| <!DOCTYPE html> |
| <link rel="help" href="https://drafts.csswg.org/css-values-5/#random"> |
| <link rel="author" title="sam@webkit.org"> |
| <meta name="timeout" content="long"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../support/computed-testcommon.js"></script> |
| <div id="container"> |
| <div id="target"></div> |
| </div> |
| <style> |
| @property --x { |
| syntax: "<number>"; |
| inherits: true; |
| initial-value: 3; |
| } |
| @property --y { |
| syntax: "<number>"; |
| inherits: true; |
| initial-value: 3; |
| } |
| @property --random-length-1 { |
| syntax: "<length>"; |
| inherits: true; |
| initial-value: 3px; |
| } |
| @property --random-length-2 { |
| syntax: "<length>"; |
| inherits: true; |
| initial-value: 3px; |
| } |
| @property --random-in-initial { |
| syntax: "<number>"; |
| inherits: false; |
| initial-value: random(1, 30); |
| } |
| #container { |
| font-size: 30px; |
| } |
| .randomNoIdentifier { |
| width: random(0px, 100px); |
| height: random(0px, 100px); |
| left: random(0px, 100000px); |
| right: random(0px, 100000px); |
| margin: random(0px, 100000px) random(0px, 100000px); |
| --x: random(0, 100); |
| --y: random(0, 100); |
| --random-length-1: random(fixed random(0, 1), 10px, 100px); |
| --random-length-2: random(fixed random(0, 1), 10px, 100px); |
| } |
| .randomMatchElement { |
| width: random(element-shared, 0px, 100px); |
| height: random(element-shared, 0px, 100px); |
| left: random(element-shared, 0px, 100000px); |
| right: random(element-shared, 0px, 100000px); |
| margin: random(element-shared 0px, 100000px) random(element-shared 0px, 100000px); |
| translate: random(element-shared, 10%, 30%); |
| scale: random(element-shared, 1, 3) random(element-shared, 3, 9); |
| } |
| .randomIdentifier { |
| width: random(--identifier, 0px, 100px); |
| height: random(--identifier, 0px, 100px); |
| left: random(--identifier, 0px, 100000px); |
| right: random(--identifier, 0px, 100000px); |
| margin: random(--identifier 0px, 100000px) random(--identifier 0px, 100000px); |
| } |
| .randomMatchElementAndIdentifier { |
| width: random(element-shared --other-identifier, 0px, 100px); |
| height: random(element-shared --other-identifier, 0px, 100px); |
| left: random(element-shared --other-identifier, 0px, 100000px); |
| right: random(element-shared --other-identifier, 0px, 100000px); |
| margin: random(element-shared --other-identifier 0px, 100000px) random(element-shared --other-identifier 0px, 100000px); |
| } |
| .randomFixed { |
| width: random(fixed 0.5, 10px, 100px); |
| height: random(fixed 0.5, 10px, 100px); |
| left: random(fixed 0.5, 0px, 100000px); |
| right: random(fixed 0.5, 0px, 100000px); |
| margin: random(fixed 0.5 0px, 100000px) random(fixed 0.5 0px, 100000px); |
| } |
| </style> |
| <script> |
| |
| // Run each test a number of times to increase the likelyhood that failure is not the cause of random chance. |
| const iterations = 5; |
| |
| // Since actual and expected values are generated randomly, `assert_equals()` |
| // does not generate deterministic test failure output. Chrome relies on test |
| // failure output to be deterministic and stable for failing test expectations. |
| function test_random_equals(actual, expected, message = "Random values should be equal") { |
| assert_equals(actual, expected, message); |
| } |
| |
| function test_random_computed_value(property, specified, computed, titleExtra, options = {}) { |
| if (!computed) |
| computed = specified; |
| |
| test(() => { |
| for (i = 0; i < iterations; ++i) { |
| const target = document.getElementById('target'); |
| assert_true(property in getComputedStyle(target), property + " doesn't seem to be supported in the computed style"); |
| assert_true(CSS.supports(property, specified), "'" + specified + "' is a supported value for " + property + "."); |
| target.style[property] = ''; |
| target.style[property] = specified; |
| |
| let readValue = getComputedStyle(target)[property]; |
| if (options.comparisonFunction) { |
| options.comparisonFunction(readValue, computed); |
| } else if (Array.isArray(computed)) { |
| assert_in_array(readValue, computed); |
| } else { |
| test_random_equals(readValue, computed); |
| } |
| if (readValue !== specified) { |
| target.style[property] = ''; |
| target.style[property] = readValue; |
| test_random_equals(getComputedStyle(target)[property], readValue, |
| 'computed value should round-trip'); |
| } |
| } |
