A class which registers middleware (via .use()) and then processes inbound requests against that middleware (via .listen()).

Make an assertion that actual and expected are equal, deeply. If not deeply equal, then throw.

Executes a function, expecting it to throw. If it does not, then it throws. An error class and a string that should be included in the error message can also be asserted.

Executes a function which returns a promise, expecting it to throw or reject. If it does not, then it throws. An error class and a string that should be included in the error message can also be asserted.