Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 19:33:14 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 19:33:14 +0000
commit: 36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree: 105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/tests/custom-elements/upgrading
parent: Initial commit. (diff)
download: firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
6 files changed, 601 insertions, 0 deletions
diff --git a/testing/web-platform/tests/custom-elements/upgrading/Document-importNode-customized-builtins.html b/testing/web-platform/tests/custom-elements/upgrading/Document-importNode-customized-builtins.html
new file mode 100644
index 0000000000..91c9ea8aee
--- /dev/null
+++ b/testing/web-platform/tests/custom-elements/upgrading/Document-importNode-customized-builtins.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<link rel="help" href="https://dom.spec.whatwg.org/#dom-document-importnode">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/custom-elements-helpers.js"></script>
+<body>
+<script>
+test_with_window((w, doc) => {
+  class MyDiv extends HTMLDivElement {}
+  class MyDiv2 extends w.HTMLDivElement {}
+  customElements.define('my-div', MyDiv, { extends: 'div' });
+  w.customElements.define('my-div', MyDiv2, { extends: 'div' });
+
+  let original = document.createElement('div', { is: 'my-div' });
+  assert_true(original instanceof MyDiv);
+
+  let imported = doc.importNode(original);
+  assert_true(imported instanceof MyDiv2);
+}, 'built-in: document.importNode() should import custom elements successfully');
+
+test_with_window((w, doc) => {
+  class MyDiv2 extends w.HTMLDivElement {}
+  w.customElements.define('my-div2', MyDiv2, { extends: 'div' });
+
+  let original = document.createElement('div', { is: 'my-div2' });
+  assert_equals(original.constructor, HTMLDivElement);
+
+  let imported = doc.importNode(original);
+  assert_true(imported instanceof MyDiv2);
+}, 'built-in: document.importNode() should import "undefined" custom elements successfully');
+</script>
+</body>
diff --git a/testing/web-platform/tests/custom-elements/upgrading/Document-importNode.html b/testing/web-platform/tests/custom-elements/upgrading/Document-importNode.html
new file mode 100644
index 0000000000..3da4ccf46a
--- /dev/null
+++ b/testing/web-platform/tests/custom-elements/upgrading/Document-importNode.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<link rel="help" href="https://dom.spec.whatwg.org/#dom-document-importnode">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/custom-elements-helpers.js"></script>
+<body>
+<script>
+test_with_window((w, doc) => {
+  class MyElement extends HTMLElement {}
+  class MyElement2 extends w.HTMLElement {}
+  customElements.define('my-element', MyElement);
+  w.customElements.define('my-element', MyElement2);
+
+  let original = document.createElement('my-element');
+  assert_true(original instanceof MyElement);
+
+  let imported = doc.importNode(original);
+  assert_true(imported instanceof MyElement2);
+}, 'autonomous: document.importNode() should import custom elements successfully');
+
+test_with_window((w, doc) => {
+  class MyElement3 extends w.HTMLElement {}
+  w.customElements.define('my-element3', MyElement3);
+
+  let original = document.createElement('my-element3');
+  assert_equals(original.constructor, HTMLElement);
+
+  let imported = doc.importNode(original);
+  assert_true(imported instanceof MyElement3);
+}, 'autonomous: document.importNode() should import "undefined" custom elements successfully');
+</script>
+</body>
diff --git a/testing/web-platform/tests/custom-elements/upgrading/Node-cloneNode-customized-builtins.html b/testing/web-platform/tests/custom-elements/upgrading/Node-cloneNode-customized-builtins.html
new file mode 100644
index 0000000000..5e1122cc84
--- /dev/null
+++ b/testing/web-platform/tests/custom-elements/upgrading/Node-cloneNode-customized-builtins.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Custom Elements: Upgrading</title>
+<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
+<meta name="assert" content="Node.prototype.cloneNode should upgrade a custom element">
+<link rel="help" href="https://html.spec.whatwg.org/#upgrades">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/custom-elements-helpers.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<script>
+setup({allow_uncaught_exception:true});
+
+test(function () {
+    class MyDiv1 extends HTMLDivElement {};
+    class MyDiv2 extends HTMLDivElement {};
+    class MyDiv3 extends HTMLDivElement {};
+    customElements.define('my-div1', MyDiv1, { extends: 'div' });
+    customElements.define('my-div2', MyDiv2, { extends: 'div' });
+
+    let instance = document.createElement('div', { is: 'my-div1'});
+    assert_true(instance instanceof MyDiv1);
