url/failure.html

<!doctype html>
<meta charset=utf-8>
<title>Test URL parser failure consistency</title>
<meta name=timeout content=long>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<div id=log></div>
<iframe></iframe>
<script>
promise_test(() => fetch("resources/urltestdata.json").then(res => res.json()).then(runTests), "Loading data…")

function runTests(testData) {
  for(const test of testData) {
    if (typeof test === "string" || !test.failure || test.base !== "about:blank") {
      continue
    }

    const name = test.input + " should throw"

    self.test(() => { // URL's constructor's first argument is tested by url-constructor.html
      // If a URL fails to parse with any valid base, it must also fail to parse with no base, i.e.
      // when used as a base URL itself.
      assert_throws_js(TypeError, () => new URL("about:blank", test.input));
    }, "URL's constructor's base argument: " + name)

    self.test(() => {
      const url = new URL("about:blank")
      assert_throws_js(TypeError, () => url.href = test.input)
    }, "URL's href: " + name)

    // The following use cases resolve the URL input relative to the current
    // document's URL. If this test input could be construed as a valid URL
    // when resolved against a base URL, skip these cases.
    if (!test.inputCanBeRelative) {
      self.test(() => {
        const client = new XMLHttpRequest()
        assert_throws_dom("SyntaxError", () => client.open("GET", test.input))
      }, "XHR: " + name)

      self.test(() => {
        assert_throws_js(TypeError, () => self.navigator.sendBeacon(test.input))
      }, "sendBeacon(): " + name)

      self.test(() => {
        assert_throws_js(self[0].TypeError, () => self[0].location = test.input)
      }, "Location's href: " + name)

      self.test(() => {
        assert_throws_dom("SyntaxError", () => self.open(test.input).close())
      }, "window.open(): " + name)
    }
  }
}
</script>