From 13803bdb304e78355a8b45078ca8c36adedc6775 Mon Sep 17 00:00:00 2001
From: Eli Uriegas <seemethere101@gmail.com>
Date: Fri, 27 Jan 2017 22:05:46 -0600
Subject: [PATCH] Update for HTTPMethodView compatibility

---
 sanic/constants.py  |  1 +
 sanic/sanic.py      | 10 +++++++++-
 tests/test_views.py | 34 ++++++++++++++++++----------------
 3 files changed, 28 insertions(+), 17 deletions(-)
 create mode 100644 sanic/constants.py

diff --git a/sanic/constants.py b/sanic/constants.py
new file mode 100644
index 00000000..8bb97ed3
--- /dev/null
+++ b/sanic/constants.py
@@ -0,0 +1 @@
+HTTP_METHODS = ('GET', 'POST', 'PUT', 'HEAD', 'OPTIONS', 'PATCH', 'DELETE')
\ No newline at end of file
diff --git a/sanic/sanic.py b/sanic/sanic.py
index 00b1961b..1e4de2fb 100644
--- a/sanic/sanic.py
+++ b/sanic/sanic.py
@@ -6,6 +6,7 @@ from inspect import isawaitable, stack, getmodulename
 from traceback import format_exc
 
 from .config import Config
+from .constants import HTTP_METHODS
 from .exceptions import Handler
 from .exceptions import ServerError
 from .log import log
@@ -90,6 +91,9 @@ class Sanic:
     def patch(self, uri, host=None):
         return self.route(uri, methods=["PATCH"], host=host)
 
+    def delete(self, uri, host=None):
+        return self.route(uri, methods=["DELETE"], host=host)
+
     def add_route(self, handler, uri, methods=frozenset({'GET'}), host=None):
         """
         A helper method to register class instance or
@@ -98,9 +102,13 @@ class Sanic:
 
         :param handler: function or class instance
         :param uri: path of the URL
-        :param methods: list or tuple of methods allowed
+        :param methods: list or tuple of methods allowed, these are overridden
+                        if using a HTTPMethodView
         :return: function or class instance
         """
+        # Handle HTTPMethodView differently
+        if hasattr(handler, 'view_class'):
+            methods = frozenset(HTTP_METHODS)
         self.route(uri=uri, methods=methods, host=host)(handler)
         return handler
 
diff --git a/tests/test_views.py b/tests/test_views.py
index 24647cf6..3c695500 100644
--- a/tests/test_views.py
+++ b/tests/test_views.py
@@ -1,43 +1,45 @@
+import pytest as pytest
+
 from sanic import Sanic
 from sanic.response import text, HTTPResponse
 from sanic.views import HTTPMethodView
 from sanic.blueprints import Blueprint
 from sanic.request import Request
 from sanic.utils import sanic_endpoint_test
+from sanic.constants import HTTP_METHODS
 
 
-def test_methods():
+@pytest.mark.parametrize('method', HTTP_METHODS)
+def test_methods(method):
     app = Sanic('test_methods')
 
     class DummyView(HTTPMethodView):
 
         def get(self, request):
-            return text('I am get method')
+            return text('I am GET method')
 
         def post(self, request):
-            return text('I am post method')
+            return text('I am POST method')
 
         def put(self, request):
-            return text('I am put method')
+            return text('I am PUT method')
+
+        def head(self, request):
+            return text('I am HEAD method')
+
+        def options(self, request):
+            return text('I am OPTIONS method')
 
         def patch(self, request):
-            return text('I am patch method')
+            return text('I am PATCH method')
 
         def delete(self, request):
-            return text('I am delete method')
+            return text('I am DELETE method')
 
     app.add_route(DummyView.as_view(), '/')
 
-    request, response = sanic_endpoint_test(app, method="get")
-    assert response.text == 'I am get method'
-    request, response = sanic_endpoint_test(app, method="post")
-    assert response.text == 'I am post method'
-    request, response = sanic_endpoint_test(app, method="put")
-    assert response.text == 'I am put method'
-    request, response = sanic_endpoint_test(app, method="patch")
-    assert response.text == 'I am patch method'
-    request, response = sanic_endpoint_test(app, method="delete")
-    assert response.text == 'I am delete method'
+    request, response = sanic_endpoint_test(app, method=method)
+    assert response.text == 'I am {} method'.format(method)
 
 
 def test_unexisting_methods():