| <!DOCTYPE html> |
| <title>CSS Media Query Test: update media feature</title> |
| <link rel="help" href="https://drafts.csswg.org/mediaqueries-4/#descdef-media-update"> |
| <meta assert="The test is supposed to be run on fast computer displays as it will no match otherwise. The definition of fast can be found in the spec link."> |
| <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("(update)"); |
| query_should_be_known("(update: none)"); |
| query_should_be_known("(update: slow)"); |
| query_should_be_known("(update: fast)"); |
| |
| query_should_be_unknown("(update: ?)"); |
| query_should_be_unknown("(update: 10px)"); |
| query_should_be_unknown("(update: 0)"); |
| |
| test(() => { |
| let match_standard = window.matchMedia("(update: fast)"); |
| assert_true(match_standard.matches); |
| }, "Check that update: fast always matches fast displays"); |
| |
| test(() => { |
| let match_standard = window.matchMedia("(update: slow)"); |
| assert_false(match_standard.matches); |
| }, "Check that update: slow doesn't match fast displays"); |
| |
| test(() => { |
| let match_standard = window.matchMedia("(update: none)"); |
| assert_false(match_standard.matches); |
| }, "Check that update: none doesn't match fast displays"); |
| |
| test(() => { |
| let match_standard = window.matchMedia("(update)"); |
| assert_true(match_standard.matches); |
| }, "Check that update always matches non printing documents"); |
| </script> |
