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// META: title=FileReader States
'use strict';
test(function () {
assert_true(
"FileReader" in globalThis,
"globalThis should have a FileReader property.",
);
}, "FileReader interface object");
test(function () {
var fileReader = new FileReader();
assert_true(fileReader instanceof FileReader);
}, "no-argument FileReader constructor");
var t_abort = async_test("FileReader States -- abort");
t_abort.step(function () {
var fileReader = new FileReader();
assert_equals(fileReader.readyState, 0);
assert_equals(fileReader.readyState, FileReader.EMPTY);
var blob = new Blob();
fileReader.readAsArrayBuffer(blob);
assert_equals(fileReader.readyState, 1);
assert_equals(fileReader.readyState, FileReader.LOADING);
fileReader.onabort = this.step_func(function (e) {
assert_equals(fileReader.readyState, 2);
assert_equals(fileReader.readyState, FileReader.DONE);
t_abort.done();
});
fileReader.abort();
fileReader.onabort = this.unreached_func("abort event should fire sync");
});
var t_event = async_test("FileReader States -- events");
t_event.step(function () {
var fileReader = new FileReader();
var blob = new Blob();
fileReader.readAsArrayBuffer(blob);
fileReader.onloadstart = this.step_func(function (e) {
assert_equals(fileReader.readyState, 1);
assert_equals(fileReader.readyState, FileReader.LOADING);
});
fileReader.onprogress = this.step_func(function (e) {
assert_equals(fileReader.readyState, 1);
assert_equals(fileReader.readyState, FileReader.LOADING);
});
fileReader.onloadend = this.step_func(function (e) {
assert_equals(fileReader.readyState, 2);
assert_equals(fileReader.readyState, FileReader.DONE);
t_event.done();
});
});
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