MediaStreamTrack-getConstraints.https.html

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This test has a WPT meta file that expects 16 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /mediacapture-image/MediaStreamTrack-getConstraints.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/resources/testdriver.js"></script>

<script src="/resources/testdriver-vendor.js"></script>

<script src="/mediacapture-image/resources/imagecapture-helpers.js"></script>

<script>

const constraints = { whiteBalanceMode     : "single-shot",

                      exposureMode         : "manual",

                      focusMode            : "single-shot",

                      exposureCompensation : 133.77,

                      exposureTime         : 10000, // in nano-seconds.

                      colorTemperature     : 6000,

                      iso                  : 120.0,

                      brightness           : 3,

                      contrast             : 4,

                      saturation           : 5,

                      sharpness            : 6,

                      focusDistance        : 7,

                      pan                  : 8,

                      tilt                 : 9,

                      zoom                 : 3.141592

                      // TODO: torch https://crbug.com/700607.

};

// These tests verify that MediaStreamTrack.getConstraints() exists and that,

// returns the constraints passed beforehand with applyConstraints.

function makePromiseTest(constraint) {

  image_capture_test(async function(t) {

    await test_driver.set_permission({name: 'camera', panTiltZoom: true},

        'granted');

    let stream = await navigator.mediaDevices.getUserMedia({video: true});

    let videoTrack = stream.getVideoTracks()[0];

    let constraintsIn = {advanced : [ constraint ]};

    await videoTrack.applyConstraints(constraintsIn);

    assert_object_equals(videoTrack.getConstraints(), constraintsIn, "constraints");

    // Clear constraints by sending an empty constraint set.

    await videoTrack.applyConstraints({});

    assert_object_equals(videoTrack.getConstraints(), {}, "constraints");

});

};

// Send each line of |constraints| in turn and then the whole dictionary.

for (key in constraints) {

  let one_constraint = {};

  one_constraint[key] = constraints[key];

  generate_tests(

      makePromiseTest,

      [[ 'MediaStreamTrack.getConstraints(), key: ' + key, one_constraint ]]);

generate_tests(makePromiseTest, [

  ["MediaStreamTrack.getConstraints(), complete ", constraints],

]);

</script>