variable-exponential-blowup.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-variables/variable-exponential-blowup.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>CSS Variables Test: Exponential blowup doesn't crash</title>

<meta charset="UTF-8">

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

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

<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">

<link rel="author" href="https://mozilla.org" title="Mozilla">

<link rel="help" href="https://drafts.csswg.org/css-variables/">

<script>

  let css = `

    --v0: "Something really really really long";

`;

  for (let i = 0; i < 31; ++i)

    css += `--v${i + 1}: var(--v${i}) var(--v${i});`;

  let s = document.createElement("style");

  s.innerHTML = `

    :root { ${css}; }

    :root::before { content: var(--v31); }

`;

  document.head.appendChild(s);

</script>

PASS if doesn't crash

<script>

  test(function() {

    getComputedStyle(document.documentElement, "::before").content;

    assert_true(true, "Didn't crash");

});

</script>