custom-elements/enqueue-custom-element-callback-reactions-inside-another-callback.html - external/w3c/web-platform-tests - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
 <title>Custom Elements: must enqueue an element on the appropriate element queue after checking callback is null and the attribute name</title>
 <meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
 <meta name="assert" content="To enqueue a custom element callback reaction, the callback must be checked of being null and whether the attribute name is observed or not">
 <link rel="help" content="https://html.spec.whatwg.org/multipage/custom-elements.html#enqueue-a-custom-element-callback-reaction">
 <link rel="help" content="https://github.com/w3c/webcomponents/issues/760">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="resources/custom-elements-helpers.js"></script>
 </head>
 <body>
 <script>

 test_with_window((contentWindow, contentDocument) => {
  class ParentElement extends contentWindow.HTMLElement {
  connectedCallback()
  {
  logs.push('begin');
  const child = this.firstChild;
  child.remove();
  logs.push('end');
  }
  }
  contentWindow.customElements.define('parent-element', ParentElement);

  const logs = [];
  class ChildElement extends contentWindow.HTMLElement {
  connectedCallback() { logs.push('connected'); }
  disconnectedCallback() { logs.push('disconnected'); }
  }
  contentWindow.customElements.define('child-element', ChildElement);

  const parent = new ParentElement;
  const child = new ChildElement;
  parent.appendChild(child);

  contentDocument.body.appendChild(parent);
  assert_array_equals(logs, ['begin', 'connected', 'disconnected', 'end']);
 }, 'Disconnecting an element with disconnectedCallback while it has a connectedCallback in its custom element reaction queue must result in connectedCallback getting invoked before the removal completes');

 test_with_window((contentWindow, contentDocument) => {
  class ParentElement extends contentWindow.HTMLElement {
  connectedCallback()
  {
  logs.push('begin');
  const child = this.firstChild;
  child.remove();
  logs.push('end');
  }
  }
  contentWindow.customElements.define('parent-element', ParentElement);

  const logs = [];
  class ChildElement extends contentWindow.HTMLElement {
  connectedCallback() { logs.push('connected'); }
  }
  contentWindow.customElements.define('child-element', ChildElement);

  const parent = new ParentElement;
  const child = new ChildElement;
  parent.appendChild(child);

  contentDocument.body.appendChild(parent);
  assert_array_equals(logs, ['begin', 'end', 'connected']);
 }, 'Disconnecting an element without disconnectedCallback while it has a connectedCallback in its custom element reaction queue must not result in connectedCallback getting invoked before the removal completes');

 test_with_window((contentWindow, contentDocument) => {
  class ParentElement extends contentWindow.HTMLElement {
  disconnectedCallback()
  {
  logs.push('begin');
  contentDocument.body.appendChild(this.firstChild);
  logs.push('end');
  }
  }
  contentWindow.customElements.define('parent-element', ParentElement);

  const logs = [];
  class ChildElement extends contentWindow.HTMLElement {
  connectedCallback() { logs.push('connected'); }
  disconnectedCallback() { logs.push('disconnected'); }
  }
  contentWindow.customElements.define('child-element', ChildElement);

  const parent = new ParentElement;
  const child = new ChildElement;
  parent.appendChild(child);
  contentDocument.body.appendChild(parent);
  parent.remove();
  assert_array_equals(logs, ['connected', 'begin', 'disconnected', 'connected', 'end']);
 }, 'Connecting a element with connectedCallback while it has a disconnectedCallback in its custom element reaction queue must result in disconnectedCallback getting invoked before the insertion completes');

 test_with_window((contentWindow, contentDocument) => {
  class ParentElement extends contentWindow.HTMLElement {
  disconnectedCallback()
  {
  logs.push('begin');
  contentDocument.body.appendChild(this.firstChild);
  logs.push('end');
  }
  }
  contentWindow.customElements.define('parent-element', ParentElement);

  const logs = [];
  class ChildElement extends contentWindow.HTMLElement {
  disconnectedCallback() { logs.push('disconnected'); }
  }
  contentWindow.customElements.define('child-element', ChildElement);

