Accept responses with just a status code (Fixes #263)

tests/test_response.py

@@ -109,6 +109,18 @@ class TestResponse(unittest.TestCase):
                       fd.response)
         self.assertTrue(fd.response.endswith(b'\r\n\r\n[1, "2"]'))
 
+    def test_create_status_code(self):
+        res = Response(202)
+        self.assertEqual(res.status_code, 202)
+        self.assertEqual(res.body, b'')
+        fd = FakeStreamAsync()
+        self._run(res.write(fd))
+        self.assertIn(b'HTTP/1.0 202 N/A\r\n', fd.response)
+        self.assertIn(b'Content-Length: 0\r\n', fd.response)
+        self.assertIn(b'Content-Type: text/plain; charset=UTF-8\r\n',
+                      fd.response)
+        self.assertTrue(fd.response.endswith(b'\r\n\r\n'))
+
     def test_create_from_none(self):
         res = Response(None)
         self.assertEqual(res.status_code, 204)
@@ -136,10 +148,10 @@ class TestResponse(unittest.TestCase):
         self.assertTrue(fd.response.endswith(b'\r\n\r\nfoobar'))
 
     def test_create_from_other(self):
-        res = Response(123)
+        res = Response(23.7)
         self.assertEqual(res.status_code, 200)
         self.assertEqual(res.headers, {})
-        self.assertEqual(res.body, 123)
+        self.assertEqual(res.body, 23.7)
 
     def test_create_with_status_code(self):
         res = Response('not found', 404)