+    instance.setAttribute('is', 'my-div2');
+    let clone = instance.cloneNode(false);
+    assert_not_equals(instance, clone);
+    assert_true(clone instanceof MyDiv1,
+        'A cloned custom element must be an instance of the custom element even with an inconsistent "is" attribute');
+
+    let instance3 = document.createElement('div', { is: 'my-div3'});
+    assert_false(instance3 instanceof MyDiv3);
+    instance3.setAttribute('is', 'my-div2');
+    let clone3 = instance3.cloneNode(false);
+    assert_not_equals(instance3, clone);
+    customElements.define('my-div3', MyDiv3, { extends: 'div' });
+    document.body.appendChild(instance3);
+    document.body.appendChild(clone3);
+    assert_true(instance3 instanceof MyDiv3,
+        'An undefined element must be upgraded even with an inconsistent "is" attribute');
+    assert_true(clone3 instanceof MyDiv3,
+        'A cloned undefined element must be upgraded even with an inconsistent "is" attribute');
+}, 'Node.prototype.cloneNode(false) must be able to clone as a customized built-in element when it has an inconsistent "is" attribute');
+
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/custom-elements/upgrading/Node-cloneNode.html b/testing/web-platform/tests/custom-elements/upgrading/Node-cloneNode.html
new file mode 100644
index 0000000000..1a05e96964
--- /dev/null
+++ b/testing/web-platform/tests/custom-elements/upgrading/Node-cloneNode.html
@@ -0,0 +1,206 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Custom Elements: Upgrading</title>
+<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
+<meta name="assert" content="Node.prototype.cloneNode should upgrade a custom element">
+<link rel="help" href="https://html.spec.whatwg.org/#upgrades">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/custom-elements-helpers.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<script>
+setup({allow_uncaught_exception:true});
+
+test(function () {
+    class MyCustomElement extends HTMLElement {}
+    customElements.define('my-custom-element', MyCustomElement);
+
+    var instance = document.createElement('my-custom-element');
+    assert_true(instance instanceof HTMLElement);
+    assert_true(instance instanceof MyCustomElement);
+
+    var clone = instance.cloneNode(false);
+    assert_not_equals(instance, clone);
+    assert_true(clone instanceof HTMLElement,
+        'A cloned custom element must be an instance of HTMLElement');
+    assert_true(clone instanceof MyCustomElement,
+        'A cloned custom element must be an instance of the custom element');
+}, 'Node.prototype.cloneNode(false) must be able to clone a custom element');
+
+test(function () {
+    class AutonomousCustomElement extends HTMLElement {};
+    class IsCustomElement extends HTMLElement {};
+
+    customElements.define('autonomous-custom-element', AutonomousCustomElement);
+    customElements.define('is-custom-element', IsCustomElement);
+
+    var instance = document.createElement('autonomous-custom-element', { is: "is-custom-element"});
+    assert_true(instance instanceof HTMLElement);
+    assert_true(instance instanceof AutonomousCustomElement);
+
+    var clone = instance.cloneNode(false);
+    assert_not_equals(instance, clone);
+    assert_true(clone instanceof HTMLElement,
+        'A cloned custom element must be an instance of HTMLElement');
+    assert_true(clone instanceof AutonomousCustomElement,
+        'A cloned custom element must be an instance of the custom element');
+}, 'Node.prototype.cloneNode(false) must be able to clone as a autonomous custom element when it contains is attribute');
+
+test_with_window(function (contentWindow) {
+    var contentDocument = contentWindow.document;
+    class MyCustomElement extends contentWindow.HTMLElement {}
+    contentWindow.customElements.define('my-custom-element', MyCustomElement);
+
+    var instance = contentDocument.createElement('my-custom-element');
+    assert_true(instance instanceof contentWindow.HTMLElement);
+    assert_true(instance instanceof MyCustomElement);
+
+    var clone = instance.cloneNode(false);
+    assert_not_equals(instance, clone);
+    assert_true(clone instanceof contentWindow.HTMLElement,
+        'A cloned custom element must be an instance of HTMLElement');
+    assert_true(clone instanceof MyCustomElement,
+        'A cloned custom element must be an instance of the custom element');
+}, 'Node.prototype.cloneNode(false) must be able to clone a custom element inside an iframe');
+
+test_with_window(function (contentWindow) {
+    var contentDocument = contentWindow.document;
+    class MyCustomElement extends contentWindow.HTMLElement { }
+    contentWindow.customElements.define('my-custom-element', MyCustomElement);
+
+    var instance = contentDocument.createElement('my-custom-element');
