Add a unittest to reproduce issue #11

tests/pecantest/test/controllers/ws.py

@@ -89,3 +89,7 @@ class AuthorsController(RestController):
     def post(self, author):
         author.id = 10
         return author
+
+    @wsmeext.pecan.wsexpose(None, int)
+    def delete(self, author_id):
+        print "Deleting", author_id

tests/pecantest/test/tests/test_ws.py

@@ -123,3 +123,7 @@ class TestWS(FunctionalTest):
         print book
         assert book['id'] == 2
         assert book['author']['id'] == 1
+
+    def test_no_content_type_if_no_return_type(self):
+        res = self.app.delete('/authors/4')
+        assert "Content-Type" not in res.headers