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.
Align the parameters of a method call if they span more than one line.<br>Prefer single-quoted strings when you don't need string interpolation or special symbols.