+    var container = contentDocument.createElement('div');
+    container.appendChild(instance);
+
+    var containerClone = container.cloneNode(true);
+    assert_true(containerClone instanceof contentWindow.HTMLDivElement);
+
+    var clone = containerClone.firstChild;
+    assert_not_equals(instance, clone);
+    assert_true(clone instanceof contentWindow.HTMLElement,
+        'A cloned custom element must be an instance of HTMLElement');
+    assert_true(clone instanceof MyCustomElement,
+        'A cloned custom element must be an instance of the custom element');
+}, 'Node.prototype.cloneNode(true) must be able to clone a descendent custom element');
+
+test_with_window(function (contentWindow) {
+    var parentNodeInConstructor;
+    var previousSiblingInConstructor;
+    var nextSiblingInConstructor;
+    class MyCustomElement extends contentWindow.HTMLElement {
+        constructor() {
+            super();
+            parentNodeInConstructor = this.parentNode;
+            previousSiblingInConstructor = this.previousSibling;
+            nextSiblingInConstructor = this.nextSibling;
+        }
+    }
+    contentWindow.customElements.define('my-custom-element', MyCustomElement);
+
+    var contentDocument = contentWindow.document;
+    var instance = contentDocument.createElement('my-custom-element');
+    var siblingBeforeInstance = contentDocument.createElement('b');
+    var siblingAfterInstance = contentDocument.createElement('a');
+    var container = contentDocument.createElement('div');
+    container.appendChild(siblingBeforeInstance);
+    container.appendChild(instance);
+    container.appendChild(siblingAfterInstance);
+
+    var containerClone = container.cloneNode(true);
+
+    assert_equals(parentNodeInConstructor, containerClone,
+        'An upgraded element must have its parentNode set before the custom element constructor is called');
+    assert_equals(previousSiblingInConstructor, containerClone.firstChild,
+        'An upgraded element must have its previousSibling set before the custom element constructor is called');
+    assert_equals(nextSiblingInConstructor, containerClone.lastChild,
+        'An upgraded element must have its nextSibling set before the custom element constructor is called');
+}, 'Node.prototype.cloneNode(true) must set parentNode, previousSibling, and nextSibling before upgrading custom elements');
+
+// The error reporting isn't clear yet when multiple globals involved in custom
+// element, see w3c/webcomponents#635, so using test_with_window is not a good
+// idea here.
+test(function () {
+    class MyCustomElement extends HTMLElement {
+        constructor(doNotCreateItself) {
+            super();
+            if (!doNotCreateItself)
+                new MyCustomElement(true);
+        }
+    }
+    customElements.define('my-custom-element-constructed-after-super', MyCustomElement);
+
+    var instance = new MyCustomElement(false);
+    var uncaughtError;
+    window.onerror = function (message, url, lineNumber, columnNumber, error) { uncaughtError = error; return true; }
+    instance.cloneNode(false);
+    assert_equals(uncaughtError.name, 'TypeError');
+}, 'HTMLElement constructor must throw an TypeError when the top of the construction stack is marked AlreadyConstructed'
+    + ' due to a custom element constructor constructing itself after super() call');
+
+test(function () {
+    class MyCustomElement extends HTMLElement {
+        constructor(doNotCreateItself) {
+            if (!doNotCreateItself)
+                new MyCustomElement(true);
+            super();
+        }
+    }
+    customElements.define('my-custom-element-constructed-before-super', MyCustomElement);
+
+    var instance = new MyCustomElement(false);
+    var uncaughtError;
+    window.onerror = function (message, url, lineNumber, columnNumber, error) { uncaughtError = error; return true; }
+    instance.cloneNode(false);
+    assert_equals(uncaughtError.name, 'TypeError');
+}, 'HTMLElement constructor must throw an TypeError when the top of the construction stack is marked AlreadyConstructed'
+    + ' due to a custom element constructor constructing itself before super() call');
+
+test(function () {
+    var returnSpan = false;
+    class MyCustomElement extends HTMLElement {
+        constructor() {
+            super();
+            if (returnSpan)
+                return document.createElement('span');
+        }
+    }
+    customElements.define('my-custom-element-return-another', MyCustomElement);
+
+    var instance = new MyCustomElement(false);
+    returnSpan = true;
+    var uncaughtError;
+    window.onerror = function (message, url, lineNumber, columnNumber, error) { uncaughtError = error; return true; }
+    instance.cloneNode(false);
+    assert_equals(uncaughtError.name, 'TypeError');
