-with-robolectric/

However, he complains the lack of JUnit and Roboeletric classes.

Below is my file build.gradle and some prints

buildscript {
    repositories {
        mavenCentral()
        maven {
            url 'https://oss.sonatype.org/content/repositories/snapshots/'
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.9.+'
        classpath 'com.squareup.gradle:gradle-android-test-plugin:0.9.1-SNAPSHOT'
    }
}
apply plugin: 'android'
apply plugin: 'android-test'

repositories {
    mavenCentral()
}

android {


    compileSdkVersion 19
    buildToolsVersion "19.1.0"

    defaultConfig {
        minSdkVersion 8
        targetSdkVersion 19
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }

    sourceSets {
        instrumentTest.setRoot('src/test')
    }
}

    dependencies {
        compile 'com.android.support:appcompat-v7:19.1.0'

    instrumentTestCompile 'junit:junit:4.10'
    instrumentTestCompile 'org.robolectric:robolectric:2.3-SNAPSHOT'
    instrumentTestCompile 'com.squareup:fest-android:1.0.+'

    testCompile 'junit:junit:4.10'
    testCompile 'org.robolectric:robolectric:2.3-SNAPSHOT'
    testCompile 'com.squareup:fest-android:1.0.+'
}

Answer 1

You have to add build type debug (correctly to say you need to have different from release build type). It is square test plugin requirement as well as Robolectric test plugin ( https://github.com/robolectric/robolectric-gradle-plugin/blob/master/src/main/groovy/org/robolectric/gradle/RobolectricPlugin.groovy#L42 ).

Modify your build.gradle to next:

buildTypes {

        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }

        debug {
        }

}

And don't forget to switch Android studio to debug variant: