Fix routing spec for group controller

spec/routing/routing_spec.rb

@@ -266,13 +266,13 @@ describe "Groups", "routing" do
   end
 
   it "also display group#show on the short path" do
-    allow(Group).to receive(:find_by_path).and_return(true)
+    allow(Group).to receive(:find_by).and_return(true)
 
     expect(get('/1')).to route_to('groups#show', id: '1')
   end
 
   it "also display group#show with dot in the path" do
-    allow(Group).to receive(:find_by_path).and_return(true)
+    allow(Group).to receive(:find_by).and_return(true)
 
     expect(get('/group.with.dot')).to route_to('groups#show', id: 'group.with.dot')
   end