DOMStringMap.html - mozsearch

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /custom-elements/reactions/DOMStringMap.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

<title>Custom Elements: CEReactions on DOMStringMap interface</title>

<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">

<meta name="assert" content="setter and deleter of DOMStringMap interface must have CEReactions">

<meta name="help" content="https://html.spec.whatwg.org/#domstringmap">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="../resources/custom-elements-helpers.js"></script>

<script src="./resources/reactions.js"></script>

</head>

<body>

<div id="log"></div>

<script>

test(function () {

    var element = define_new_custom_element(['data-foo']);

    var instance = document.createElement(element.name);

    assert_array_equals(element.takeLog().types(), ['constructed']);

    instance.dataset.foo = 'bar';

    var logEntries = element.takeLog();

    assert_array_equals(logEntries.types(), ['attributeChanged']);

    assert_attribute_log_entry(logEntries.last(), {name: 'data-foo', oldValue: null, newValue: 'bar', namespace: null});

}, 'setter on DOMStringMap must enqueue an attributeChanged reaction when adding an observed data attribute');

test(function () {

    var element = define_new_custom_element(['data-bar']);

    var instance = document.createElement(element.name);

    assert_array_equals(element.takeLog().types(), ['constructed']);

    instance.dataset.foo = 'bar';

    assert_array_equals(element.takeLog().types(), []);

}, 'setter on DOMStringMap must not enqueue an attributeChanged reaction when adding an unobserved data attribute');

test(function () {

    var element = define_new_custom_element(['data-foo']);

    var instance = document.createElement(element.name);

    instance.dataset.foo = 'bar';

    assert_array_equals(element.takeLog().types(), ['constructed', 'attributeChanged']);

    instance.dataset.foo = 'baz';

    var logEntries = element.takeLog();

    assert_array_equals(logEntries.types(), ['attributeChanged']);

    assert_attribute_log_entry(logEntries.last(), {name: 'data-foo', oldValue: 'bar', newValue: 'baz', namespace: null});

}, 'setter on DOMStringMap must enqueue an attributeChanged reaction when mutating the value of an observed data attribute');

test(function () {

    var element = define_new_custom_element(['data-foo']);

    var instance = document.createElement(element.name);

    instance.dataset.foo = 'bar';

    assert_array_equals(element.takeLog().types(), ['constructed', 'attributeChanged']);

    instance.dataset.foo = 'bar';

    var logEntries = element.takeLog();

    assert_array_equals(logEntries.types(), ['attributeChanged']);

    assert_attribute_log_entry(logEntries.last(), {name: 'data-foo', oldValue: 'bar', newValue: 'bar', namespace: null});

}, 'setter on DOMStringMap must enqueue an attributeChanged reaction when mutating the value of an observed data attribute to the same value');

test(function () {

    var element = define_new_custom_element(['data-zero']);

    var instance = document.createElement(element.name);

    instance.dataset.foo = 'bar';

    assert_array_equals(element.takeLog().types(), ['constructed']);

    instance.dataset.foo = 'baz';

    assert_array_equals(element.takeLog().types(), []);

}, 'setter on DOMStringMap must not enqueue an attributeChanged reaction when mutating the value of an unobserved data attribute');

test(function () {

    var element = define_new_custom_element(['data-foo']);

    var instance = document.createElement(element.name);

    instance.dataset.foo = 'bar';

    assert_array_equals(element.takeLog().types(), ['constructed', 'attributeChanged']);

    delete instance.dataset.foo;

    var logEntries = element.takeLog();

    assert_array_equals(logEntries.types(), ['attributeChanged']);

    assert_attribute_log_entry(logEntries.last(), {name: 'data-foo', oldValue: 'bar', newValue: null, namespace: null});

}, 'deleter on DOMStringMap must enqueue an attributeChanged reaction when removing an observed data attribute');

test(function () {

    var element = define_new_custom_element(['data-bar']);

    var instance = document.createElement(element.name);

    instance.dataset.foo = 'bar';

    assert_array_equals(element.takeLog().types(), ['constructed']);

    delete instance.dataset.foo;

    assert_array_equals(element.takeLog().types(), []);

}, 'deleter on DOMStringMap must not enqueue an attributeChanged reaction when removing an unobserved data attribute');

test(function () {

    var element = define_new_custom_element(['data-foo']);

    var instance = document.createElement(element.name);

    assert_array_equals(element.takeLog().types(), ['constructed']);

    delete instance.dataset.foo;

    assert_array_equals(element.takeLog().types(), []);

}, 'deleter on DOMStringMap must not enqueue an attributeChanged reaction when it does not remove a data attribute');

</script>

</body>

</html>