1 files changed, 169 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/media-elements/user-interface/muted.html b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/user-interface/muted.html
new file mode 100644
index 0000000000..eb6d2ac688
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/user-interface/muted.html
@@ -0,0 +1,169 @@
+<!doctype html>
+<title>muted</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/media.js"></script>
+<style>video { display: none; }</style>
+<div id=log></div>
+
+<script>
+function test_setting(e, muted, hasAttribute) {
+  assert_equals(e.muted, muted);
+  assert_equals(e.hasAttribute('muted'), hasAttribute);
+
+  e.muted = !e.muted;
+  assert_equals(e.muted, !muted);
+  assert_equals(e.hasAttribute('muted'), hasAttribute);
+
+  e.muted = !e.muted;
+  assert_equals(e.muted, muted);
+  assert_equals(e.hasAttribute('muted'), hasAttribute);
+}
+</script>
+
+<!-- These tests are inside <audio>/<video> so that the steps for updating the
+     muted IDL attribute cannot be delayed until the end tag is parsed. -->
+
+<audio id=a1>
+<script>
+var a1 = document.getElementById('a1');
+
+test(function() {
+  assert_false(a1.muted);
+}, 'getting audio.muted (parser-created)');
+
+test(function() {
+  test_setting(a1, false, false);
+}, 'setting audio.muted (parser-created)');
+</script>
+</audio>
+
+<audio id=a2 muted>
+<script>
+var a2 = document.getElementById('a2');
+
+test(function() {
+  assert_true(a2.muted);
+}, 'getting audio.muted with muted="" (parser-created)');
+
+test(function() {
+  test_setting(a2, true, true);
+}, 'setting audio.muted with muted="" (parser-created)');
+</script>
+</audio>
+
+<video id=v1>
+<script>
+var v1 = document.getElementById('v1');
+
+test(function() {
+  assert_false(v1.muted);
+}, 'getting video.muted (parser-created)');
+
+test(function() {
+  test_setting(v1, false, false);
+}, 'setting video.muted (parser-created)');
+</script>
+</video>
+
+<video id=v2 muted>
+<script>
+var v2 = document.getElementById('v2');
+
+test(function() {
+  assert_true(v2.muted);
+}, 'getting video.muted with muted="" (parser-created)');
+
+test(function() {
+  test_setting(v2, true, true);
+}, 'setting video.muted with muted="" (parser-created)');
+</script>
+</video>
+
+<!-- Negative test to ensure that the load algorithm does not update the
+     muted IDL attribute to match the content attribute. -->
+
+<video id=v3 muted></video>
+<script>
+async_test(function(t) {
+  var v = document.getElementById('v3');
+  assert_true(v.muted);
+  v.muted = false;
+  v.src = 'data:,'; // invokes load()
+  v.addEventListener('error', t.step_func(function() {
+    assert_false(v.muted);
+    t.done();
+  }));
+}, 'getting video.muted with muted="" after load (parser-created)');
+</script>
+
+<script>
+['audio', 'video'].forEach(function(tagName) {
+  test(function() {
+    var m = document.createElement(tagName);
+    assert_false(m.muted);
+  }, 'getting ' + tagName + '.muted (script-created)');
+
+  test(function() {
+    var m = document.createElement(tagName);
+    test_setting(m, false, false);
+  }, 'setting ' + tagName + '.muted (script-created)');
+
+  test(function() {
+    var m = document.createElement(tagName);
+    m.setAttribute('muted', '');
+    assert_false(m.muted);
+  }, 'getting ' + tagName + '.muted with muted="" (script-created)');
+
+  test(function() {
+    var m = document.createElement(tagName);
+    m.setAttribute('muted', '');
+    test_setting(m, false, true);
+  }, 'setting ' + tagName + '.muted with muted="" (script-created)');
+
+  // Spec bug: https://www.w3.org/Bugs/Public/show_bug.cgi?id=25153
+  /*
+  test(function() {
+    var m = document.createElement(tagName);
+    m.setAttribute('muted', '');
+    m = m.cloneNode(false);
+    assert_true(m.hasAttribute('muted'));
+    assert_false(m.muted);
+  }, 'getting ' + tagName + '.muted with muted="" (cloneNode-created)');
+  */
+
+  test(function() {
+    var div = document.createElement('div');
+    div.innerHTML = '<' + tagName + ' muted>';
+    m = div.firstChild;
+    assert_true(m.hasAttribute('muted'));
+    assert_true(m.muted);
+  }, 'getting ' + tagName + '.muted with muted="" (innerHTML-created)');
+
+  test(function() {
+    var id = tagName;
+    assert_equals(document.getElementById(id), null);
+    document.write('<' + tagName + ' id=' + id + ' muted>');
+    m = document.getElementById(id);
+    assert_true(m.hasAttribute('muted'));
+    assert_true(m.muted);
+  }, 'getting ' + tagName + '.muted with muted="" (document.write-created)');
+
+  test(function() {
+    var m = document.createElement(tagName);
+    m.setAttribute('muted', '');
+
+    var c = m.cloneNode(true);
+    assert_true(c.muted);
+  }, 'cloning ' + tagName + ' propagates muted (script-created)');
+
+  test(function() {
+    var div = document.createElement('div');
+    div.innerHTML = '<' + tagName + ' muted>';
+    m = div.firstChild;
+
+    var c = m.cloneNode(true);
+    assert_true(c.muted);
+  }, 'cloning ' + tagName + ' propagates muted (innerHTML-created)');
+});
+</script>