FWIW, It would be neat if you could add in a unique string in the displayName to make #426 a little bit easier.
Something like 
```
var uniqueString = TestsUtil.generateTestUserId('resourcetype-test');

.. 

SearchTestsUtil.searchAll(doerRestContext, 'general', null, {'resourceTypes': 'content', 'q': uniqueString}, function(err, results) {

```
should work.