1 files changed, 43 insertions, 0 deletions
diff --git a/testing/web-platform/tests/custom-elements/v0/instantiating/custom-element-constructor-namespace.html b/testing/web-platform/tests/custom-elements/v0/instantiating/custom-element-constructor-namespace.html
new file mode 100644
index 000000000..7278086ac
--- /dev/null
+++ b/testing/web-platform/tests/custom-elements/v0/instantiating/custom-element-constructor-namespace.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Custom element constructor sets local namespace to the namespace from custom element definition</title>
+<meta name="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru">
+<meta name="assert" content="Custom element constructor sets custom element namespace to the namespace in custom element definition">
+<link rel="help" href="http://www.w3.org/TR/custom-elements/#instantiating-custom-elements">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../testcommon.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<script>
+test(function() {
+    var doc = newHTMLDocument();
+    var GeneratedConstructor = doc.registerElement('x-a');
+    var customElement = new GeneratedConstructor();
+    assert_equals(customElement.namespaceURI, HTML_NAMESPACE,
+        'Custom element namespace should be equal to namespace in custom element definition');
+}, 'Custom element constructor sets namespace to the namespace from custom element definition');
+
+
+test(function() {
+    var doc = newHTMLDocument();
+    HTML5_ELEMENTS.forEach(function(tagName) {
+        var obj = doc.createElement(tagName);
+        var name = 'x-b-' + tagName;
+        var proto = Object.create(obj.constructor.prototype);
+        var GeneratedConstructor = doc.registerElement(name, {
+            prototype: proto,
+            extends: tagName
+        });
+        var customElement = new GeneratedConstructor();
+
+        assert_equals(customElement.namespaceURI, HTML_NAMESPACE,
+            'Custom element namespace should be equal to namespace in custom element definition');
+    });
+}, 'Custom element constructor sets namespace to the namespace from custom element definition. ' +
+    'Test constructor of extended HTML element');
+</script>
+</body>
+</html>