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Test Info: Warnings

<!DOCTYPE html>
<script type="text/javascript" src="/resources/testharness.js"></script>
<script type="text/javascript" src="/resources/testharnessreport.js"></script>
<script type="text/javascript" src="/css/mediaqueries/resources/matchmedia-utils.js"></script>
<script>
query_should_be_known("(display-state: normal)");
query_should_be_known("(display-state: minimized)");
query_should_be_known("(display-state: maximized)");
query_should_be_known("(display-state: fullscreen)");
query_should_be_known("(display-state)");
query_should_be_unknown("(display-state: 0)");
query_should_be_unknown("(display-state: none)");
query_should_be_unknown("(display-state: random)");
query_should_be_unknown("(display-state: 10px)");
query_should_be_unknown("(display-state: 1%)");
test(() => {
let booleanContext = window.matchMedia("(display-state)");
assert_true(booleanContext.matches);
}, "Check that display-state evaluates to true in the boolean context");
</script>