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https://github.com/web-platform-tests/wpt
26 December 2018, 22:31:15 UTC
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Tip revision: d3d5233de66e6f5c43434262ab0f86a8f9fd2a51 authored by Robert Ma on 05 October 2018, 16:01:01 UTC
Test unicode: ABC~ยคโ€ขโ˜…ๆ˜Ÿ๐ŸŒŸๆ˜Ÿโ˜…โ€ขยค~XYZ
Tip revision: d3d5233
form-data-set-usv.html 
<!DOCTYPE html>
<meta charset="utf-8">
<title>Submitting a form data set that contains unpaired surrogates must convert to Unicode scalar values</title>
<link rel="author" title="Domenic Denicola" href="mailto:d@domenic.me">
<link rel="help" href="https://html.spec.whatwg.org/multipage/forms.html#constructing-form-data-set">
<link rel="help" href="https://github.com/whatwg/html/issues/1490">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<iframe id="testframe" src="form-data-set-usv-form.html"></iframe>
<iframe id="testframe2" src="form-data-set-usv-form.html"></iframe>

<script>
"use strict";

async_test(t => {
  window.addEventListener("load", t.step_func(() => {
    const iframe = document.querySelector("#testframe");
    const form = iframe.contentWindow.document.querySelector("form");

    iframe.onload = t.step_func_done(() => {
      const result = iframe.contentWindow.document.body.textContent;

      assert_equals(result,
        "69 6e 70 75 74 31 ef bf bd 3d 69 6e 70 75 74 31 ef bf bd " + // input1\uFFFD=input1\uFFFD
        "0d 0a "                                                    + // \r\n
        "69 6e 70 75 74 32 ef bf bd 3d 69 6e 70 75 74 32 ef bf bd " + // input2\uFFFD=input2\uFFFD
        "0d 0a "                                                    + // \r\n
        "69 6e 70 75 74 33 ef bf bd 3d 69 6e 70 75 74 33 ef bf bd " + // input3\uFFFD=input3\uFFFD
        "0d 0a "                                                    + // \r\n
        "69 6e 70 75 74 34 ef bf bd 3d 69 6e 70 75 74 34 ef bf bd " + // input4\uFFFD=input4\uFFFD
        "0d 0a"                                                       // \r\n
      );

      // ef bf bd is the UTF-8 encoding of U+FFFD
    });

    form.submit();
  }));
}, 'Strings from form controls should be converted to Unicode scalar values in form submission');

async_test(t => {
  window.addEventListener("load", t.step_func_done(() => {
    const iframe = document.querySelector("#testframe2");
    const formData = new FormData(iframe.contentWindow.document.querySelector("form"));
    assert_equals(formData.get("input1\uFFFD"), "input1\uFFFD");
    assert_equals(formData.get("input2\uFFFD"), "input2\uFFFD");
    assert_equals(formData.get("input3\uFFFD"), "input3\uFFFD");
    assert_equals(formData.get("input4\uFFFD"), "input4\uFFFD");
  }));
}, 'Strings from form controls should be converted to Unicode scalar values in FormData');
</script>
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