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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/css/css-properties-values-api/property-cascade.html | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-properties-values-api/property-cascade.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-properties-values-api/property-cascade.html | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-properties-values-api/property-cascade.html b/testing/web-platform/tests/css/css-properties-values-api/property-cascade.html new file mode 100644 index 0000000000..bb50213d5c --- /dev/null +++ b/testing/web-platform/tests/css/css-properties-values-api/property-cascade.html @@ -0,0 +1,63 @@ +<!DOCTYPE html> +<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api-1/#the-registerproperty-function" /> +<meta name="assert" content="Verifies that registering a property does not affect the cascade" /> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> + +<style> + +#outer { color: rgb(1, 1, 1); } +#inner { + --my-color: rgb(2, 2, 2); + --my-color: url(not-a-color); + color: var(--my-color); +} + +</style> + +<div id=outer> + <div id=inner></div> +</div> + +<script> + +test(function(){ + // Because var(--my-color) is invalid, our color declaration should behave + // like color:unset, i.e. it should compute to the inherited color. + assert_equals(inner.computedStyleMap().get('color').toString(), 'rgb(1, 1, 1)'); + + CSS.registerProperty({ + name: '--my-color', + syntax: '<color>', + initialValue: 'rgb(3, 3, 3)', + inherits: false + }); + + // After registering, var(--my-color) is still invalid. The important thing + // here is that the computed value of color is the initialValue of + // --my-color, and not rgb(2, 2, 2). + assert_equals(inner.computedStyleMap().get('color').toString(), 'rgb(3, 3, 3)'); +}, 'Registering a property does not affect cascade'); + +test(function(){ + CSS.registerProperty({ + name: '--my-color-2', + syntax: '<color>', + initialValue: 'rgb(4, 4, 4)', + inherits: false + }); + + let element = document.createElement('div'); + element.style = ` + --my-color-2: rgb(2, 2, 2); + --my-color-2: url(not-a-color); + color: var(--my-color-2); + `; + + outer.appendChild(element); + + assert_equals(element.computedStyleMap().get('color').toString(), 'rgb(4, 4, 4)'); +}, 'Registering a property does not affect parsing'); + + +</script> |