package com.sdoward.rxgooglemap; import android.graphics.Bitmap; import com.google.android.gms.maps.GoogleMap; import org.junit.Test; import org.junit.runner.RunWith; import org.mockito.*; import org.powermock.core.classloader.annotations.PrepareForTest; import org.powermock.modules.junit4.PowerMockRunner; import rx.observers.TestSubscriber; import static org.mockito.Mockito.verify; @RunWith(PowerMockRunner.class) @PrepareForTest(GoogleMap.class) public class SnapshotFuncTest { @Mock private GoogleMap googleMap; @Captor private ArgumentCaptor<GoogleMap.SnapshotReadyCallback> argumentCaptor; @Test public void shouldProvideBitmap() throws Exception { TestSubscriber<Bitmap> testSubscriber = new TestSubscriber<>(); new SnapshotFunc().call(googleMap) .subscribe(testSubscriber); verify(googleMap).snapshot(argumentCaptor.capture()); argumentCaptor.getValue().onSnapshotReady(null); testSubscriber.assertNoErrors(); testSubscriber.assertValueCount(1); testSubscriber.assertValue(null); } }