Add support for running Robolectric tests

Author: mttkay

rxjava-contrib/rxjava-android/build.gradle

@@ -10,6 +10,7 @@ dependencies {
     compile project(':rxjava-core')
     provided 'junit:junit-dep:4.10'
     provided 'org.mockito:mockito-core:1.8.5'
+    provided 'com.pivotallabs:robolectric:1.2'
     provided 'com.google.android:android:4.0.1.2'
 }
 

rxjava-contrib/rxjava-android/src/main/java/rx/android/testsupport/AndroidTestRunner.java

@@ -0,0 +1,14 @@
+package rx.android.testsupport;
+
+import com.xtremelabs.robolectric.RobolectricConfig;
+import com.xtremelabs.robolectric.RobolectricTestRunner;
+import org.junit.runners.model.InitializationError;
+
+import java.io.File;
+
+public class AndroidTestRunner extends RobolectricTestRunner {
+
+    public AndroidTestRunner(Class<?> testClass) throws InitializationError {
+        super(testClass, new RobolectricConfig(new File("src/test/resources")));
+    }
+}

rxjava-contrib/rxjava-android/src/main/java/rx/android/testsupport/R.java

@@ -0,0 +1,5 @@
+package rx.android.testsupport;
+
+public class R {
+    // resource stub for Robolectric
+}

rxjava-contrib/rxjava-android/src/test/resources/AndroidManifest.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="rx.android.testsupport">
+
+    <application />
+
+</manifest>