@Test
public void testWriteFeatureAsPolygonWithHoles() throws
                                                 Exception {

    // given a Feature as Polygon with holes
    final Feature feature = mock(Feature.class);
    doReturn("id1").when(feature)
                   .getId();
    doReturn("Feature").when(feature)
                       .getType();
    doReturn(createPolygon(gf,
                           createLinearRing(gf,
                                            createCoordinate(gf,
                                                             47.226257d,
                                                             -1.554564d),
                                            createCoordinate(gf,
                                                             47.226295d,
                                                             -1.554202d),
                                            createCoordinate(gf,
                                                             47.226075d,
                                                             -1.554169d),
                                            createCoordinate(gf,
                                                             47.226049d,
                                                             -1.554496d),
                                            createCoordinate(gf,
                                                             47.226257d,
                                                             -1.554564d)),
                           createLinearRing(gf,
                                            createCoordinate(gf,
                                                             47.226219d,
                                                             -1.554430d),
                                            createCoordinate(gf,
                                                             47.226237d,
                                                             -1.554261d),
                                            createCoordinate(gf,
                                                             47.226122d,
                                                             -1.554245d),
                                            createCoordinate(gf,
                                                             47.226106d,
                                                             -1.554411d),
                                            createCoordinate(gf,
                                                             47.226219d,
                                                             -1.554430d)))).when(feature)
                                                                           .getGeometry();
    doReturn(new Bundle()).when(feature)
                          .getProperties();
    // when write this Feature as JSON string
    final StringWriter writer = new StringWriter();
    geoJsonWriter.write(writer,
                        feature);
    // then
    assertNotNull(writer.toString());
    assertEquals(TestHelper.getFixture("feature_polygon_holes.json"),
                 writer.toString());
}