Add POIClick functionality

rxgooglemap/src/main/java/com/sdoward/rxgooglemap/MapObservableProvider.java

@@ -123,6 +123,10 @@ public Observable<Polygon> getPolygonClickObservable() {
         return mapSubject.flatMap(new PolygonClickFunc());
     }
 
+    public Observable<PointOfInterest> getPOIClickObservable() {
+        return mapSubject.flatMap(new POIClickFunc());
+    }
+
     public Observable<GroundOverlay> getGroundOverlayObservable() {
         return mapSubject.flatMap(new GroundOverlayClickFunc());
     }

rxgooglemap/src/main/java/com/sdoward/rxgooglemap/POIClickFunc.java

@@ -0,0 +1,25 @@
+package com.sdoward.rxgooglemap;
+
+import com.google.android.gms.maps.GoogleMap;
+import com.google.android.gms.maps.model.PointOfInterest;
+import rx.Observable;
+import rx.Subscriber;
+import rx.functions.Func1;
+
+class POIClickFunc implements Func1<GoogleMap, Observable<PointOfInterest>> {
+
+    @Override
+    public Observable<PointOfInterest> call(final GoogleMap googleMap) {
+        return Observable.create(new Observable.OnSubscribe<PointOfInterest>() {
+            @Override
+            public void call(final Subscriber<? super PointOfInterest> subscriber) {
+                googleMap.setOnPoiClickListener(new GoogleMap.OnPoiClickListener() {
+                    @Override
+                    public void onPoiClick(PointOfInterest pointOfInterest) {
+                        subscriber.onNext(pointOfInterest);
+                    }
+                });
+            }
+        });
+    }
+}

rxgooglemap/src/test/java/com/sdoward/rxgooglemap/MapObservableProviderTest.java

@@ -124,7 +124,6 @@ public void shouldProvideCameraIdleObservable() throws Exception {
         Assert.assertNotNull(observable);
     }
 
-
     @Test
     public void shouldProvideCameraMoveObservable() throws Exception {
         Observable observable = new MapObservableProvider(mapFragment).getCameraMoveObservable();
@@ -162,6 +161,12 @@ public void shouldProvidePolygonClickObservable() throws Exception {
         Assert.assertNotNull(observable);
     }
 
+    @Test
+    public void shouldProvidePOIClickObservable() throws Exception {
+        Observable observable = new MapObservableProvider(mapFragment).getPOIClickObservable();
+        Assert.assertNotNull(observable);
+    }
+
     @Test
     public void shouldProvideGroundOverlayObservable() throws Exception {
         Observable observable = new MapObservableProvider(mapFragment).getGroundOverlayObservable();

rxgooglemap/src/test/java/com/sdoward/rxgooglemap/POIClickFuncTest.java

@@ -0,0 +1,37 @@
+package com.sdoward.rxgooglemap;
+import static org.mockito.Mockito.verify;
+
+import com.google.android.gms.maps.GoogleMap;
+import com.google.android.gms.maps.model.PointOfInterest;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.Mock;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+import rx.observers.TestSubscriber;
+
+@RunWith(PowerMockRunner.class)
+@PrepareForTest(GoogleMap.class)
+public class POIClickFuncTest {
+
+    @Mock
+    private GoogleMap googleMap;
+    @Captor
+    private ArgumentCaptor<GoogleMap.OnPoiClickListener> argumentCaptor;
+
+    @Test
+    public void shouldEmmitPolygon() throws Exception {
+        TestSubscriber<PointOfInterest> testSubscriber = new TestSubscriber<>();
+        new POIClickFunc().call(googleMap)
+                          .subscribe(testSubscriber);
+        verify(googleMap).setOnPoiClickListener(argumentCaptor.capture());
+        argumentCaptor.getValue().onPoiClick(null);
+        testSubscriber.assertNoErrors();
+        testSubscriber.assertValueCount(1);
+        argumentCaptor.getValue().onPoiClick(null);
+        testSubscriber.assertValueCount(2);
+    }
+
+}