| }, `Property ${property} value '${specified}'${titleExtra ? ' ' + titleExtra : ''}`); |
| } |
| |
| function test_random_computed_value_greater_or_lower_than(property, specified, expected, titleExtra) { |
| test(() => { |
| for (i = 0; i < iterations; ++i) { |
| const target = document.getElementById('target'); |
| assert_true(property in getComputedStyle(target), property + " doesn't seem to be supported in the computed style"); |
| assert_true(CSS.supports(property, specified), "'" + specified + "' is a supported value for " + property + "."); |
| target.style[property] = ''; |
| target.style[property] = specified; |
| let readValue = parseFloat(getComputedStyle(target)[property]); |
| assert_true(isFinite(readValue), specified + " expected finite value but got " + readValue) |
| assert_false(isNaN(readValue), specified + " expected finite value but got " + readValue) |
| if (expected > 0) |
| assert_greater_than_equal(readValue, expected, specified); |
| else |
| assert_less_than_equal(readValue, expected, specified); |
| } |
| }, `Property ${property} value '${specified}'${titleExtra ? ' ' + titleExtra : ''}`); |
| } |
| |
| function test_random_computed_value_in_range(property, specified, computedMin, computedMax, titleExtra) { |
| test(() => { |
| for (i = 0; i < iterations; ++i) { |
| const target = document.getElementById('target'); |
| assert_true(property in getComputedStyle(target), property + " doesn't seem to be supported in the computed style"); |
| assert_true(CSS.supports(property, specified), "'" + specified + "' is a supported value for " + property + "."); |
| target.style[property] = ''; |
| target.style[property] = specified; |
| |
| let readValue = getComputedStyle(target)[property]; |
| |
| let readValueNumber = parseFloat(readValue); |
| let computedMinNumber = parseFloat(computedMin); |
| let computedMaxNumber = parseFloat(computedMax); |
| |
| assert_greater_than_equal(readValueNumber, computedMinNumber, specified); |
| assert_less_than_equal(readValueNumber, computedMaxNumber, specified); |
| } |
| }, `Property ${property} value '${specified}'${titleExtra ? ' ' + titleExtra : ''}`); |
| } |
| |
| function test_pseudo_element_random_computed_value_in_range(property, pseudo_element, specified, computedMin, computedMax, titleExtra) { |
| test(() => { |
| for (i = 0; i < iterations; ++i) { |
| const styleEl = document.head.appendChild(document.createElement("style")); |
| styleEl.innerHTML = `#target${pseudo_element} \{ ${property}: ${specified}; \}`; |
| |
| try { |
| const target = document.getElementById("target"); |
| let readValue = getComputedStyle(target, pseudo_element)[property]; |
| |
| let readValueNumber = parseFloat(readValue); |
| let computedMinNumber = parseFloat(computedMin); |
| let computedMaxNumber = parseFloat(computedMax); |
| |
| assert_greater_than_equal(readValueNumber, computedMinNumber, specified); |
| assert_less_than_equal(readValueNumber, computedMaxNumber, specified); |
| } finally { |
| document.head.removeChild(styleEl); |
| } |
| } |
| }, `Property ${property} value on pseudo element '${pseudo_element}' '${specified}'${titleExtra ? ' ' + titleExtra : ''}`); |
| } |
| |
| function test_random_computed_value_has_fixed(property, specified, minPercentage, maxPercentage, expectedFixedValue = undefined, titleExtra = undefined) { |
| test(() => { |
| for (i = 0; i < iterations; ++i) { |
| const target = document.getElementById('target'); |
| assert_true(property in getComputedStyle(target), property + " doesn't seem to be supported in the computed style"); |
| assert_true(CSS.supports(property, specified), "'" + specified + "' is a supported value for " + property + "."); |
| target.style[property] = ''; |
| target.style[property] = specified; |
| |
| let readValue = getComputedStyle(target)[property]; |
| |
| // strip 'random(' and ')'. |
| let stippedReadValue = readValue.replace('random(', '').replace(')', ''); |
| |
| // split into the three main components |
| let [fixedComponent, minComponent, maxComponent] = stippedReadValue.split(', '); |
| |
| // split fixed component into its two components |
| let [fixedString, fixedValue] = fixedComponent.split(' '); |
| |
| test_random_equals(fixedString, 'fixed', `Computed value for ${specified} should include 'fixed'`); |
| if (expectedFixedValue) { |
| test_random_equals(parseFloat(fixedValue), expectedFixedValue, `Random value for ${specified} should be ${expectedFixedValue}`); |
