@Test
public void handleExceptionWithResponse() {
Response mockr = mock(Response.class);
when(mockr.getStatus()).thenReturn(400);
ReaderException nfe = new ReaderException("unacceptable", mockr);
ReaderExceptionMapper nfem = injector.getInstance(ReaderExceptionMapper.class);
Response r = nfem.toResponse(nfe);
assertEquals(400, r.getStatus());
verifyMessage(r, rtmsg("unacceptable"));
}