File: xrFrame_detectedPlanes_inactive_frame.https.html

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<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../resources/webxr_util.js"></script>
<script src="../resources/webxr_test_constants.js"></script>

<script>
let testName = "Accessing detectedPlanes on inactive frame throws InvalidStateError";

xr_session_promise_test(
  testName,
  (session, controller, t) => {
    return new Promise((resolve) => {
      session.requestAnimationFrame((time, frame) => {
        // Access during rAF is fine.
        let planes = frame.detectedPlanes;

        // The frame is only active during the requestAnimationFrame callback.
        // We use step_timeout to queue a task that runs after this callback
        // has completed and the frame has become inactive.
        t.step_timeout(() => {
          t.step(() => {
            assert_throws_dom("InvalidStateError", () => frame.detectedPlanes);
          });
          resolve();
        }, 0);
      });
    });
  },
  IMMERSIVE_AR_DEVICE,
  "immersive-ar",
  { requiredFeatures: ["plane-detection"] }
);

</script>