| <!DOCTYPE html> |
| <link rel="help" href="https://drafts.csswg.org/mediaqueries-5/#prefers-color-scheme" /> |
| <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_css_parseable("(prefers-color-scheme)"); |
| query_should_be_css_parseable("(prefers-color-scheme: light)"); |
| query_should_be_css_parseable("(prefers-color-scheme: dark)"); |
| |
| query_should_not_be_css_parseable("(prefers-color-scheme: 0)"); |
| query_should_not_be_css_parseable("(prefers-color-scheme: none)"); |
| query_should_not_be_css_parseable("(prefers-color-scheme: 10px)"); |
| query_should_not_be_css_parseable("(prefers-color-scheme: dark 0)"); |
| query_should_not_be_css_parseable("(prefers-color-scheme: dark light)"); |
| query_should_not_be_css_parseable("(prefers-color-scheme: light/dark)"); |
| query_should_not_be_css_parseable("(prefers-color-scheme: no-preference)"); |
| |
| query_should_be_js_parseable("(prefers-color-scheme)"); |
| query_should_be_js_parseable("(prefers-color-scheme: light)"); |
| query_should_be_js_parseable("(prefers-color-scheme: dark)"); |
| |
| query_should_not_be_js_parseable("(prefers-color-scheme: 0)"); |
| query_should_not_be_js_parseable("(prefers-color-scheme: none)"); |
| query_should_not_be_js_parseable("(prefers-color-scheme: 10px)"); |
| query_should_not_be_js_parseable("(prefers-color-scheme: dark 0)"); |
| query_should_not_be_js_parseable("(prefers-color-scheme: dark light)"); |
| query_should_not_be_js_parseable("(prefers-color-scheme: light/dark)"); |
| query_should_not_be_js_parseable("(prefers-color-scheme: no-preference)"); |
| |
| test(() => { |
| let booleanContext = window.matchMedia("(prefers-color-scheme)"); |
| assert_true(booleanContext.matches); |
| }, "Check that prefer-color-scheme evaluates to true in the boolean context"); |
| </script> |