  const parent = new ParentElement;
  const child = new ChildElement;
  parent.appendChild(child);
  contentDocument.body.appendChild(parent);
  parent.remove();
  assert_array_equals(logs, ['begin', 'end', 'disconnected']);
 }, 'Connecting an element without connectedCallback while it has a disconnectedCallback in its custom element reaction queue must not result in disconnectedCallback getting invoked before the insertion completes');

 test_with_window((contentWindow, contentDocument) => {
  class ParentElement extends contentWindow.HTMLElement {
  connectedCallback()
  {
  logs.push('begin');
  document.adoptNode(this.firstChild);
  logs.push('end');
  }
  }
  contentWindow.customElements.define('parent-element', ParentElement);

  const logs = [];
  class ChildElement extends contentWindow.HTMLElement {
  adoptedCallback() { logs.push('adopted'); }
  connectedCallback() { logs.push('connected'); }
  }
  contentWindow.customElements.define('child-element', ChildElement);

  const parent = new ParentElement;
  const child = new ChildElement;
  parent.appendChild(child);
  contentDocument.body.appendChild(parent);
  assert_array_equals(logs, ['begin', 'connected', 'adopted', 'end']);
 }, 'Adopting an element with adoptingCallback while it has a connectedCallback in its custom element reaction queue must result in connectedCallback getting invoked before the adoption completes');

 test_with_window((contentWindow, contentDocument) => {
  class ParentElement extends contentWindow.HTMLElement {
  connectedCallback()
  {
  logs.push('begin');
  document.adoptNode(this.firstChild);
  logs.push('end');
  }
  }
  contentWindow.customElements.define('parent-element', ParentElement);

  const logs = [];
  class ChildElement extends contentWindow.HTMLElement {
  connectedCallback() { logs.push('connected'); }
  }
  contentWindow.customElements.define('child-element', ChildElement);

  const parent = new ParentElement;
  const child = new ChildElement;
  parent.appendChild(child);
  contentDocument.body.appendChild(parent);
  assert_array_equals(logs, ['begin', 'end', 'connected']);
 }, 'Adopting an element without adoptingCallback while it has a connectedCallback in its custom element reaction queue must not result in connectedCallback getting invoked before the adoption completes');

 test_with_window((contentWindow, contentDocument) => {
  class ParentElement extends contentWindow.HTMLElement {
  connectedCallback()
  {
  logs.push('begin');
  this.firstChild.setAttribute('title', 'foo');
  logs.push('end');
  }
  }
  contentWindow.customElements.define('parent-element', ParentElement);

  const logs = [];
  class ChildElement extends contentWindow.HTMLElement {
  attributeChangedCallback() { logs.push('attributeChanged'); }
  connectedCallback() { logs.push('connected'); }
  static get observedAttributes() { return ['title']; }
  }
  contentWindow.customElements.define('child-element', ChildElement);

  const parent = new ParentElement;
  const child = new ChildElement;
  parent.appendChild(child);
  contentDocument.body.appendChild(parent);
  assert_array_equals(logs, ['begin', 'connected', 'attributeChanged', 'end']);
 }, 'Setting an observed attribute on an element with attributeChangedCallback while it has a connectedCallback in its custom element reaction queue must result in connectedCallback getting invoked before the attribute change completes');

 test_with_window((contentWindow, contentDocument) => {
  class ParentElement extends contentWindow.HTMLElement {
  connectedCallback()
  {
  logs.push('begin');
  this.firstChild.setAttribute('lang', 'en');
  logs.push('end');
  }
  }
  contentWindow.customElements.define('parent-element', ParentElement);

  const logs = [];
  class ChildElement extends contentWindow.HTMLElement {
  attributeChangedCallback() { logs.push('attributeChanged'); }
  connectedCallback() { logs.push('connected'); }
  static get observedAttributes() { return ['title']; }
  }
  contentWindow.customElements.define('child-element', ChildElement);

  const parent = new ParentElement;
  const child = new ChildElement;
  parent.appendChild(child);
  contentDocument.body.appendChild(parent);
  assert_array_equals(logs, ['begin', 'end', 'connected']);
 }, 'Setting an observed attribute on an element with attributeChangedCallback while it has a connectedCallback in its custom element reaction queue must not result in connectedCallback getting invoked before the attribute change completes');

