[Tests] no-render-return-value: add test cases

Author: chiawendt

tests/lib/rules/no-render-return-value.js

@@ -54,7 +54,17 @@ ruleTester.run('no-render-return-value', rule, {
         version: '0.13.0'
       }
     }
-  }],
+  }, {
+    code: 'var foo = React.render(<div />, root);',
+    settings: {
+      react: {
+        version: '0.0.1'
+      }
+    }
+  },
+  'var foo = render(<div />, root)',
+  'var foo = ReactDom.renderder(<div />, root)'
+  ],
 
   invalid: [{
     code: 'var Hello = ReactDOM.render(<div />, document.body);',