ImageCapture-creation.https.html

Enable keyboard shortcuts

This test has a WPT meta file that expects 4 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /mediacapture-image/ImageCapture-creation.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-streams/permission-helper.js'></script>

<script>

// This test verifies that ImageCapture can be created (or not) with different

// Media Stream Track types (audio, video).

function makeAsyncTest(modifyTrack, message) {

  async_test(function(test) {

    const gotStream = test.step_func(function(stream) {

      assert_equals(stream.getAudioTracks().length, 0);

      assert_equals(stream.getVideoTracks().length, 1);

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

      assert_equals(videoTrack.readyState, 'live');

      assert_true(videoTrack.enabled);

      assert_false(videoTrack.muted);

      var capturer = new ImageCapture(videoTrack);

      assert_equals(capturer.track, videoTrack);

      modifyTrack(videoTrack);

      promise_rejects_dom(test,

                      'InvalidStateError',

                      capturer.grabFrame(),

                      'Should throw InvalidStateError.')

        .then(() => test.done());

});

    const onError = test.unreached_func('Error creating MediaStream.');

    // both permissions are needed at some point, asking for both at once

    setMediaPermission()

      .then(() => navigator.mediaDevices.getUserMedia({video: true}))

      .then(gotStream)

      .catch(onError);

  }, message);

var disableTrack = function(videoTrack) {

  // grabFrame() is rejected if the associated video track is disabled.

  videoTrack.enabled = false;

};

var stopTrack = function(videoTrack) {

  // grabFrame() is rejected if the associated video track is ended.

  videoTrack.stop();

  assert_equals(videoTrack.readyState, 'ended');

};

// Create the rejection tests. Note that grabFrame() would also be rejected if

// the video Track was muted but that's a read-only property of the Track.

makeAsyncTest(disableTrack, 'grabFrame() of a disabled Track');

makeAsyncTest(stopTrack, 'grabFrame() of an ended Track');

var testAudio = async_test(function() {

  navigator.mediaDevices.getUserMedia({audio:true})

  .then(

    this.step_func(function(stream) {

      assert_equals(stream.getAudioTracks().length, 1);

      assert_equals(stream.getVideoTracks().length, 0);

      assert_throws_dom("NotSupportedError",

                        function() {

                          var capturer = new ImageCapture(stream.getAudioTracks()[0]);

},

                        'an ImageCapturer can only be created from a video track');

      this.done();

}))

    .catch(

    this.unreached_func('Error creating MediaStream.'));

}, 'verifies that an ImageCapture cannot be created out of an Audio Track');

var testParameter = test(function() {

  const invalidParameters = [

    "invalid",

    null,

    123,

{},

"",

    true

];

  assert_throws_js(TypeError,

                   function() { var capturer = new ImageCapture(); },

                   'an ImageCapturer cannot be created with no parameter');

  invalidParameters.map(parameter => {

    assert_throws_js(TypeError,

                     function() { var capturer = new ImageCapture(parameter); },

                     `an ImageCapturer cannot be created with a ${parameter} parameter`);

});

}, 'throw "TypeError" if parameter is not MediaStreamTrack.');

</script>