@Test
public void if_formatNotSpecifiedAndNoAcceptsHaveFormat() {

	when(request.getParameter("_format")).thenReturn(null);
	when(request.getHeader("Accept")).thenReturn("application/SOMETHING_I_DONT_HAVE");
	String format = resolver.getAcceptFormat();
	assertNull(format);
	verify(request).getHeader("Accept");
}