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Diffstat (limited to 'testing/web-platform/tests/css/mediaqueries/prefers-reduced-motion.html')
| -rw-r--r-- | testing/web-platform/tests/css/mediaqueries/prefers-reduced-motion.html | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/mediaqueries/prefers-reduced-motion.html b/testing/web-platform/tests/css/mediaqueries/prefers-reduced-motion.html new file mode 100644 index 0000000000..f9a71f5c9f --- /dev/null +++ b/testing/web-platform/tests/css/mediaqueries/prefers-reduced-motion.html @@ -0,0 +1,27 @@ +<!DOCTYPE html> +<link rel="help" href="https://drafts.csswg.org/mediaqueries-5/#prefers-reduced-motion" /> +<script type="text/javascript" src="/resources/testharness.js"></script> +<script type="text/javascript" src="/resources/testharnessreport.js"></script> + +<script type="text/javascript" src="resources/matchmedia-utils.js"></script> +<script> +query_should_be_known("(prefers-reduced-motion)"); +query_should_be_known("(prefers-reduced-motion: no-preference)"); +query_should_be_known("(prefers-reduced-motion: reduce)"); + +query_should_be_unknown("(prefers-reduced-motion: 0)"); +query_should_be_unknown("(prefers-reduced-motion: none)"); +query_should_be_unknown("(prefers-reduced-motion: 10px)"); +query_should_be_unknown("(prefers-reduced-motion: no-preference reduce)"); +query_should_be_unknown("(prefers-reduced-motion: reduced)"); +query_should_be_unknown("(prefers-reduced-motion: no-preference/reduce)"); + +test(() => { + // What this is saying is that 'no-preference' is not the default, so + // irregardless of the current OS settings, (prefers-reduced-motion).matches + // should not be equivalent to (prefers-reduced-motion: no-preference).matches. + let booleanContext = window.matchMedia("(prefers-reduced-motion)"); + let noPreference = window.matchMedia("(prefers-reduced-motion: no-preference)"); + assert_equals(booleanContext.matches, !noPreference.matches); +}, "Check that no-preference evaluates to false in the boolean context"); +</script> |