ContentProviderTest

@RunWith(RobolectricTestRunner.class)
public class MyCustomContentProviderTest {

	private ContentResolver mContentResolver;
	private ShadowContentResolver mShadowContentResolver;
	private ShadowContentProvider mShadowContentProvider;

	@Before
	public void setUp() throws Exception {

		mProvider = new MyCustomContentProvider();
		mContentResolver = Robolectric.application.getContentResolver();
    mShadowContentResolver = shadowOf(mContentResolver);
		
		mProvider.onCreate();
		
		ShadowContentResolver.registerProvider(MyCustomContentProvider.AUTHORITY, mProvider);
	}

	@Test
	public void testInsert() {
		// insert 1 item
    ContentValues testRow = new ContentValues();
		testRow.put(_ID, 1);
		testRow.put(NAME, "name");
		contentResolver.insert(CONTENT_URI, testRow);
		
    // test that the item was inserted
		assertThat(mShadowContentResolver.query(MyCustomContentProvider.CONTENT_URI, null, null, null, null), is(1));
	}
}