resource-selection-invoke-insert-source-networkState.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-invoke-insert-source-networkState.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>NOT invoking resource selection by inserting &lt;source> when networkState is not NETWORK_EMPTY</title>

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

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

<div id=log></div>

<script>

var loadstartCount = 0;

var s1ErrorCount = 0;

var s2ErrorCount = 0;

var v;

var t = async_test(function(t) {

  v = document.createElement('video');

  v.onloadstart = function() { loadstartCount++; };

  var s1 = document.createElement('source');

  s1.src = 'resources/delayed-broken-video.py';

  s1.onerror = function() { s1ErrorCount++; };

  v.appendChild(s1); // invokes resource selection

  assert_equals(v.networkState, v.NETWORK_NO_SOURCE, 'networkState in first script');

});

</script>

<script>

t.step(function() {

  assert_equals(v.networkState, v.NETWORK_LOADING, 'networkState in second script');

  assert_equals(s1ErrorCount, 0, 's1ErrorCount in second script');

  var s2 = document.createElement('source');

  s2.onerror = t.step_func(function() {

    s2ErrorCount++;

    assert_equals(s1ErrorCount, 1, 's1ErrorCount in s2.onerror');

});

  v.appendChild(s2);

  onload = t.step_func(function() {

    assert_equals(s2ErrorCount, 1, 's2ErrorCount in window.onload');

    assert_equals(loadstartCount, 1, 'loadstartCount in window.onload'); // reliable if https://www.w3.org/Bugs/Public/show_bug.cgi?id=24353 is fixed

    assert_equals(v.networkState, v.NETWORK_NO_SOURCE, 'networkState in window.onload'); // See Waiting step

    t.done();

});

});

</script>