+}, 'Upgrading a custom element must throw TypeError when the custom element\'s constructor returns another element');
+
+test(function () {
+    var instance = document.createElement('my-custom-element-throw-exception');
+    document.body.appendChild(instance);
+
+    var calls = [];
+    class MyCustomElement extends HTMLElement {
+        constructor() {
+            super();
+            calls.push(this);
+            throw 'bad';
+        }
+    }
+
+    var uncaughtError;
+    window.onerror = function (message, url, lineNumber, columnNumber, error) { uncaughtError = error; return true; }
+    customElements.define('my-custom-element-throw-exception', MyCustomElement);
+    assert_equals(uncaughtError, 'bad');
+
+    assert_array_equals(calls, [instance]);
+    document.body.removeChild(instance);
+    document.body.appendChild(instance);
+    assert_array_equals(calls, [instance]);
+}, 'Inserting an element must not try to upgrade a custom element when it had already failed to upgrade once');
+
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/custom-elements/upgrading/upgrading-enqueue-reactions.html b/testing/web-platform/tests/custom-elements/upgrading/upgrading-enqueue-reactions.html
new file mode 100644
index 0000000000..8238eee624
--- /dev/null
+++ b/testing/web-platform/tests/custom-elements/upgrading/upgrading-enqueue-reactions.html
@@ -0,0 +1,158 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Custom Elements: Upgrading custom elements should enqueue attributeChanged and connected callbacks</title>
+<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
+<meta name="assert" content="Upgrading custom elements should enqueue attributeChanged and connected callbacksml">
+<meta name="help" content="https://html.spec.whatwg.org/#upgrades">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/custom-elements-helpers.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<script>
+setup({allow_uncaught_exception:true});
+
+test_with_window(function (contentWindow) {
+    const contentDocument = contentWindow.document;
+    contentDocument.write('<test-element id="some" title="This is a test">');
+
+    const undefinedElement = contentDocument.querySelector('test-element');
+    assert_equals(Object.getPrototypeOf(undefinedElement), contentWindow.HTMLElement.prototype);
+
+    let log = [];
+    class TestElement extends contentWindow.HTMLElement {
+        constructor() {
+            super();
+            log.push(create_constructor_log(this));
+        }
+        attributeChangedCallback(...args) {
+            log.push(create_attribute_changed_callback_log(this, ...args));
+        }
+        static get observedAttributes() { return ['id', 'title']; }
+    }
+    contentWindow.customElements.define('test-element', TestElement);
+    assert_equals(Object.getPrototypeOf(undefinedElement), TestElement.prototype);
+
+    assert_equals(log.length, 3);
+    assert_constructor_log_entry(log[0], undefinedElement);
+    assert_attribute_log_entry(log[1], {name: 'id', oldValue: null, newValue: 'some', namespace: null});
+    assert_attribute_log_entry(log[2], {name: 'title', oldValue: null, newValue: 'This is a test', namespace: null});
+}, 'Upgrading a custom element must enqueue attributeChangedCallback on each attribute');
+
+test_with_window(function (contentWindow) {
+    const contentDocument = contentWindow.document;
+    contentDocument.write('<test-element id="some" title="This is a test" class="foo">');
+
+    const undefinedElement = contentDocument.querySelector('test-element');
+    assert_equals(Object.getPrototypeOf(undefinedElement), contentWindow.HTMLElement.prototype);
+
+    let log = [];
+    class TestElement extends contentWindow.HTMLElement {
+        constructor() {
+            super();
+            log.push(create_constructor_log(this));
+        }
+        attributeChangedCallback(...args) {
+            log.push(create_attribute_changed_callback_log(this, ...args));
+        }
+        static get observedAttributes() { return ['class', 'id']; }
+    }
+    contentWindow.customElements.define('test-element', TestElement);
+    assert_equals(Object.getPrototypeOf(undefinedElement), TestElement.prototype);
+
+    assert_equals(log.length, 3);
+    assert_constructor_log_entry(log[0], undefinedElement);
+    assert_attribute_log_entry(log[1], {name: 'id', oldValue: null, newValue: 'some', namespace: null});
+    assert_attribute_log_entry(log[2], {name: 'class', oldValue: null, newValue: 'foo', namespace: null});
+}, 'Upgrading a custom element not must enqueue attributeChangedCallback on unobserved attributes');
+
+test_with_window(function (contentWindow) {
+    const contentDocument = contentWindow.document;
+    contentDocument.write('<test-element id="some" title="This is a test" class="foo">');