| } else { |
| assert_greater_than_equal(parseFloat(fixedValue), 0, specified); |
| assert_less_than(parseFloat(fixedValue), 1, specified); |
| } |
| test_random_equals(minComponent, minPercentage, specified); |
| test_random_equals(maxComponent, maxPercentage, specified); |
| } |
| }, `Property ${property} value '${specified}'${titleExtra ? ' ' + titleExtra : ''}`); |
| } |
| |
| function test_random_base_is_not_1(property, specified) { |
| test(() => { |
| for (i = 0; i < iterations; ++i) { |
| const target = document.getElementById('target'); |
| assert_true(property in getComputedStyle(target), property + " doesn't seem to be supported in the computed style"); |
| assert_true(CSS.supports(property, specified), "'" + specified + "' is a supported value for " + property + "."); |
| target.style[property] = ''; |
| target.style[property] = specified; |
| const computed = target.computedStyleMap().get(property); |
| assert_true(computed instanceof CSSUnitValue); |
| assert_false(computed.value == 100.0, "Random base value should not be clamped to 1"); |
| } |
| }, `Property ${property} value '${specified}'`); |
| } |
| |
| function test_random_shared_by_property(property, random_value, random_element_shared_value) { |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| var randomValuesSameOnDifferentElements = true; |
| try { |
| for (let i = 0; i < iterations; ++i) { |
| const t1 = document.createElement('div'); |
| holder.appendChild(t1); |
| const t2 = document.createElement('div'); |
| holder.appendChild(t2); |
| |
| t1.style[property] = random_value; |
| t2.style[property] = random_value; |
| let t1Computed = getComputedStyle(t1)[property]; |
| let t2Computed = getComputedStyle(t2)[property]; |
| if (t1Computed != t2Computed) { |
| randomValuesSameOnDifferentElements = false; |
| } |
| |
| t1.style[property] = random_element_shared_value; |
| t2.style[property] = random_element_shared_value; |
| let t1ComputedElementShared = getComputedStyle(t1)[property]; |
| let t2ComputedElementShared = getComputedStyle(t2)[property]; |
| test_random_equals(t1ComputedElementShared, t2ComputedElementShared, |
| `${random_element_shared_value} values on different elements should be equal`); |
| } |
| assert_false(randomValuesSameOnDifferentElements, |
| `${random_value} values on different elements should not be equal`); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared by property '${property}' with values '${random_value}', '${random_element_shared_value}'`); |
| } |
| |
| const property = 'scale'; |
| |
| test_random_computed_value_in_range(property, 'random(1, 11)', '1', '11'); |
| test_random_computed_value_in_range(property, 'random(--foo, 2, 12)', '2', '12'); |
| test_random_computed_value_in_range(property, 'random(--foo element-shared, 3, 13)', '3', '13'); |
| test_random_computed_value_in_range(property, 'random(element-shared --foo, 4, 14)', '4', '14'); |
| |
| test_random_computed_value(property, 'random(0, 10, 5)', ['0', '5', '10']); |
| test_random_computed_value(property, 'random(--foo, 10, 20, 5)', ['10', '15', '20']); |
| test_random_computed_value(property, 'random(--foo element-shared, 20, 30, 5)', ['20', '25', '30']); |
| test_random_computed_value(property, 'random(element-shared --foo, 30, 40, 5)', ['30', '35', '40']); |
| |
| // Test out of order. |
| test_random_computed_value(property, 'random(100, 10)', '100'); |
| test_random_computed_value(property, 'random(-10, -100)', '-10'); |
| |
| // Test negative range values |
| test_random_computed_value_in_range(property, 'random(-100, -10)', '-100', '-10'); |
| |
| // Test negative step values (treated as if step is not there) |
| test_random_computed_value_in_range(property, 'random(40, 50, -5)', '40', '50'); |
| |
| // Test nested expressions |
| test_random_computed_value_in_range(property, 'random(5 * 1, 30 / 2)', '5', '15'); |
| |
| // Test nested in expressions |
| test_random_computed_value_in_range(property, 'calc(2 * random(6, 16))', '12', '32'); |
| |
| // Test NaN |
| test_random_computed_value(property, 'random(NaN, 100)', '0'); |
| test_random_computed_value(property, 'random(10, NaN)', '0'); |
| test_random_computed_value(property, 'random(NaN, NaN)', '0'); |
| test_random_computed_value(property, 'random(NaN, 100, 10)', '0'); |
| test_random_computed_value(property, 'random(10, NaN, 10)', '0'); |
| test_random_computed_value(property, 'random(NaN, NaN, 10)', '0'); |
