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// META: title=XMLHttpRequest.send(invalidUnicodeString)
const LEFT_SURROGATE = '\ud83d';
const RIGHT_SURROGATE = '\udc94';
// Unmatched surrogates should be replaced with the unicode replacement
// character, 0xFFFD. '$' in these templates is replaced with one of
// LEFT_SURROGATE or RIGHT_SURROGATE according to the test.
const TEMPLATES = {
'$': [239, 191, 189],
'$ab': [239, 191, 189, 97, 98],
'a$b': [97, 239, 191, 189, 98],
'ab$': [97, 98, 239, 191, 189],
};
for (const surrogate of [LEFT_SURROGATE, RIGHT_SURROGATE]) {
for (const [template, expected] of Object.entries(TEMPLATES)) {
const invalidString = template.replace('$', surrogate);
const printableString = template.replace(
'$', '\\u{' + surrogate.charCodeAt(0).toString(16) + '}');
async_test(t => {
xhrSendStringAndCheckResponseBody(t, invalidString, expected);
}, `invalid unicode '${printableString}' should be fixed with ` +
`replacement character`);
}
}
// For the sake of completeness, verify that matched surrogates work.
async_test(t => {
xhrSendStringAndCheckResponseBody(t, LEFT_SURROGATE + RIGHT_SURROGATE,
[240, 159, 146, 148]);
}, 'valid unicode should be sent correctly');
function xhrSendStringAndCheckResponseBody(t, string, expected) {
const xhr = new XMLHttpRequest();
xhr.responseType = 'arraybuffer';
xhr.onload = t.step_func(() => {
assert_equals(xhr.status, 200, 'status should be 200');
const actualBody = new Uint8Array(xhr.response);
assert_array_equals(actualBody, expected, 'content should match');
t.done();
});
xhr.onerror = t.unreached_func('no error should occur');
xhr.open('POST', 'resources/content.py', true);
xhr.send(string);
}
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