@Test
public void testListFileNames() throws B2Exception {

    final B2ListFileNamesRequest request = B2ListFileNamesRequest.builder(bucketId(1)).build();
    final B2ListFileNamesResponse response = new B2ListFileNamesResponse(listOf(), null);
    when(webifier.listFileNames(anyObject(), eq(request))).thenReturn(response);
    assertEquals(response, client.listFileNames(request));
    // for coverage
    //noinspection ResultOfMethodCallIgnored
    response.hashCode();
    assertEquals(response, new B2ListFileNamesResponse(listOf(), null));
}