| test_random_computed_value(property, 'random(NaN, 100, NaN)', '0'); |
| test_random_computed_value(property, 'random(10, NaN, NaN)', '0'); |
| test_random_computed_value(property, 'random(NaN, NaN, NaN)', '0'); |
| test_random_computed_value(property, 'random(10, 100, NaN)', '0'); |
| test_random_computed_value(property, 'calc(10 + random(NaN, 100))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(10, NaN))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(NaN, NaN))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(NaN, 100, 10))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(10, NaN, 10))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(NaN, NaN, 10))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(NaN, 100, NaN))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(10, NaN, NaN))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(NaN, NaN, NaN))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(10, 100, NaN))', '0'); |
| |
| // Test infinity |
| |
| const REALLY_LARGE = 1e6; |
| const REALLY_LARGE_NEGATIVE = -REALLY_LARGE; |
| |
| test_random_computed_value_greater_or_lower_than(property, 'random(infinity, 100)', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'random(infinity, infinity)', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'random(infinity, 100, 10)', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'random(infinity, infinity, 10)', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'random(infinity, 100, infinity)', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'random(infinity, infinity, infinity)', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'calc(10 + random(infinity, 100))', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'calc(10 + random(infinity, infinity))', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'calc(10 + random(infinity, infinity, 10))', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'calc(10 + random(infinity, 100, infinity))', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'calc(10 + random(infinity, infinity, infinity))', REALLY_LARGE); |
| test_random_computed_value_greater_or_lower_than(property, 'calc(10 + random(infinity, 100, 10))', REALLY_LARGE); |
| test_random_computed_value(property, 'random(10, infinity)', '0'); |
| test_random_computed_value(property, 'random(10, infinity, 10)', '0'); |
| test_random_computed_value(property, 'random(10, infinity, infinity)', '0'); |
| test_random_computed_value(property, 'calc(10 + random(10, infinity))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(10, infinity, 10))', '0'); |
| test_random_computed_value(property, 'calc(10 + random(10, infinity, infinity))', '0'); |
| test_random_computed_value(property, 'random(10, 100, infinity)', '10'); |
| test_random_computed_value(property, 'calc(10 + random(10, 100, infinity))', '20'); |
| // Negative steps, even infinitely negative steps, are ignored. |
| test_random_computed_value_in_range(property, 'random(10, 100, -infinity)', '10', '100'); |
| test_random_computed_value_in_range(property, 'calc(10 + random(10, 100, -infinity))', '20', '110'); |
| |
| // Test pseudo on psuedo elements |
| test_pseudo_element_random_computed_value_in_range(property, '::before', 'random(7, 17)', '7', '17'); |
| test_pseudo_element_random_computed_value_in_range(property, '::before', 'random(--bar, 8, 18)', '8', '18'); |
| test_pseudo_element_random_computed_value_in_range(property, '::before', 'random(element-shared, 9, 19)', '9', '19'); |
| test_pseudo_element_random_computed_value_in_range(property, '::before', 'random(element-shared --foo, 10, 20)', '10', '20'); |
| |
| // Test unresolvable percentage values |
| test_random_computed_value_has_fixed('translate', 'random(10%, 100%)', '10%', '100%'); |
| test_random_computed_value_has_fixed('translate', 'random(3 * 10% , 10 * 10%)', '30%', '100%'); |
| test_random_computed_value_has_fixed('translate', 'random(10%, 1%)', '10%', '1%'); |
| test_random_computed_value_has_fixed('translate', 'random(--identifier element-shared, 10%, 100%)', '10%', '100%'); |
| |
| // Test resolvable percentage values |
| test_random_computed_value('font-size', 'random(30%, 10%)', '9px'); |
| test_random_computed_value('font-size', 'random(10px * 10% / 1%, 0%)', '100px'); |
| |
| // Test out of range math functions for fixed value |
| test_random_base_is_not_1('width', 'random(fixed random(1, 2), 10px, 100px)'); |