 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Custom Elements: must enqueue an element on the appropriate element queue after checking callback is null and the attribute name</title>
	<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
	<meta name="assert" content="To enqueue a custom element callback reaction, the callback must be checked of being null and whether the attribute name is observed or not">
	<link rel="help" content="https://html.spec.whatwg.org/multipage/custom-elements.html#enqueue-a-custom-element-callback-reaction">
	<link rel="help" content="https://github.com/w3c/webcomponents/issues/760">
	<script src="/resources/testharness.js"></script>
	<script src="/resources/testharnessreport.js"></script>
	<script src="resources/custom-elements-helpers.js"></script>
	</head>
	<body>
	<script>

	test_with_window((contentWindow, contentDocument) => {
	class ParentElement extends contentWindow.HTMLElement {
	connectedCallback()
	{
	logs.push('begin');
	const child = this.firstChild;
	child.remove();
	logs.push('end');
	}
	}
	contentWindow.customElements.define('parent-element', ParentElement);

	const logs = [];
	class ChildElement extends contentWindow.HTMLElement {
	connectedCallback() { logs.push('connected'); }
	disconnectedCallback() { logs.push('disconnected'); }
	}
	contentWindow.customElements.define('child-element', ChildElement);

	const parent = new ParentElement;
	const child = new ChildElement;
	parent.appendChild(child);

	contentDocument.body.appendChild(parent);
	assert_array_equals(logs, ['begin', 'connected', 'disconnected', 'end']);
	}, 'Disconnecting an element with disconnectedCallback while it has a connectedCallback in its custom element reaction queue must result in connectedCallback getting invoked before the removal completes');

	test_with_window((contentWindow, contentDocument) => {
	class ParentElement extends contentWindow.HTMLElement {
	connectedCallback()
	{
	logs.push('begin');
	const child = this.firstChild;
	child.remove();
	logs.push('end');
	}
	}
	contentWindow.customElements.define('parent-element', ParentElement);

	const logs = [];
	class ChildElement extends contentWindow.HTMLElement {
	connectedCallback() { logs.push('connected'); }
	}
	contentWindow.customElements.define('child-element', ChildElement);

	const parent = new ParentElement;
	const child = new ChildElement;
	parent.appendChild(child);

	contentDocument.body.appendChild(parent);
	assert_array_equals(logs, ['begin', 'end', 'connected']);
	}, 'Disconnecting an element without disconnectedCallback while it has a connectedCallback in its custom element reaction queue must not result in connectedCallback getting invoked before the removal completes');

	test_with_window((contentWindow, contentDocument) => {
	class ParentElement extends contentWindow.HTMLElement {
	disconnectedCallback()
	{
	logs.push('begin');
	contentDocument.body.appendChild(this.firstChild);
	logs.push('end');
	}
	}
	contentWindow.customElements.define('parent-element', ParentElement);

	const logs = [];
	class ChildElement extends contentWindow.HTMLElement {
	connectedCallback() { logs.push('connected'); }
	disconnectedCallback() { logs.push('disconnected'); }
	}
	contentWindow.customElements.define('child-element', ChildElement);

	const parent = new ParentElement;
	const child = new ChildElement;
	parent.appendChild(child);
	contentDocument.body.appendChild(parent);
	parent.remove();
	assert_array_equals(logs, ['connected', 'begin', 'disconnected', 'connected', 'end']);
	}, 'Connecting a element with connectedCallback while it has a disconnectedCallback in its custom element reaction queue must result in disconnectedCallback getting invoked before the insertion completes');

	test_with_window((contentWindow, contentDocument) => {
	class ParentElement extends contentWindow.HTMLElement {
	disconnectedCallback()
	{
	logs.push('begin');
	contentDocument.body.appendChild(this.firstChild);
	logs.push('end');
	}
	}
	contentWindow.customElements.define('parent-element', ParentElement);

	const logs = [];
	class ChildElement extends contentWindow.HTMLElement {
	disconnectedCallback() { logs.push('disconnected'); }
	}
	contentWindow.customElements.define('child-element', ChildElement);

