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test(t => {
const form = document.body.appendChild(document.createElement("form")),
input = form.appendChild(document.createElement("input"));
input.type = "file";
input.name = "hi";
t.add_cleanup(() => {
document.body.removeChild(form);
});
const fd = new FormData(form),
value = fd.get(input.name);
assert_true(value instanceof File, "value is a File");
assert_equals(value.name, "", "name");
assert_equals(value.type, "application/octet-stream", "type");
assert_equals(value.size, 0, "expected value to be an empty File");
}, "Empty <input type=file> is still added to the form's entry list");
async_test((t) => {
const form = document.body.appendChild(document.createElement("form")),
input = form.appendChild(document.createElement("input")),
target = document.createElement("iframe");
target.name = "target1";
document.body.appendChild(target);
form.method = "POST";
form.action = "/fetch/api/resources/echo-content.py";
form.enctype = "application/x-www-form-urlencoded";
form.target = target.name;
input.type = "file";
input.name = "hi";
t.add_cleanup(() => {
document.body.removeChild(form);
document.body.removeChild(target);
});
target.addEventListener("load", t.step_func_done(() => {
assert_equals(target.contentDocument.body.textContent, "hi=");
}));
form.submit();
}, "Empty <input type=file> shows up in the urlencoded serialization");
async_test((t) => {
const form = document.body.appendChild(document.createElement("form")),
input = form.appendChild(document.createElement("input")),
target = document.createElement("iframe");
target.name = "target2";
document.body.appendChild(target);
form.method = "POST";
form.action = "/fetch/api/resources/echo-content.py";
form.enctype = "multipart/form-data";
form.target = target.name;
input.type = "file";
input.name = "hi";
t.add_cleanup(() => {
document.body.removeChild(form);
document.body.removeChild(target);
});
target.addEventListener("load", t.step_func_done(() => {
// We use \n rather than \r\n because newlines get normalized as a result
// of HTML parsing.
const found = target.contentDocument.body.textContent;
const boundary = found.split("\n")[0];
const expected = [
boundary,
'Content-Disposition: form-data; name="hi"; filename=""',
"Content-Type: application/octet-stream",
"",
"",
boundary + "--",
"",
].join("\n");
assert_equals(found, expected);
}));
form.submit();
}, "Empty <input type=file> shows up in the multipart/form-data serialization");
async_test((t) => {
const form = document.body.appendChild(document.createElement("form")),
input = form.appendChild(document.createElement("input")),
target = document.createElement("iframe");
target.name = "target3";
document.body.appendChild(target);
form.method = "POST";
form.action = "/fetch/api/resources/echo-content.py";
form.enctype = "text/plain";
form.target = target.name;
input.type = "file";
input.name = "hi";
t.add_cleanup(() => {
document.body.removeChild(form);
document.body.removeChild(target);
});
target.addEventListener("load", t.step_func_done(() => {
// The actual result is "hi=\r\n"; the newline gets normalized as a side
// effect of the HTML parsing.
assert_equals(target.contentDocument.body.textContent, "hi=\n");
}));
form.submit();
}, "Empty <input type=file> shows up in the text/plain serialization");
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