| test_random_computed_value_has_fixed('translate', 'random(fixed random(-2, -1), 10%, 100%)', '10%', '100%', 0); |
| |
| // Random inside function |
| test_random_computed_value('color', 'rgb(random(30, 10) random(60, 10) random(90, 10))', 'rgb(30, 60, 90)'); |
| test_random_computed_value('color', 'rgb(from blue random(51, 10) random(g + 51, g) random(b, b))', 'color(srgb 0.2 0.2 1)'); |
| test_random_computed_value('color', 'color-mix(in srgb, rgb(random(30, 10) 0 0), rgb(random(21, 10) 0 0))', 'color(srgb 0.1 0 0)'); |
| test_random_computed_value('math-depth', 'add(random(30, 10))', '30'); |
| test_random_computed_value('view-transition-name', 'ident("myident" random(30, 10))', 'myident30'); |
| test_random_computed_value('background-image', 'image-set(url("http://example.com/image.png") calc(random(fixed 0.3, 0, 10) * 1x))', 'image-set(url("http://example.com/image.png") 3dppx)'); |
| test_random_computed_value('aspect-ratio', 'random(3, 1) / random(9, 6)', '3 / 9'); |
| test_random_computed_value('filter', 'drop-shadow(random(3px, 1px) random(6px, 1px) random(9px, 1px) black)', 'drop-shadow(rgb(0, 0, 0) 3px 6px 9px)'); |
| test_random_computed_value('font-variation-settings', '"wght" random(300, 100)', '"wght" 300'); |
| test_random_computed_value('font-feature-settings', '"liga" random(3, 1)', '"liga" 3'); |
| test_random_computed_value('font-style', 'oblique random(90deg, 10deg)', 'oblique 90deg'); |
| test_random_computed_value('font-palette', 'palette-mix(in lch, --blue calc(90% * random(1, 0)), --yellow 10%)', 'palette-mix(in lch, --blue 90%, --yellow)'); |
| test_random_computed_value('font-palette', 'palette-mix(in lch, --blue random(90%, 10%), --yellow 10%)', 'palette-mix(in lch, --blue 90%, --yellow)'); |
| test_random_computed_value('animation-timeline', 'view(random(10px, 10px) random(30px, 10px))', 'view(10px 30px)'); |
| test_random_computed_value('color', 'light-dark(rgb(random(30, 10) random(60, 10) random(90, 10)), rgb(random(30, 10) random(60, 10) random(90, 10)))', |
| 'rgb(30, 60, 90)'); |
| test_random_computed_value('rotate', |
| 'random(1, 0) random(1, 0) 1 90deg', |
| '1 1 1 90deg'); |
| test_random_computed_value('rotate', |
| 'x random(90deg, 30deg)', |
| 'x 90deg'); |
| test_random_computed_value('corner-shape', |
| 'superellipse(random(3, 1))', |
| 'superellipse(3)'); |
| test_random_computed_value('offset-path', |
| 'ray(random(30deg, 10deg))', |
| 'ray(30deg)'); |
| |
| test_random_shared_by_property('color', |
| 'color-mix(in srgb, rgb(from blue random(10, 30) random(g, g + 30) random(b, b)), rgb(random(10, 90) 0 0))', |
| 'color-mix(in srgb, rgb(from blue random(element-shared, 10, 30) random(element-shared, g, g + 30) random(element-shared, b, b)), rgb(random(element-shared, 10, 90) 0 0))'); |
| test_random_shared_by_property('math-depth', 'add(random(1, 100))', 'add(random(element-shared, 1, 100))'); |
| test_random_shared_by_property('view-transition-name', |
| 'ident("myident" random(1, 100))', |
| 'ident("myident" random(element-shared, 1, 100))'); |
| test_random_shared_by_property('aspect-ratio', 'random(1, 3, 1) / random(3, 9, 1)', 'random(element-shared, 1, 3, 1) / random(element-shared, 3, 9, 1)'); |
| test_random_shared_by_property('filter', 'drop-shadow(random(1px, 3px) random(1px, 6px) random(1px, 9px) black)', 'drop-shadow(random(element-shared, 1px, 3px) random(element-shared, 1px, 6px) random(element-shared, 1px, 9px) black)'); |
| test_random_shared_by_property('font-variation-settings', '"wght" random(100, 900)', '"wght" random(element-shared, 100, 900)'); |
| test_random_shared_by_property('font-style', 'oblique random(10deg, 90deg)', 'oblique random(element-shared, 10deg, 90deg)'); |
| test_random_shared_by_property('font-palette', 'palette-mix(in lch, --blue calc(90% * random(0, 1)), --yellow)', |
| 'palette-mix(in lch, --blue calc(90% * random(element-shared, 0, 1)), --yellow)'); |
| test_random_shared_by_property('font-palette', 'palette-mix(in lch, --blue random(10%, 90%, 10%), --yellow)', |
| 'palette-mix(in lch, --blue random(element-shared, 10%, 90%, 10%), --yellow)');; |
| test_random_shared_by_property('animation-timeline', 'view(random(10px, 30px) random(30px, 60px))', 'view(random(element-shared, 10px, 30px) random(element-shared, 30px, 60px))'); |
| test_random_shared_by_property('color', 'light-dark(rgb(random(10, 30) random(10, 60) random(10, 90)), rgb(random(30, 10) random(60, 10) random(90, 10)))', |
