EXPECTED                                                    | ACTUAL                                                      
Test that                                                   | Test that
we give an error                                              we give an error
when a mixin does not                                         when a mixin does not
exist:                                                        exist:
<p>                                                           <p>
                                                            <
<p>                                                         <
                                                            <
We shouldn't                                                <
reach this point                                            <
in the file.                                                <