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28 lines
1.1 KiB
JavaScript
28 lines
1.1 KiB
JavaScript
'use strict';
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/**
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* Create test that a CSS property computes to the expected value.
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* The document element #target is used to perform the test.
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*
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* @param {string} property The name of the CSS property being tested.
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* @param {string} specified A specified value for the property.
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* @param {string} computed The expected computed value. If omitted,
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defaults to specified.
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*/
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function test_computed_value(property, specified, computed) {
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if (!computed)
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computed = specified;
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test(() => {
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const target = document.getElementById('target');
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if (!getComputedStyle(target)[property])
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return;
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target.style[property] = '';
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target.style[property] = specified;
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assert_equals(getComputedStyle(target)[property], computed);
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if (computed !== specified) {
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target.style[property] = '';
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target.style[property] = computed;
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assert_equals(getComputedStyle(target)[property], computed, 'computed value should round-trip');
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}
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}, "Property " + property + " value '" + specified + "' computes to '" + computed + "'");
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}
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