xrSession_requestAnimationFrame_data_valid.https.html

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /webxr/xrSession_requestAnimationFrame_data_valid.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<body>

  <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>

    const testName = "RequestAnimationFrame resolves with good data";

    const fakeDeviceInitOptions = TRACKED_IMMERSIVE_DEVICE;

    let testSession;

    function checkView(view) {

      assert_not_equals(view, null);

      assert_not_equals(view.transform, null);

      let inv_view_transform = view.transform.inverse;

      assert_not_equals(inv_view_transform, null);

      assert_not_equals(inv_view_transform.matrix, null);

      assert_equals(inv_view_transform.matrix.length, 16);

    let testFunction = function(session, testDeviceController) {

      testSession = session;

      return session.requestReferenceSpace('local')

        .then((referenceSpace) => new Promise((resolve) => {

          function onFrame(time, xrFrame) {

            assert_true(xrFrame instanceof XRFrame);

            let viewerPose = xrFrame.getViewerPose(referenceSpace);

            assert_not_equals(viewerPose, null);

            for(let i = 0; i < IDENTITY_MATRIX.length; i++) {

              assert_equals(viewerPose.transform.matrix[i], IDENTITY_MATRIX[i]);

            assert_not_equals(viewerPose.views, null);

            assert_equals(viewerPose.views.length, 2);

            checkView(viewerPose.views[0]);

            checkView(viewerPose.views[1]);

            // Test does not complete until the returned promise resolves.

            resolve();

          testSession.requestAnimationFrame(onFrame);

})

);

    xr_session_promise_test(

      testName, testFunction, fakeDeviceInitOptions, 'immersive-vr');

  </script>

</body>