add support for tests

Author: theScrabi

gradle.properties

@@ -1,3 +1,4 @@
 android.enableJetifier=true
 android.useAndroidX=true
-org.gradle.jvmargs=-Xmx1536M
+org.gradle.jvmargs=-Xmx1536M
+android.enableUnitTestBinaryResources=true

owncloudComLibrary/build.gradle

@@ -14,6 +14,14 @@ dependencies {
         exclude module: "kotlin-reflect"
     }
     kapt "com.squareup.moshi:moshi-kotlin-codegen:$moshiVersion"
+
+    testImplementation 'junit:junit:4.13'
+    testImplementation 'org.robolectric:robolectric:4.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+    androidTestImplementation 'androidx.test:runner:1.3.0'
+    androidTestImplementation 'androidx.test:core:1.3.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test:rules:1.3.0'
 }
 
 android {
@@ -40,4 +48,10 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
+
+    testOptions {
+        unitTests {
+            includeAndroidResources = true
+        }
+    }
 }