	const parent = new ParentElement;
	const child = new ChildElement;
	parent.appendChild(child);
	contentDocument.body.appendChild(parent);
	parent.remove();
	assert_array_equals(logs, ['begin', 'end', 'disconnected']);
	}, 'Connecting an element without connectedCallback while it has a disconnectedCallback in its custom element reaction queue must not result in disconnectedCallback getting invoked before the insertion completes');

	test_with_window((contentWindow, contentDocument) => {
	class ParentElement extends contentWindow.HTMLElement {
	connectedCallback()
	{
	logs.push('begin');
	document.adoptNode(this.firstChild);
	logs.push('end');
	}
	}
	contentWindow.customElements.define('parent-element', ParentElement);

	const logs = [];
	class ChildElement extends contentWindow.HTMLElement {
	adoptedCallback() { logs.push('adopted'); }
	connectedCallback() { logs.push('connected'); }
	}
	contentWindow.customElements.define('child-element', ChildElement);

	const parent = new ParentElement;
	const child = new ChildElement;
	parent.appendChild(child);
	contentDocument.body.appendChild(parent);
	assert_array_equals(logs, ['begin', 'connected', 'adopted', 'end']);
	}, 'Adopting an element with adoptingCallback while it has a connectedCallback in its custom element reaction queue must result in connectedCallback getting invoked before the adoption completes');

	test_with_window((contentWindow, contentDocument) => {
	class ParentElement extends contentWindow.HTMLElement {
	connectedCallback()
	{
	logs.push('begin');
	document.adoptNode(this.firstChild);
	logs.push('end');
	}
	}
	contentWindow.customElements.define('parent-element', ParentElement);

	const logs = [];
	class ChildElement extends contentWindow.HTMLElement {
	connectedCallback() { logs.push('connected'); }
	}
	contentWindow.customElements.define('child-element', ChildElement);

	const parent = new ParentElement;
	const child = new ChildElement;
	parent.appendChild(child);
	contentDocument.body.appendChild(parent);
	assert_array_equals(logs, ['begin', 'end', 'connected']);
	}, 'Adopting an element without adoptingCallback while it has a connectedCallback in its custom element reaction queue must not result in connectedCallback getting invoked before the adoption completes');

	test_with_window((contentWindow, contentDocument) => {
	class ParentElement extends contentWindow.HTMLElement {
	connectedCallback()
	{
	logs.push('begin');
	this.firstChild.setAttribute('title', 'foo');
	logs.push('end');
	}
	}
	contentWindow.customElements.define('parent-element', ParentElement);

	const logs = [];
	class ChildElement extends contentWindow.HTMLElement {
	attributeChangedCallback() { logs.push('attributeChanged'); }
	connectedCallback() { logs.push('connected'); }
	static get observedAttributes() { return ['title']; }
	}
	contentWindow.customElements.define('child-element', ChildElement);

	const parent = new ParentElement;
	const child = new ChildElement;
	parent.appendChild(child);
	contentDocument.body.appendChild(parent);
	assert_array_equals(logs, ['begin', 'connected', 'attributeChanged', 'end']);
	}, 'Setting an observed attribute on an element with attributeChangedCallback while it has a connectedCallback in its custom element reaction queue must result in connectedCallback getting invoked before the attribute change completes');

	test_with_window((contentWindow, contentDocument) => {
	class ParentElement extends contentWindow.HTMLElement {
	connectedCallback()
	{
	logs.push('begin');
	this.firstChild.setAttribute('lang', 'en');
	logs.push('end');
	}
	}
	contentWindow.customElements.define('parent-element', ParentElement);

	const logs = [];
	class ChildElement extends contentWindow.HTMLElement {
	attributeChangedCallback() { logs.push('attributeChanged'); }
	connectedCallback() { logs.push('connected'); }
	static get observedAttributes() { return ['title']; }
	}
	contentWindow.customElements.define('child-element', ChildElement);

	const parent = new ParentElement;
	const child = new ChildElement;
	parent.appendChild(child);
	contentDocument.body.appendChild(parent);
	assert_array_equals(logs, ['begin', 'end', 'connected']);
	}, 'Setting an observed attribute on an element with attributeChangedCallback while it has a connectedCallback in its custom element reaction queue must not result in connectedCallback getting invoked before the attribute change completes');

	</script>
	</body>
	</html>