<!DOCTYPE html>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script src="file:///gen/layout_test_data/mojo/public/js/mojo_bindings.js"></script>
<script src="file:///gen/device/vr/public/mojom/vr_service.mojom.js"></script>
<script src="../external/wpt/resources/chromium/webxr-test.js"></script>
<script src="../external/wpt/webxr/resources/webxr_test_constants.js"></script>
<script src="../xr/resources/xr-internal-device-mocking.js"></script>
<script src="../xr/resources/xr-test-utils.js"></script>
<canvas id="webgl-canvas"></canvas>

<script>

let testName = "Ensures hit-test returns expected mock results";

let fakeDeviceInitParams = { supportsImmersive: false,
                             supportsEnvironmentIntegration: true };

let requestSessionOptions = [ {mode: 'legacy-inline-ar' } ];

let expectedHitMatrix = [1, 0, 0, 1,
                         0, 1, 0, 2,
                         0, 0, 1, 3,
                         0, 0, 0, 1];

let testFunction = function(session, t, fakeDeviceController) {
  assert_equals(session.mode, 'legacy-inline-ar');
  assert_not_equals(session.environmentBlendMode, 'opaque');
  return session.requestReferenceSpace({ type: "stationary", subtype: "eye-level" }).then((referenceSpace) => {
    let ray = new XRRay({x : 0.0, y : 0.0, z : 0.0}, {x : 1.0, y : 0.0, z: 0.0});

    let hit = new device.mojom.XRHitResult();
    hit.hitMatrix = expectedHitMatrix;

    fakeDeviceController.setHitTestResults({ results: [hit] });

    return session.requestHitTest(ray, referenceSpace).then(
        (hitResults) => {
          t.step(() => {
            // Test that hit results are what we expected.
            assert_equals(hitResults.length, 1);
            assert_equals(hitResults[0].hitMatrix.length, 16);
            assert_matrices_approx_equal(
              hitResults[0].hitMatrix,
              expectedHitMatrix,
              FLOAT_EPSILON,
              "Hit test matrix does not equals input test matrix");
          });
        });
    });
};

xr_session_promise_test(
  testFunction, fakeDeviceInitParams, requestSessionOptions, testName);

</script>