Fix displaying of status code without a status message. (#1301)

Co-authored-by: Jakub Roztocil <jakub@roztocil.co>

tests/utils/http_server.py

@@ -18,14 +18,17 @@ class TestHandler(BaseHTTPRequestHandler):
             return func
         return inner
 
-    def do_GET(self):
+    def do_generic(self):
         parse_result = urlparse(self.path)
-        func = self.handlers['GET'].get(parse_result.path)
+        func = self.handlers[self.command].get(parse_result.path)
         if func is None:
             return self.send_error(HTTPStatus.NOT_FOUND)
 
         return func(self)
 
+    do_GET = do_generic
+    do_POST = do_generic
+
 
 @TestHandler.handler('GET', '/headers')
 def get_headers(handler):
@@ -73,6 +76,15 @@ def random_encoding(handler):
     handler.wfile.write('0\r\n\r\n'.encode('utf-8'))
 
 
+@TestHandler.handler('POST', '/status/msg')
+def status_custom_msg(handler):
+    content_len = int(handler.headers.get('content-length', 0))
+    post_body = handler.rfile.read(content_len).decode()
+
+    handler.send_response(200, post_body)
+    handler.end_headers()
+
+
 @pytest.fixture(scope="function")
 def http_server():
     """A custom HTTP server implementation for our tests, that is