testing/web-platform/tests/url/resources/a-element-origin.js


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promise_test(() => fetch("resources/urltestdata.json").then(res => res.json()).then(runURLTests), "Loading data…");

function setBase(base) {
  document.getElementById("base").href = base
}

function bURL(url, base) {
  setBase(base);
  const a = document.createElement("a");
  a.setAttribute("href", url);
  return a;
}

function runURLTests(urlTests) {
  for (const expected of urlTests) {
    // Skip comments and tests without "origin" expectation
    if (typeof expected === "string" || !("origin" in expected))
      continue;

    // Fragments are relative against "about:blank" (this might always be redundant due to requiring "origin" in expected)
    if (expected.base === null && expected.input.startsWith("#"))
      continue;

    // We cannot use a null base for HTML tests
    const base = expected.base === null ? "about:blank" : expected.base;

    test(function() {
      var url = bURL(expected.input, base)
      assert_equals(url.origin, expected.origin, "origin")
    }, "Parsing origin: <" + expected.input + "> against <" + base + ">")
  }
}