remove_spec.rb in github_api-0.9.1

- old
+ new

@@ -18,11 +18,13 @@
 
   context "resouce removed" do
     let(:body) { '' }
     let(:status) { 204 }
 
+    it { expect { subject.remove }.to raise_error(ArgumentError) }
+
     it "should fail to add resource if 'collaborator' input is missing" do
-      expect { subject.remove user, repo, nil }.to raise_error(ArgumentError)
+      expect { subject.remove user, repo }.to raise_error(ArgumentError)
     end
 
     it "should add resource successfully" do
       subject.remove user, repo, collaborator
       a_delete(request_path).should have_been_made