wpt/css/css-values/urls/url-request-modifiers-import-parsing.sub.html at master · web-platform-tests/wpt · GitHub

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<!DOCTYPE html>
<title>Request URL Modifiers: @import parsing</title>
<link rel="help" href="https://drafts.csswg.org/css-values-5/#request-url-modifiers">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
function test_import_valid(description, src, expected) {
  test(t => {
    const style = document.createElement("style");
    style.textContent = `@import ${src};`;
    document.head.appendChild(style);
    t.add_cleanup(() => style.remove());
    assert_equals(style.sheet.cssRules.length, 1, "should have one rule");
    const rule = style.sheet.cssRules[0];
    assert_equals(rule.type, CSSRule.IMPORT_RULE, "should be an @import rule");
    if (expected !== undefined) {
      assert_true(rule.cssText.includes(expected),
          `cssText should contain "${expected}", got: ${rule.cssText}`);
    }
  }, description);
}

function test_import_invalid(description, src) {
  test(t => {
    const style = document.createElement("style");
    style.textContent = `@import ${src};`;
    document.head.appendChild(style);
    t.add_cleanup(() => style.remove());
    assert_equals(style.sheet.cssRules.length, 0, "should have no rules");
  }, description);
}

test_import_valid(
  "cross-origin(anonymous) in @import",
  'url("http://{{hosts[][]}}:{{ports[http][0]}}/test.css" cross-origin(anonymous))');

test_import_valid(
  "referrer-policy(no-referrer) in @import",
  'url("http://{{hosts[][]}}:{{ports[http][0]}}/test.css" referrer-policy(no-referrer))');

test_import_valid(
  "integrity() in @import",
  'url("http://{{hosts[][]}}:{{ports[http][0]}}/test.css" integrity("sha384-foobar"))');

test_import_valid(
  "multiple modifiers in @import",
  'url("http://{{hosts[][]}}:{{ports[http][0]}}/test.css" cross-origin(anonymous) referrer-policy(no-referrer))');

test_import_valid(
  "all three modifiers in @import",
  'url("http://{{hosts[][]}}:{{ports[http][0]}}/test.css" cross-origin(anonymous) integrity("sha384-foobar") referrer-policy(no-referrer))');

// Serialization round-trip
test_import_valid(
  "cross-origin(anonymous) serialized in @import cssText",
  'url("http://{{hosts[][]}}:{{ports[http][0]}}/test.css" cross-origin(anonymous))',
  'cross-origin(anonymous)');

test_import_valid(
  "multiple modifiers serialized in canonical order in @import cssText",
  'url("http://{{hosts[][]}}:{{ports[http][0]}}/test.css" referrer-policy(no-referrer) cross-origin(anonymous))',
  'cross-origin(anonymous) referrer-policy(no-referrer)');

// Invalid cases
test_import_invalid(
  "duplicate cross-origin in @import",
  'url("http://{{hosts[][]}}:{{ports[http][0]}}/test.css" cross-origin(anonymous) cross-origin(anonymous))');

test_import_invalid(
  "duplicate cross-origin in @import between referrer-policy",
  'url("http://{{hosts[][]}}:{{ports[http][0]}}/test.css" cross-origin(anonymous) referrer-policy(no-referrer) cross-origin(anonymous))');

test_import_invalid(
  "unquoted url() with cross-origin in @import",
  'url(http://{{hosts[][]}}:{{ports[http][0]}}/test.css cross-origin(anonymous))');
</script>