<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/mediacapture-image/resources/imagecapture-helpers.js"></script>
<body>
<canvas id='canvas' width=10 height=10/>
</body>
<script>

var canvas = document.getElementById('canvas');
var context = canvas.getContext('2d');
context.fillStyle = 'red';
context.fillRect(0, 0, 10, 10);

// This test verifies that MediaStreamTrack.applyConstraints() rejects if any
// passed constraint is unsupported or outside its allowed range.
var makePromiseTest = function(getConstraint) {
  image_capture_test(async (t, imageCaptureTest) => {
    imageCaptureTest.mockImageCapture().state().supportsTorch = false;

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

    // |videoTrack|'s capabilities gathering, just like the actual capture,
    // is a process kicked off right after creation, we introduce a small
    // delay to allow for those to be collected, since they are needed to
    // understand which constraints are supported in applyConstraints().
    // TODO(mcasas): this shouldn't be needed, https://crbug.com/711524.
    await new Promise(resolve => step_timeout(resolve, 100));

    try {
      const constraints = {
        advanced : [ getConstraint(imageCaptureTest.mockImageCapture().state()) ]
      };

      await videoTrack.applyConstraints(constraints);
      assert_unreached('expected applyConstraints to reject');
    } catch (error) {
      assert_equals(error.name, 'NotSupportedError');
    }
  });
};

const constraintGenerators = [
  capabilities => ({ whiteBalanceMode: 'manual' }),
  capabilities => ({ exposureMode: 'none' }),
  capabilities => ({ focusMode: 'continuous' }),
  capabilities => ({
    exposureCompensation: capabilities.exposureCompensation.max + 1
  }),
  capabilities => ({
    exposureCompensation: capabilities.exposureCompensation.min - 1
  }),
  capabilities => ({
    colorTemperature: capabilities.colorTemperature.max + 1
  }),
  capabilities => ({
    colorTemperature: capabilities.colorTemperature.min - 1
  }),
  capabilities => ({ iso: capabilities.iso.max + 1 }),
  capabilities => ({ iso: capabilities.iso.min - 1 }),
  capabilities => ({ brightness: capabilities.brightness.max + 1 }),
  capabilities => ({ brightness: capabilities.brightness.min - 1 }),
  capabilities => ({ contrast: capabilities.contrast.max + 1 }),
  capabilities => ({ contrast: capabilities.contrast.min - 1 }),
  capabilities => ({ saturation: capabilities.saturation.max + 1 }),
  capabilities => ({ saturation: capabilities.saturation.min - 1 }),
  capabilities => ({ sharpness: capabilities.sharpness.max + 1 }),
  capabilities => ({ sharpness: capabilities.sharpness.min - 1 }),
  capabilities => ({ zoom: capabilities.zoom.max + 1 }),
  capabilities => ({ zoom: capabilities.zoom.min - 1 }),
  capabilities => ({ torch: true }),
];

for (key in constraintGenerators) {
  generate_tests(
      makePromiseTest, [[
        'MediaStreamTrack.applyConstraints(constraints) rejects with bad' +
        ' constraints, #' + key,
        constraintGenerators[key]
      ]]);
}

</script>