1 files changed, 101 insertions, 0 deletions
diff --git a/testing/web-platform/tests/custom-elements/v0/instantiating/custom-element-type-local-name-and-is-attribute.html b/testing/web-platform/tests/custom-elements/v0/instantiating/custom-element-type-local-name-and-is-attribute.html
new file mode 100644
index 000000000..c55e2cc25
--- /dev/null
+++ b/testing/web-platform/tests/custom-elements/v0/instantiating/custom-element-type-local-name-and-is-attribute.html
@@ -0,0 +1,101 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Instantiation of custom element: the custom tag must win over the type extension</title>
+<meta name="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru">
+<meta name="author" title="Aleksei Yu. Semenov" href="mailto:a.semenov@unipro.ru">
+<meta name="assert" content="If both types of custom element types are provided at the time of element's instantiation, the custom tag must win over the type extension">
+<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');
+    doc.registerElement('x-b');
+    doc.body.innerHTML = '<x-a id="x-a" is="x-b"></x-a>';
+    var customElement = doc.querySelector('#x-a');
+
+    assert_equals(Object.getPrototypeOf(customElement), GeneratedConstructor.prototype,
+        'Custom element type should be the type, specified in the local name of the element');
+}, 'Custom element type must be taken from the local name of the element even ' +
+    'if IS attribute provided.');
+
+
+test(function() {
+    var doc = newHTMLDocument();
+    doc.registerElement('x-d');
+    doc.body.innerHTML = '<x-c id="x-c" is="x-d"></x-c>';
+    var customElement = doc.querySelector('#x-c');
+
+    var GeneratedConstructor = doc.registerElement('x-c');
+    assert_equals(Object.getPrototypeOf(customElement), GeneratedConstructor.prototype,
+        'Custom element type should be the type, specified in the local name of the element');
+}, 'Custom element type must be taken from the local name of the element even ' +
+    'if IS attribute provided. Custom element is unresolved at first');
+
+
+test(function() {
+    var doc = newHTMLDocument();
+    var GeneratedConstructor = doc.registerElement('x-f');
+    doc.body.innerHTML = '<x-f id="x-f" is="x-e"></x-f>';
+    var customElement = doc.querySelector('#x-f');
+    assert_equals(Object.getPrototypeOf(customElement), GeneratedConstructor.prototype,
+        'Custom element type should be the type, specified in local name of the element');
+
+    doc.registerElement('x-e');
+    assert_equals(Object.getPrototypeOf(customElement), GeneratedConstructor.prototype,
+        'Custom element type should be the type, specified in local name of the element');
+}, 'Custom element type must be taken from the local name of the element even if IS ' +
+    'attribute provided. There\'s no definition for the value of IS attribute at first');
+
+
+test(function() {
+    var doc = newHTMLDocument();
+    var GeneratedConstructor = doc.registerElement('x-element');
+    HTML5_ELEMENTS.forEach(function(tagName) {
+        var obj = doc.createElement(tagName);
+        var name = 'x-d-' + tagName;
+        doc.registerElement(name, {
+            prototype: Object.create(obj.constructor.prototype),
+            extends: tagName
+        });
+        doc.body.innerHTML = '<x-element id="x-element" is="' + name + '"></x-element>';
+        var customElement = doc.querySelector('#x-element');
+        assert_equals(Object.getPrototypeOf(customElement), GeneratedConstructor.prototype,
+            'Custom element type should be the local name of the custom element');
+    });
+}, 'Custom element type must be taken from the local name of the element even ' +
+    'if IS attribute provided. IS attribute refers to another custom element type, ' +
+    'which extends HTML5 elements');
+
+
+test(function() {
+    var doc = newHTMLDocument();
+    doc.registerElement('y-element');
+
+    HTML5_ELEMENTS.forEach(function(tagName) {
+        var obj = doc.createElement(tagName);
+        var name = 'x-e-' + tagName;
+        var id = 'x-e-' + tagName;
+        doc.registerElement(name, {
+            prototype: Object.create(obj.constructor.prototype),
+            extends: tagName
+        });
+        doc.body.innerHTML = '<' + name + ' id="' + id + '" is="y-element"></' + name + '>';
+        var customElement = doc.querySelector('#' + id);
+        // We have <x-e-a is='y-element'>. Custom element type for this will be
+        // HTMLElement, not x-e-a (for x-e-a there should be <a is='x-e-a'>...)
+        assert_class_string(customElement, 'HTMLElement',
+            'Custom element type should be HTMLElement');
+    });
+}, 'Custom element type must be taken from the local name of the custom element even ' +
+    'if IS attribute provided. The element extends HTML5 elements, IS attribute refers ' +
+    'to another custom element type.');
+</script>
+</body>
+</html>