chromium/src/third_party/blink/web_tests/external/wpt/webxr/depth-sensing/inactiveFrameTests.js

'use strict';

const inactiveFrameTestFunctionGenerator = function(isCpuOptimized) {
  return (session, controller, t, sessionObjects) => {
    return session.requestReferenceSpace('viewer').then((viewerSpace) => {
      let callbacksKickedOff = false;
      let callbackCounter = 0;

      const glBinding = new XRWebGLBinding(session, sessionObjects.gl);

      const rafCb = function(time, frame) {
        const pose = frame.getViewerPose(viewerSpace);
        for(const view of pose.views) {
          const callback = () => {
            t.step(() => {
              assert_throws_dom("InvalidStateError",
                                () => isCpuOptimized ? frame.getDepthInformation(view)
                                                     : glBinding.getDepthInformation(view),
                                "getDepthInformation() should throw when ran outside RAF");
            });
            callbackCounter--;
          }

          t.step_timeout(callback, 10);
          callbackCounter++;
        }

        callbacksKickedOff = true;
      };

      session.requestAnimationFrame(rafCb);

      return t.step_wait(() => callbacksKickedOff && (callbackCounter == 0));
    });
  };
};