File: position-try-ident-function.html

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<!DOCTYPE html>
<title>CSS Anchor Positioning: The ident() function in @position-try/position-try</title>
<link rel="help" href="https://drafts.csswg.org/css-values-5/#ident">
<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#fallback-rule">
<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#position-try-fallbacks">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/computed-testcommon.js"></script>
<div id=target></div>
<script>
  let actual_ident = 'ident("--myident" calc(42 * sign(1em - 1px)))';
  let expected_ident = '--myident42';

  // https://drafts.csswg.org/css-anchor-position-1/#position-try-fallbacks
  test_computed_value('position-try-fallbacks', actual_ident, expected_ident);
  test_computed_value('position-try-fallbacks', `flip-block, ${actual_ident}`,
    `flip-block, ${expected_ident}`);

  // https://drafts.csswg.org/css-anchor-position-1/#position-try-prop
  test_computed_value('position-try', actual_ident, expected_ident);
  test_computed_value('position-try', `most-width ${actual_ident}`,
    `most-width ${expected_ident}`);
</script>