message: Add some tests for the record type
  Summary: These were things I wanted to document, but noticed I didn't have tests for, so add tests.
diff: @@ -87,6 +87,9 @@ rec1 = rec_type(host = "test", port=80)
  rec2 = rec_type(host = "test", port=90)
  assert_eq(rec1, rec1)
  assert_eq(rec1 == rec2, False)
  +assert_eq(rec1.host, "test")
  +assert_eq(rec1.port, 80)
  +assert_eq(dir(rec1), ["host", "port"])
  "#,
  );
  assert::fails(
  