firefox-main/testing/web-platform/tests/html/editing/dnd/datastore/datatransfer-getdata-url.html

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Test Info: Warnings

<!DOCTYPE html>
<meta charset="utf-8">
<title>DataTransfer.getData("url") converts text/uri-list to a single URL</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
// getData() step 6 sets the convert-to-URL flag when the requested format is "url", and
// step 9 then parses the text/uri-list data and returns only its first URL. Comment lines
// are those beginning with "#", per RFC 2483.
function uriListDataTransfer(uriList) {
const dt = new DataTransfer();
dt.setData("text/uri-list", uriList);
return dt;
}
test(() => {
assert_equals(uriListDataTransfer("https://a.example/1").getData("url"),
}, "A single URL is returned unchanged");
test(() => {
assert_equals(uriListDataTransfer("https://a.example/1\nhttps://b.example/2").getData("url"),
}, "Only the first URL is returned, for LF line endings");
test(() => {
assert_equals(uriListDataTransfer("https://a.example/1\r\nhttps://b.example/2").getData("url"),
}, "Only the first URL is returned, for CRLF line endings");
test(() => {
assert_equals(uriListDataTransfer("https://a.example/1\n").getData("url"),
assert_equals(uriListDataTransfer("https://a.example/1\r\n").getData("url"),
}, "A trailing line ending is not part of the URL");
test(() => {
assert_equals(uriListDataTransfer("# comment\nhttps://a.example/1").getData("url"),
assert_equals(uriListDataTransfer("# one\n# two\nhttps://a.example/1\n# three").getData("url"),
}, "Comment lines are skipped");
test(() => {
assert_equals(uriListDataTransfer("https://a.example/1\n\nhttps://b.example/2").getData("url"),
}, "A blank line after the first URL does not affect the result");
test(() => {
assert_equals(uriListDataTransfer("").getData("url"), "");
assert_equals(uriListDataTransfer("# only a comment").getData("url"), "");
assert_equals(uriListDataTransfer("\r\n\r\n").getData("url"), "");
}, "The empty string is returned when the list contains no URL");
test(() => {
assert_equals(new DataTransfer().getData("url"), "",
"no text/uri-list item is present");
}, "The empty string is returned when there is no text/uri-list item");
test(() => {
for (const format of ["url", "URL", "Url", " url ", "\turl\n"]) {
assert_equals(uriListDataTransfer(uriList).getData(format), "https://a.example/1",
`format ${JSON.stringify(format)} must convert to a URL`);
}
}, "The format is matched ASCII case-insensitively after stripping whitespace");
test(() => {
const uriList = "# comment\nhttps://a.example/1\nhttps://b.example/2";
assert_equals(uriListDataTransfer(uriList).getData("text/uri-list"), uriList,
"text/uri-list must be returned unchanged");
assert_equals(uriListDataTransfer(uriList).getData("text/uri-list;charset=utf-8"), uriList,
"a text/uri-list parameter must not set the convert-to-URL flag");
}, "Requesting text/uri-list does not convert to a URL");
// Blank lines are not URLs, so "the first URL from the list" skips them. RFC 2483 only
// specifies the treatment of comment lines, so this case is under-specified; Gecko returns
// the empty string here instead of the first URL.
test(() => {
assert_equals(uriListDataTransfer("\n\nhttps://a.example/1").getData("url"),
assert_equals(uriListDataTransfer("\r\n\r\nhttps://a.example/1").getData("url"),
}, "Leading blank lines are skipped");
</script>