| `light-dark(rgb(random(element-shared, 10, 30) random(element-shared, 10, 60) random(element-shared, 10, 90)), |
| rgb(random(element-shared, 30, 10) random(element-shared, 60, 10) random(element-shared, 90, 10)))`); |
| |
| // Test random value sharing |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| const el = document.createElement('div'); |
| el.className = 'randomNoIdentifier'; |
| holder.appendChild(el); |
| const elComputedLeft = getComputedStyle(el)['left']; |
| |
| var allSame = true; |
| var allHaveSameLeftAndRight = true; |
| for (i = 0; i < iterations; ++i) { |
| const other = document.createElement('div'); |
| other.className = 'randomNoIdentifier'; |
| holder.appendChild(other); |
| const otherComputedLeft = getComputedStyle(other)['left']; |
| if (elComputedLeft != otherComputedLeft) { |
| allSame = false; |
| } |
| const otherComputedRight = getComputedStyle(other)['right']; |
| if (elComputedLeft != otherComputedRight) { |
| allHaveSameLeftAndRight = false; |
| } |
| } |
| |
| assert_false(allSame); |
| assert_false(allHaveSameLeftAndRight); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Maximum random: 'random(a, b)'`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| var allHaveSameMarginTopAndMarginLeft = true; |
| var allHaveSameMarginTopAndMarginBottom = true; |
| for (i = 0; i < iterations; ++i) { |
| const other = document.createElement('div'); |
| other.className = 'randomNoIdentifier'; |
| holder.appendChild(other); |
| const otherComputedMarginLeft = getComputedStyle(other)['margin-left']; |
| const otherComputedMarginTop = getComputedStyle(other)['margin-top']; |
| const otherComputedMarginBottom = getComputedStyle(other)['margin-bottom']; |
| if (otherComputedMarginLeft != otherComputedMarginTop) { |
| allHaveSameMarginTopAndMarginLeft = false; |
| } |
| if (otherComputedMarginBottom != otherComputedMarginTop) { |
| allHaveSameMarginTopAndMarginBottom = false; |
| } |
| } |
| |
| assert_false(allHaveSameMarginTopAndMarginLeft); |
| assert_true(allHaveSameMarginTopAndMarginBottom); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Maximum random - shorthand: random(a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| for (let i = 0; i < iterations; ++i) { |
| const other1 = document.createElement('div'); |
| other1.style.animationIterationCount = 'random(element-shared, 0, 100), random(element-shared, 0, 100)'; |
| holder.appendChild(other1); |
| let [computed11, computed12] = getComputedStyle(other1)['animation-iteration-count'].split(', '); |
| const other2 = document.createElement('div'); |
| other2.style.animationIterationCount = '300, random(element-shared, 0, 100)'; |
| holder.appendChild(other2); |
| let [computed21, computed22] = getComputedStyle(other2)['animation-iteration-count'].split(', '); |
| assert_false(computed11 == computed12, "Random values for same property name but different value indexes should differ"); |
| test_random_equals(computed11, computed22); |
| } |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared by property name and value index: random(element-shared, a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| const el = document.createElement('div'); |
| el.className = 'randomMatchElement'; |
| holder.appendChild(el); |
| const elScale = getComputedStyle(el)['scale']; |
| |
| var allHaveSameScaleXAndScaleY = true; |
| var allSame = true; |
| for (i = 0; i < iterations; ++i) { |
| const other = document.createElement('div'); |
| other.className = 'randomMatchElement'; |
| holder.appendChild(other); |
| const otherScale = getComputedStyle(other)['scale']; |
| if (elScale != otherScale) { |
| allSame = false; |
| } |
| let [scaleX, scaleY] = otherScale.split(' '); |
| if (scaleX != scaleY) { |
| allHaveSameScaleXAndScaleY = false; |
| } |
| } |
| |
| assert_false(allHaveSameScaleXAndScaleY); |
| assert_true(allSame); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Maximum random - list: random(a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| for (i = 0; i < iterations; ++i) { |
| const el = document.createElement('div'); |
| el.className = 'randomNoIdentifier'; |
| holder.appendChild(el); |
| const elComputedLength1 = getComputedStyle(el).getPropertyValue('--random-length-1'); |
| const elComputedLength2 = getComputedStyle(el).getPropertyValue('--random-length-2'); |
| assert_false(elComputedLength1 == elComputedLength2, |
| "Different custom properties on the same element should not have equal values"); |
