fileReader.any.js - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /FileAPI/fileReader.any.html - WPT Dashboard Interop Dashboard
- /FileAPI/fileReader.any.worker.html - WPT Dashboard Interop Dashboard

// 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();

});

});