Add assert statements to Phase 3 before each

[mewilker]

Our Current Phase 3 tests do not run correctly before the register and clear endpoints are run. This is because these two endpoints are called before each test. There is no assert statements in the before each that would point students to looking at this.

I've added an assert statement to the branch phase3-assert-beforeeach. It simply assumes the authToken is not null. If the authToken is null, the test will fail, with a message asking if the student implemented register and clear. This seems like it should be enough, but do we want to add more to this function?

[hkamm123]

Looks great to me. Would it be beneficial to add a similar assertion for regResult.getUsername()?

[mewilker]

I don't think the StandardAPI before each would be the place to check that. There is a valid register test later that should check the finer details. This check is just to make sure everything can somewhat run.