+
+    const undefinedElement = contentDocument.querySelector('test-element');
+    assert_equals(Object.getPrototypeOf(undefinedElement), contentWindow.HTMLElement.prototype);
+
+    let log = [];
+    class TestElement extends contentWindow.HTMLElement {
+        constructor() {
+            super();
+            log.push(create_constructor_log(this));
+        }
+        connectedCallback(...args) {
+            log.push(create_connected_callback_log(this, ...args));
+        }
+    }
+    contentWindow.customElements.define('test-element', TestElement);
+    assert_equals(Object.getPrototypeOf(undefinedElement), TestElement.prototype);
+
+    assert_equals(log.length, 2);
+    assert_constructor_log_entry(log[0], undefinedElement);
+    assert_connected_log_entry(log[1], undefinedElement);
+}, 'Upgrading a custom element must enqueue connectedCallback if the element in the document');
+
+test_with_window(function (contentWindow) {
+    const contentDocument = contentWindow.document;
+    contentDocument.write('<test-element id="some" title="This is a test" class="foo">');
+
+    const undefinedElement = contentDocument.querySelector('test-element');
+    assert_equals(Object.getPrototypeOf(undefinedElement), contentWindow.HTMLElement.prototype);
+
+    let log = [];
+    class TestElement extends contentWindow.HTMLElement {
+        constructor() {
+            super();
+            log.push(create_constructor_log(this));
+        }
+        connectedCallback(...args) {
+            log.push(create_connected_callback_log(this, ...args));
+        }
+        attributeChangedCallback(...args) {
+            log.push(create_attribute_changed_callback_log(this, ...args));
+        }
+        static get observedAttributes() { return ['class', 'id']; }
+    }
+    contentWindow.customElements.define('test-element', TestElement);
+    assert_equals(Object.getPrototypeOf(undefinedElement), TestElement.prototype);
+
+    assert_equals(log.length, 4);
+    assert_constructor_log_entry(log[0], undefinedElement);
+    assert_attribute_log_entry(log[1], {name: 'id', oldValue: null, newValue: 'some', namespace: null});
+    assert_attribute_log_entry(log[2], {name: 'class', oldValue: null, newValue: 'foo', namespace: null});
+    assert_connected_log_entry(log[3], undefinedElement);
+}, 'Upgrading a custom element must enqueue attributeChangedCallback before connectedCallback');
+
+test_with_window(function (contentWindow) {
+    const contentDocument = contentWindow.document;
+    contentDocument.write('<test-element id="some" title="This is a test" class="foo">');
+
+    const undefinedElement = contentDocument.querySelector('test-element');
+    assert_equals(Object.getPrototypeOf(undefinedElement), contentWindow.HTMLElement.prototype);
+
+    let log = [];
+    class TestElement extends contentWindow.HTMLElement {
+        constructor() {
+            super();
+            log.push(create_constructor_log(this));
+            throw 'Exception thrown as a part of test';
+        }
+        connectedCallback(...args) {
+            log.push(create_connected_callback_log(this, ...args));
+        }
+        attributeChangedCallback(...args) {
+            log.push(create_attribute_changed_callback_log(this, ...args));
+        }
+        static get observedAttributes() { return ['class', 'id']; }
+    }
+    contentWindow.customElements.define('test-element', TestElement);
+    assert_equals(Object.getPrototypeOf(undefinedElement), TestElement.prototype);
+
+    assert_equals(log.length, 1);
+    assert_constructor_log_entry(log[0], undefinedElement);
+}, 'Upgrading a custom element must not invoke attributeChangedCallback and connectedCallback when the element failed to upgrade');
+
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/custom-elements/upgrading/upgrading-parser-created-element.html b/testing/web-platform/tests/custom-elements/upgrading/upgrading-parser-created-element.html
new file mode 100644
index 0000000000..0f7f95786d
--- /dev/null
+++ b/testing/web-platform/tests/custom-elements/upgrading/upgrading-parser-created-element.html
@@ -0,0 +1,125 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Custom Elements: Upgrading unresolved elements</title>
+<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
+<meta name="assert" content="HTML parser must add an unresolved custom element to the upgrade candidates map">
+<link rel="help" href="https://html.spec.whatwg.org/#upgrades">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<my-custom-element></my-custom-element>
+<instantiates-itself-after-super></instantiates-itself-after-super>
+<instantiates-itself-before-super></instantiates-itself-before-super>
+<my-other-element id="instance"></my-other-element>
+<my-other-element id="otherInstance"></my-other-element>
