fieldset-content-before-legend.html

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This WPT test may be referenced by the following Test IDs:
- /html/rendering/non-replaced-elements/the-fieldset-and-legend-elements/fieldset-content-before-legend.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>fieldset content before legend</title>

<script src=/resources/testharness.js></script>

<script src=/resources/testharnessreport.js></script>

<style>

fieldset {

  /* Paddings might have fractional values by default, and they can cause

     rounding differences between the test element and the reference element. */

  padding: 0;

</style>

<fieldset id=test>

  <legend>legend</legend>

</fieldset>

<fieldset id=ref>

  <legend>legend</legend>

X Y

</fieldset>

<fieldset id="test2">

  P<span id="hidden" style="display:none;">AS</span><legend>legend</legend>S

</fieldset>

<script>

  test(() => {

    const testElm = document.getElementById('test');

    const refElm = document.getElementById('ref');

    assert_equals(testElm.clientHeight, refElm.clientHeight);

});

  test(() => {

    const testElm = document.getElementById('test2');

    testElm.clientHeight;

    const span = document.getElementById('hidden');

    span.style.display = 'inline';

    testElm.clientHeight;

  }, 'Showing a node just before the rendered legend should not crash');

</script>