Merge pull request #75 from KevinSjoberg/fix/warning-for-generic-raise-error-test

Fix warning message for `.raise_error` matcher

Author: zimbatm

spec/client_spec.rb

@@ -135,7 +135,7 @@
       end
 
       it "should fail on bad urls" do
-        expect { @client.url = "gopher/somekey:somesecret@://api.staging.pusherapp.co://m:8080\apps\87" }.to raise_error
+        expect { @client.url = "gopher/somekey:somesecret@://api.staging.pusherapp.co://m:8080\apps\87" }.to raise_error(URI::InvalidURIError)
       end
     end