+<not-an-element></not-an-element>
+<not-an-html-element></not-an-html-element>
+<script>
+
+setup({allow_uncaught_exception:true});
+
+test(function () {
+    class MyCustomElement extends HTMLElement { }
+
+    var instance = document.querySelector('my-custom-element');
+    assert_true(instance instanceof HTMLElement);
+    assert_false(instance instanceof HTMLUnknownElement,
+        'an unresolved custom element should not be an instance of HTMLUnknownElement');
+    assert_false(instance instanceof MyCustomElement);
+
+    customElements.define('my-custom-element', MyCustomElement);
+
+    assert_true(instance instanceof HTMLElement);
+    assert_true(instance instanceof MyCustomElement,
+        'Calling customElements.define must upgrade existing custom elements');
+
+}, 'Element.prototype.createElement must add an unresolved custom element to the upgrade candidates map');
+
+test(function () {
+    class InstantiatesItselfAfterSuper extends HTMLElement {
+        constructor(doNotCreateItself) {
+            super();
+            if (!doNotCreateItself)
+                new InstantiatesItselfAfterSuper(true);
+        }
+    }
+
+    var uncaughtError;
+    window.onerror = function (message, url, lineNumber, columnNumber, error) { uncaughtError = error; return true; }
+    customElements.define('instantiates-itself-after-super', InstantiatesItselfAfterSuper);
+    assert_equals(uncaughtError.name, 'TypeError');
+}, 'HTMLElement constructor must throw an TypeError when the top of the construction stack is marked AlreadyConstructed'
+    + ' due to a custom element constructor constructing itself after super() call');
+
+test(function () {
+    class InstantiatesItselfBeforeSuper extends HTMLElement {
+        constructor(doNotCreateItself) {
+            if (!doNotCreateItself)
+                new InstantiatesItselfBeforeSuper(true);
+            super();
+        }
+    }
+
+    var uncaughtError;
+    window.onerror = function (message, url, lineNumber, columnNumber, error) { uncaughtError = error; return true; }
+    customElements.define('instantiates-itself-before-super', InstantiatesItselfBeforeSuper);
+    assert_equals(uncaughtError.name, 'TypeError');
+}, 'HTMLElement constructor must throw an TypeError when the top of the construction stack is marked AlreadyConstructed'
+    + ' due to a custom element constructor constructing itself before super() call');
+
+test(function () {
+    class MyOtherElement extends HTMLElement {
+        constructor() {
+            super();
+            if (this == instance)
+                return otherInstance;
+        }
+    }
+    var instance = document.getElementById('instance');
+    var otherInstance = document.getElementById('otherInstance');
+
+    assert_false(instance instanceof MyOtherElement);
+    assert_false(otherInstance instanceof MyOtherElement);
+
+    var uncaughtError;
+    window.onerror = function (message, url, lineNumber, columnNumber, error) { uncaughtError = error; return true; }
+    customElements.define('my-other-element', MyOtherElement);
+    assert_equals(uncaughtError.name, 'TypeError');
+
+    assert_true(document.createElement('my-other-element') instanceof MyOtherElement,
+        'Upgrading of custom elements must happen after the definition was added to the registry.');
+
+}, 'Upgrading a custom element must throw an TypeError when the returned element is not SameValue as the upgraded element');
+
+test(() => {
+  class NotAnElement extends HTMLElement {
+    constructor() {
+      return new Text();
+    }
+  }
+
+  let uncaughtError;
+  window.onerror = function (message, url, lineNumber, columnNumber, error) { uncaughtError = error; return true; }
+  customElements.define("not-an-element", NotAnElement);
+  assert_equals(uncaughtError.name, "TypeError");
+}, "Upgrading a custom element whose constructor returns a Text node must throw");
+
+test(() => {
+  class NotAnHTMLElement extends HTMLElement {
+    constructor() {
+      return document.createElementNS("", "test");
+    }
+  }
+
+  let uncaughtError;
+  window.onerror = function (message, url, lineNumber, columnNumber, error) { uncaughtError = error; return true; }
+  customElements.define("not-an-html-element", NotAnHTMLElement);
+  assert_equals(uncaughtError.name, "TypeError");
+}, "Upgrading a custom element whose constructor returns an Element must throw");
+
+</script>
+</body>
+</html>
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 19:33:14 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 19:33:14 +0000
commit	36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree	105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/tests/custom-elements/upgrading
parent	Initial commit. (diff)
download	firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip