some more tests for ContainerViewController

lib/android/app/src/main/java/com/reactnativenavigation/viewcontrollers/ContainerViewController.java

 
 	public void applyNavigationOptions(final NavigationOptions options) {
 		navigationOptions.mergeWith(options);
+		applyNavigationOptions();
+	}
+
+	private void applyNavigationOptions() {
 		if (getParentStackController() != null) {
 			getParentStackController().setTitle(navigationOptions.title);
 		}

lib/android/app/src/main/java/com/reactnativenavigation/viewcontrollers/StackController.java

 		ensureViewIsCreated();
 		return topBar;
 	}
-
-	private void ensureViewIsCreated() {
-		getView();
-	}
 }

lib/android/app/src/main/java/com/reactnativenavigation/viewcontrollers/ViewController.java

 	@NonNull
 	protected abstract View createView();
 
+	public void ensureViewIsCreated() {
+		getView();
+	}
+
 	public boolean handleBack() {
 		return false;
 	}

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/ContainerViewControllerTest.java

+package com.reactnativenavigation.viewcontrollers;
+
+import android.app.Activity;
+
+import com.reactnativenavigation.BaseTest;
+import com.reactnativenavigation.mocks.TestContainerView;
+import com.reactnativenavigation.parse.NavigationOptions;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Java6Assertions.assertThat;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+public class ContainerViewControllerTest extends BaseTest {
+	private ContainerViewController uut;
+	private Activity activity;
+
+	@Override
+	public void beforeEach() {
+		super.beforeEach();
+		activity = newActivity();
+	}
+
+	@Test
+	public void createsViewFromContainerViewCreator() throws Exception {
+		final ContainerViewController.ContainerView view = new TestContainerView(activity);
+		uut = new ContainerViewController(newActivity(), "id1", "containerName", new ContainerViewController.ContainerViewCreator() {
+			@Override
+			public ContainerViewController.ContainerView create(final Activity activity1, final String containerId, final String containerName) {
+				return view;
+			}
+		}, new NavigationOptions());
+		assertThat(uut.getView()).isSameAs(view);
+	}
+
+	@Test
+	public void containerViewDestroyedOnDestory() throws Exception {
+		final ContainerViewController.ContainerView view = spy(new TestContainerView(activity));
+		uut = new ContainerViewController(newActivity(), "id1", "containerName", new ContainerViewController.ContainerViewCreator() {
+			@Override
+			public ContainerViewController.ContainerView create(final Activity activity1, final String containerId, final String containerName) {
+				return view;
+			}
+		}, new NavigationOptions());
+		uut.ensureViewIsCreated();
+
+		verify(view, times(0)).destroy();
+		uut.destroy();
+		verify(view, times(1)).destroy();
+	}
+}

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/ViewControllerTest.java

 		uut.destroy();
 		assertThat(parent.getChildCount()).withFailMessage("expected not to have children").isZero();
 	}
+
+	@Test
+	public void ensureViewIsCreated() throws Exception {
+		ViewController spy = spy(uut);
+		verify(spy, times(0)).getView();
+		spy.ensureViewIsCreated();
+		verify(spy, times(1)).getView();
+	}
 }