robolectric-gradle-plugin-fix

// please check https://github.com/bademux/robolectric-java-gradle-plugin instead
 
//build.gradle
//fixes  AndroidStudion<>Robolectric integration


//fixes 'java.lang.RuntimeException: Stub!' and 'NoClassDefFoundError'
gradle.projectsEvaluated {
    def imlFile = file(project.name + '.iml')
    def parsedXml;
    try {
        parsedXml = (new XmlParser()).parse(imlFile)
    } catch (Exception e) { //fix CI build
        println 'iml file not found, nothing to do here!'
        return
    }
    def jdkNode = parsedXml.depthFirst().orderEntry.find { it.'@type' == 'jdk' }
    def component = jdkNode.parent()

    boolean imlChanged = false

    if (!component.children().last().equals(jdkNode)) {
        println 'iml fix: moving <orderEntry type="jdk"> to the end'
        component.remove(jdkNode)
        component.append(jdkNode)
        imlChanged = true
    }

    if (component.'output-test'.isEmpty()) {
        println 'iml fix: adding <output-test>'
        component.appendNode('output-test', ['url': "$project.buildDir/test-classes"])
        imlChanged = true
    }

    if (imlChanged) {
        new XmlNodePrinter(new PrintWriter(new FileWriter(imlFile))).print(parsedXml)
    }
}

//fixes 'NoClassDefFoundError' (or run manually 'testDebugClasses' before test)
tasks.findByName("assembleDebug").dependsOn("testDebugClasses")

I wrote a Gradle plugin to integrate Robolectric tests into Android Studio with minimal configuration.
If you are curious, please check out: https://github.com/kageiit/gradle-robojava-plugin