Test running failed: Unable to find instrumentation info for: ComponentInfo{} -- error trying to test in IntelliJ with Gradle

Question

Everytime I try to run my tests the console says this:

Running tests
Test running startedTest running failed: Unable to find instrumentation info for:
ComponentInfo{com.employeeappv2.employeeappv2.test/android.test.InstrumentationTestRunner}
Empty test suite.

I've been stuck on this for a while and the solutions I've seen online so far have not helped. My project structure is set up like this:

*Main Module -src *instrumentTest -java *main -java -manifest *build.gradle

My build.gradle file looks like this:

buildscript {
repositories {
    mavenCentral()
}
dependencies {
    classpath 'com.android.tools.build:gradle:0.9.+'
}
}
apply plugin: 'android'

repositories {
    mavenCentral()
}

android {
compileSdkVersion 19
buildToolsVersion "19.1.0"

defaultConfig {
    minSdkVersion 16
    targetSdkVersion 19
    versionCode 1
    versionName "2.1.0"
    testPackageName "login.test"
    testInstrumentationRunner "android.test.InstrumentationTestRunner"
}
buildTypes {
    release {
        runProguard false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-   rules.txt'
    }
}

packagingOptions {
    exclude 'META-INF/LICENSE'
    exclude 'META-INF/NOTICE'
    exclude 'META-INF/notice.txt'
    exclude 'META-INF/license.txt'
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile files('libs/scandit.zip')
compile project(':pullToRefresh')
compile 'com.android.support:appcompat-v7:19.+'
compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.1+'
compile 'org.springframework.android:spring-android-rest-template:1.0.1+'
compile 'org.json:json:20090211'
compile 'com.fasterxml.jackson.core:jackson-databind:2.3.1'
compile 'com.fasterxml.jackson.core:jackson-annotations:2.3.0'
compile 'com.fasterxml.jackson.core:jackson-core:2.3.1'
compile 'com.android.support:support-v4:19.1.+'
compile 'com.mcxiaoke.volley:library:1.0.+@aar'
androidTestCompile 'junit:junit:3.8'
}

Do you need to have a separate manifest for your tests directory? If so what would that look like?

Edit: I tried adding a manifest to my instrumentTest directory with no luck. Note that I could not get IntelliJ to resolve the targetPackage name, so it appears red.

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.employeeappv2.employeeappv2.src.instrumentTest"
      android:versionCode="1"
      android:versionName="1.0.0">
<application>
    <uses-library android:name="android.test.runner" />
</application>
<instrumentation
        android:name="android.test.InstrumentationTestRunner"
        android:targetPackage="com.employeeappv2.employeeappv2.src.main"/>
</manifest>

Answer 1

So the main problem was that when I created an androidTest folder under /src/, it wasn't being picked up by IntelliJ as a source folder for testing (java subdirectory should turn green). I was using IntelliJ 13.0.3 and after upgrading to 13.1.3, all of my troubles went away.

*Note: do not try to add a manifest to your androidTest folder, the Gradle docs specifically state that the manifest should be auto-generated when you create the androidTest folder. The problem for me was that the file wasn't being generated as androidTest wasn't being recognized by IntelliJ/Gradle, thus throwing the no instrumentation error.