changed to RSpec's expect syntax

I decided to change clearance to expect syntax for a project I was working on.  If, you want what I did, great!  If, not, you can just close this.

Please note, I have not done a poll request before.  If I have done it incorrectly, I apologize.
Each argument (including the first) should get its own line. The closing paren should also get its own line. Don't line them up (just 1 level of indentation).