Ho to configure Junit4 AndroidStudio with Gradle - unit-testing

Question

I want to make test of some clases in my project.
I'm project is all android, but the new clases are pure Java (I'm trying to make a little sdk for the app)
But I don't know how to configure correctly
Gradle file:
apply plugin: 'android'
android {
compileSdkVersion "Google Inc.:Google APIs:19"
buildToolsVersion "19.0.1"
lintOptions{
checkReleaseBuilds false
}
defaultConfig {
minSdkVersion 8
targetSdkVersion 19
versionCode 28
versionName "4.0.5"
}
signingConfigs {
debug {
..........
}
release {
..........
}
}
buildTypes {
debug{
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
debuggable true
buildConfigField "boolean", "LOG_ENABLED", "true"
signingConfig signingConfigs.debug
}
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
debuggable false
buildConfigField "boolean", "LOG_ENABLED", "false"
signingConfig signingConfigs.release
}
}
productFlavors{
develFlavor{
}
testFlavor{
..........
}
trainingFlavor{
..........
}
preFlavor{
..........
}
proFlavor{
.........
}
}
}
if (project.hasProperty('storePassword')) {
android.signingConfigs.release.storePassword = storePassword
}
if (project.hasProperty('keyAlias')) {
android.signingConfigs.release.keyAlias = keyAlias
}
if (project.hasProperty('keyPassword')) {
android.signingConfigs.release.keyPassword = keyPassword
}
repositories {
mavenCentral()
}
sourceSets {
test {
java.srcDir file(''src/main/java/es/tempos/gas/sdk/test'')
}
}
dependencies {
unitTestCompile 'junit:junit:4.11'
compile 'com.google.code.gson:gson:1.7.1'
compile 'com.android.support:appcompat-v7:+'
compile files('libs/libGoogleAnalyticsServices.jar')
compile files('libs/sbc_mapslib.jar')
compile files('libs/t21c2dm-lib-v1.0.jar')
}
I want to put the test cases in the folfer Test>SDK
Estructure of the app:
+SmartPhoneGreatApp
----.idea
----app
-----build
-----libs
-----src
-----develFlavor
-----main
----sdk
-----preFlavor
----- .........
........
-----test
------sdk
and the testing class(for the moment do nothing)
package es.tempos21.gas.sdk.test;
import org.junit.Test;
public class AuthenticateTest {
#Test
public void testAuthenticate() throws Exception {
}
}
And the error I'm getting:
Gradle 'SmartPhoneGreatApp' project refresh failed:
Could not find property 'unitTest' on SourceSet container.
Gradle settings

Answer 1

In the Android plugin, sourceSets are configured differently from how the Java plugin does it, so you should read the docs at http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Sourcesets-and-Dependencies
For testing you'll want to do something like this:
android {
sourceSets {
androidTest.setRoot('tests')
}
}
A shortcut would be to do this instead:
android.sourceSets.androidTest.setRoot('tests')
Note that you're supplying a new top-level directory for where the tests go (and the Java classes will be in a directory structure underneath that corresponds to their package path); in your example you're trying to point it at a package already inside src/main/java/path/to/package, which isn't going to work.