| } |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Nested random inside custom property: 'random(a, b)'`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| for (i = 0; i < iterations; ++i) { |
| const el = document.createElement('div'); |
| el.className = 'randomNoIdentifier'; |
| holder.appendChild(el); |
| const elComputedX = getComputedStyle(el).getPropertyValue('--x'); |
| const elComputedY = getComputedStyle(el).getPropertyValue('--y'); |
| assert_false(elComputedX == elComputedY, |
| "Different custom properties on the same element should not have equal values"); |
| } |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Maximum random custom property: 'random(a, b)'`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| for (i = 0; i < iterations; ++i) { |
| const el = document.createElement('div'); |
| el.className = 'randomIdentifier'; |
| holder.appendChild(el); |
| |
| let elComputedWidth = getComputedStyle(el)['width']; |
| let elComputedHeight = getComputedStyle(el)['height']; |
| |
| test_random_equals(elComputedWidth, elComputedHeight, |
| "width and height values on same element should be equal"); |
| } |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared by name within an element: 'random(--identifier, a, b)'`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| var allHaveSameMarginTopAndMarginLeft = true; |
| for (i = 0; i < iterations; ++i) { |
| const other = document.createElement('div'); |
| other.className = 'randomIdentifier'; |
| holder.appendChild(other); |
| const otherComputedMarginLeft = getComputedStyle(other)['margin-left']; |
| const otherComputedMarginTop = getComputedStyle(other)['margin-top']; |
| if (otherComputedMarginLeft != otherComputedMarginTop) { |
| allHaveSameMarginTopAndMarginLeft = false; |
| } |
| } |
| |
| assert_true(allHaveSameMarginTopAndMarginLeft); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared by name within an element - shorthand: random(--identifier, a, b))`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| for (i = 0; i < iterations; ++i) { |
| const t1 = document.createElement('div'); |
| t1.className = 'randomMatchElement'; |
| holder.appendChild(t1); |
| const t2 = document.createElement('div'); |
| t2.className = 'randomMatchElement'; |
| holder.appendChild(t2); |
| |
| let t1ComputedWidth = getComputedStyle(t1)['width']; |
| let t2ComputedWidth = getComputedStyle(t2)['width']; |
| |
| test_random_equals(t1ComputedWidth, t2ComputedWidth, |
| "width values on different elements should be equal"); |
| } |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared between elements within a property: random(element-shared, a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| var allSame = true; |
| try { |
| for (let i = 0; i < iterations; ++i) { |
| const t1 = document.createElement('div'); |
| t1.style['color'] = 'color-mix(in srgb, rgb(0 random(0, 255) 0) 50%, rgb(random(0, 255) 0 0) 50%)'; |
| holder.appendChild(t1); |
| |
| let t1ComputedColor = getComputedStyle(t1)['color']; |
| let [r, g, b] = t1ComputedColor.replace('color(srgb ', '').split(' '); |
| if (r != g) { |
| allSame = false; |
| } |
| } |
| assert_false(allSame, |
| "random() values on different positions should not be equal"); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared between elements within a property, random inside color functions: random(element-shared, a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| for (i = 0; i < iterations; ++i) { |
| const t1 = document.createElement('div'); |
| t1.className = 'randomMatchElement'; |
| holder.appendChild(t1); |
| const t2 = document.createElement('div'); |
| t2.className = 'randomMatchElement'; |
| holder.appendChild(t2); |
| |
| let t1ComputedWidth = getComputedStyle(t1)['translate']; |
| let t2ComputedWidth = getComputedStyle(t2)['translate']; |
| |
| test_random_equals(t1ComputedWidth, t2ComputedWidth, |
| "translate values with percentages on different elements should be equal"); |
| } |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared between elements within a property, percentage values: random(element-shared, a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| var allHaveSameMarginTopAndMarginLeft = true; |
| for (i = 0; i < iterations; ++i) { |
| const other = document.createElement('div'); |
| other.className = 'randomMatchElement'; |
| holder.appendChild(other); |
| const otherComputedMarginLeft = getComputedStyle(other)['margin-left']; |
