fix code coverage exception

package.json

@@ -108,7 +108,7 @@
         "c9.ide.save": "#4a4a60a004",
         "c9.ide.scm": "#dbad171e75",
         "c9.ide.terminal.monitor": "#b76f1c9f24",
-        "c9.ide.test": "#160e773ed9",
+        "c9.ide.test": "#26cd260224",
         "c9.ide.test.mocha": "#f6cc482886",
         "c9.ide.theme.flat": "#2de8414db7",
         "c9.ide.threewaymerge": "#229382aa0b",