<!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>
<canvas></canvas>
<script>

  let testName =
    "Immersive XRSession requests with no supported device should reject";

  let fakeDeviceInitParams = {
    supportsImmersive: true,
    supportedModes: ["inline", "immersive-vr"],
    views: VALID_VIEWS,
    viewerOrigin: IDENTITY_TRANSFORM,
    supportedFeatures: [
    "viewer",
    "local",
    "local-floor"]
  };


  xr_promise_test(testName,
    (t) => {
    function session_resolves(sessionMode, sessionInit) {
      return navigator.xr.requestSession(sessionMode, sessionInit)
        .then((session) => {
          return session.end();
        });
    }

    return navigator.xr.test.simulateDeviceConnection(fakeDeviceInitParams)
      .then((controller) =>
        promise_simulate_user_activation(() => {
          // Attempting to request required features that aren't supported by
          // the device should reject.

          return promise_rejects_dom(t, "NotSupportedError",
            navigator.xr.requestSession("immersive-vr", {
              requiredFeatures: ['bounded-floor']
            }))
        }).then(() => promise_simulate_user_activation(() => {
            // Attempting to request with an unsupported feature as optional
            // should succeed
            return session_resolves("immersive-vr", {
              optionalFeatures: ['bounded-floor']
            });
        })).then(() => promise_simulate_user_activation(() => {
          // Attempting to request with supported features only should succeed.
          return session_resolves("immersive-vr", {
            requiredFeatures: ['local', 'local-floor']
          })
        }))
      );
  });

</script>
</body>