def test_assert_header(self):
""" Test that checking for headers returns the correct values """
resp = HttpResponse(self.mock_response)
self.assertTrue(resp.assertHeader('content-type'))
self.assertTrue(resp.assertHeader('content-type', 'text/html'))
self.assertFalse(resp.assertHeader('content-type', 'plain/text'))
self.assertFalse(resp.assertHeader('not a header'))
self.assertFalse(resp.assertHeader('not a header', 'not a value'))
self.assertFalse(resp.assertNotHeader('content-type'))
self.assertFalse(resp.assertNotHeader('content-type', 'text/html'))
self.assertTrue(resp.assertNotHeader('content-type', 'plain/text'))
self.assertTrue(resp.assertNotHeader('not a header'))
self.assertTrue(resp.assertNotHeader('not a header', 'not a value'))
