65 lines
2.2 KiB
JavaScript
65 lines
2.2 KiB
JavaScript
// META: title=FormData: changes to entry list during iteration
|
|
|
|
// These are tests for next()'s behavior as specified in
|
|
// https://webidl.spec.whatwg.org/#es-iterator-prototype-object
|
|
|
|
"use strict";
|
|
|
|
function createFormData(input) {
|
|
const formData = new FormData();
|
|
|
|
for (const [name, value] of input) {
|
|
formData.append(name, value);
|
|
}
|
|
|
|
return formData;
|
|
}
|
|
|
|
test(() => {
|
|
const formData = createFormData([["foo", "0"],
|
|
["baz", "1"],
|
|
["BAR", "2"]]);
|
|
const actualKeys = [];
|
|
const actualValues = [];
|
|
for (const [name, value] of formData) {
|
|
actualKeys.push(name);
|
|
actualValues.push(value);
|
|
formData.delete("baz");
|
|
}
|
|
assert_array_equals(actualKeys, ["foo", "BAR"]);
|
|
assert_array_equals(actualValues, ["0", "2"]);
|
|
}, "Iteration skips elements removed while iterating");
|
|
|
|
test(() => {
|
|
const formData = createFormData([["foo", "0"],
|
|
["baz", "1"],
|
|
["BAR", "2"],
|
|
["quux", "3"]]);
|
|
const actualKeys = [];
|
|
const actualValues = [];
|
|
for (const [name, value] of formData) {
|
|
actualKeys.push(name);
|
|
actualValues.push(value);
|
|
if (name === "baz")
|
|
formData.delete("foo");
|
|
}
|
|
assert_array_equals(actualKeys, ["foo", "baz", "quux"]);
|
|
assert_array_equals(actualValues, ["0", "1", "3"]);
|
|
}, "Removing elements already iterated over causes an element to be skipped during iteration");
|
|
|
|
test(() => {
|
|
const formData = createFormData([["foo", "0"],
|
|
["baz", "1"],
|
|
["BAR", "2"],
|
|
["quux", "3"]]);
|
|
const actualKeys = [];
|
|
const actualValues = [];
|
|
for (const [name, value] of formData) {
|
|
actualKeys.push(name);
|
|
actualValues.push(value);
|
|
if (name === "baz")
|
|
formData.append("X-yZ", "4");
|
|
}
|
|
assert_array_equals(actualKeys, ["foo", "baz", "BAR", "quux", "X-yZ"]);
|
|
assert_array_equals(actualValues, ["0", "1", "2", "3", "4"]);
|
|
}, "Appending a value pair during iteration causes it to be reached during iteration");
|