create default messages for Http Exceptions

Author: BurnzZ

tests/test_exceptions.py

@@ -9,6 +9,7 @@
 def test_http_error_init():
     exc = HttpError()
     assert exc.request is None
+    assert exc.args
 
     request = HttpRequest(URL)
     exc = HttpError(request=request)
@@ -18,6 +19,7 @@ def test_http_error_init():
 def test_http_request_error_init():
     exc = HttpRequestError()
     assert exc.request is None
+    assert exc.args
 
     request = HttpRequest(URL)
     exc = HttpRequestError(request=request)
@@ -32,6 +34,7 @@ def test_http_response_error_init():
     exc = HttpResponseError()
     assert exc.request is None
     assert exc.response is None
+    assert exc.args
 
     request = HttpRequest(URL)
     response = HttpResponse(URL, b"")

web_poet/exceptions/http.py

@@ -24,6 +24,8 @@ class HttpError(IOError):
 
     def __init__(self, msg: str = None, request: HttpRequest = None):
         self.request = request
+        if msg is None:
+            msg = f"An Error ocurred when executing this HTTP Request: {self.request}"
         super().__init__(msg)
 
 
@@ -61,6 +63,8 @@ class HttpResponseError(HttpError):
     :type response: HttpResponse
     """
 
-    def __init__(self, msg: str = None, response: HttpResponse = None, **kwargs):
+    def __init__(self, msg: str = None, response: HttpResponse = None, request: HttpRequest = None):
         self.response = response
-        super().__init__(msg, **kwargs)
+        if msg is None:
+            msg = f"Unexpected HTTP Response received: {self.response}"
+        super().__init__(msg, request=request)