tree f315737824fa6c47b9741feb83d70ddf6a8bcb72
parent fa7c505eb236acc27c82aed8de754eedad8a71a0
author Jonathan Lee <jonathanjlee@google.com> 1706297441 +0000
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1706297441 +0000

[wpt] Don't construct unnecessary promises in `open-close.https.html`

When testing `MIDIInput.{open,close}`, `portPromise` and `accessPromise`
in `checkStateTransition()` are still constructed but not awaited.
Because `open-close.https.html` doesn't pass `access`, the latter is an
unhandled rejection that `chromedriver` detects when running the test
against `chrome` (`content_shell` seems to pass the test anyway).

Only construct the promises if needed. Also, machine-check a
precondition.

Bug: 1499775
Change-Id: I587fec95efd92d2be2733b38e0f65a0c361f5c9b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5239869
Auto-Submit: Jonathan Lee <jonathanjlee@google.com>
Reviewed-by: Michael Wilson <mjwilson@chromium.org>
Commit-Queue: Michael Wilson <mjwilson@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1252797}