While working on some tests, I was having a tricky problem in a test suite. Eventually I tracked it down to an interaction between tests. I suspected the test library, but once I tried to make an isolated test case, I realized the test library was working fine. It turns out it was the server’s request cache. The fix is to clear the cache between tests.
Not needed for this PR, though I’m adding it to this branch because it conflicts with this change.
Running the server in process is necessary for the mock to work. This is an approach I’ve taken in the past. I experimented with this setup quite a bit when I was playing around with a test suite, and it seemed to work well enough. Setting `process.argv` is a admitedly a bit gross, though a cleaner approach would require more involved changes to `server.js`.