| const otherComputedMarginTop = getComputedStyle(other)['margin-top']; |
| if (otherComputedMarginLeft != otherComputedMarginTop) { |
| allHaveSameMarginTopAndMarginLeft = false; |
| } |
| } |
| |
| assert_true(allHaveSameMarginTopAndMarginLeft); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared between elements within a property - shorthand: random(element-shared, a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| for (i = 0; i < iterations; ++i) { |
| const t1 = document.createElement('div'); |
| t1.className = 'randomMatchElementAndIdentifier'; |
| holder.appendChild(t1); |
| const t2 = document.createElement('div'); |
| t2.className = 'randomMatchElementAndIdentifier'; |
| holder.appendChild(t2); |
| |
| let t1ComputedWidth = getComputedStyle(t1)['width']; |
| let t2ComputedHeight = getComputedStyle(t2)['height']; |
| |
| test_random_equals(t1ComputedWidth, t2ComputedHeight, |
| "width and height values on different elements should be equal"); |
| } |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared globally: random(--identifier element-shared, a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| var allHaveSameMarginTopAndMarginLeft = true; |
| for (i = 0; i < iterations; ++i) { |
| const other = document.createElement('div'); |
| other.className = 'randomMatchElementAndIdentifier'; |
| holder.appendChild(other); |
| const otherComputedMarginLeft = getComputedStyle(other)['margin-left']; |
| const otherComputedMarginTop = getComputedStyle(other)['margin-top']; |
| if (otherComputedMarginLeft != otherComputedMarginTop) { |
| allHaveSameMarginTopAndMarginLeft = false; |
| } |
| } |
| |
| assert_true(allHaveSameMarginTopAndMarginLeft); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared globally - shorthand: random(element-shared, a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| var allHaveSameMarginTopAndMargin = true; |
| for (i = 0; i < iterations; ++i) { |
| const el1 = document.createElement('div'); |
| el1.style['margin'] = 'random(element-shared, 10px, 30px)'; |
| holder.appendChild(el1); |
| const el2 = document.createElement('div'); |
| el2.style['margin-top'] = 'random(element-shared, 10px, 30px)'; |
| holder.appendChild(el2); |
| |
| const el1ComputedMargin = getComputedStyle(el1)['margin']; |
| const el2ComputedMarginTop = getComputedStyle(el2)['margin-top']; |
| if (el1ComputedMargin != el2ComputedMarginTop) { |
| allHaveSameMarginTopAndMargin = false; |
| } |
| } |
| |
| assert_false(allHaveSameMarginTopAndMargin, |
| "random() should not be shared between longhand and shorthand"); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Shared by property - shorthand and longhand: random(element-shared, a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| for (i = 0; i < iterations; ++i) { |
| const t1 = document.createElement('div'); |
| t1.className = 'randomFixed'; |
| holder.appendChild(t1); |
| |
| let t1ComputedWidth = getComputedStyle(t1)['width']; |
| |
| test_random_equals(t1ComputedWidth, "55px", "Random value with fixed should be 55px"); |
| } |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Fixed: random(fixed <number>, a, b)`); |
| |
| // Test random value sharing |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| const el = document.createElement('div'); |
| el.className = 'randomIdentifier'; |
| holder.appendChild(el); |
| const elComputedHeight = getComputedStyle(el)['height']; |
| |
| var allSame = true; |
| for (i = 0; i < iterations; ++i) { |
| const other = document.createElement('div'); |
| other.className = 'randomIdentifier'; |
| holder.appendChild(other); |
| const otherComputedHeight = getComputedStyle(other)['height']; |
| if (elComputedHeight != otherComputedHeight) { |
| allSame = false; |
| } |
| } |
| assert_false(allSame); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `Different between elements with same identifier random(--identifier, a, b)`); |
| |
| test(() => { |
| const holder = document.createElement('div'); |
| document.body.appendChild(holder); |
| |
| try { |
| const el = document.createElement('div'); |
| el.className = 'randomNoIdentifier'; |
| holder.appendChild(el); |
| const computedValue = getComputedStyle(el)['--random-in-initial']; |
| test_random_equals(computedValue, undefined); |
| } finally { |
| document.body.removeChild(holder); |
| } |
| }, `random() values should not be allowed as initial values in @property`); |
| |
| </script> |
