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promise_test(() => fetch("resources/IdnaTestV2.json").then(res => res.json()).then(runTests), "Loading data…");
// Performance impact of this seems negligible (performance.now() diff in WebKit went from 48 to 52)
// and there was a preference to let more non-ASCII hit the parser.
function encodeHostEndingCodePoints(input) {
let output = "";
for (const codePoint of input) {
if ([":", "/", "?", "#", "\\"].includes(codePoint)) {
output += encodeURIComponent(codePoint);
} else {
output += codePoint;
}
}
return output;
}
function runTests(idnaTests) {
for (const idnaTest of idnaTests) {
if (typeof idnaTest === "string") {
continue // skip comments
}
if (idnaTest.input === "") {
continue // cannot test empty string input through new URL()
}
// Percent-encode the input such that ? and equivalent code points do not end up counting as
// part of the URL, but are parsed through the host parser instead.
const encodedInput = encodeHostEndingCodePoints(idnaTest.input);
test(() => {
if (idnaTest.output === null) {
assert_throws_js(TypeError, () => new URL(`https://${encodedInput}/x`));
} else {
const url = new URL(`https://${encodedInput}/x`);
assert_equals(url.host, idnaTest.output);
assert_equals(url.hostname, idnaTest.output);
assert_equals(url.pathname, "/x");
assert_equals(url.href, `https://${idnaTest.output}/x`);
}
}, `ToASCII("${idnaTest.input}")${idnaTest.comment ? " " + idnaTest.comment : ""}`);
}
}