@Test
public void testListFileVersions() throws B2Exception {

    final B2ListFileVersionsRequest request = B2ListFileVersionsRequest.builder(bucketId(1)).build();
    final B2ListFileVersionsResponse response = new B2ListFileVersionsResponse(listOf(), null, null);
    when(webifier.listFileVersions(anyObject(), eq(request))).thenReturn(response);
    assertEquals(response, client.listFileVersions(request));
    // for coverage
    //noinspection ResultOfMethodCallIgnored
    response.hashCode();
    assertEquals(response, new B2ListFileVersionsResponse(listOf(), null, null));
}