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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
add_task(async function test_about_translations_dropdowns() {
const languagePairs = [
{ fromLang: "en", toLang: "es" },
{ fromLang: "es", toLang: "en" },
// This is not a bi-directional translation.
{ fromLang: "is", toLang: "en" },
];
const { runInPage, cleanup } = await openAboutTranslations({
languagePairs,
dataForContent: languagePairs,
autoDownloadFromRemoteSettings: true,
});
await runInPage(async ({ selectors }) => {
const { document } = content;
await ContentTaskUtils.waitForCondition(
() => {
return document.body.hasAttribute("ready");
},
"Waiting for the document to be ready.",
100,
200
);
/**
* Some languages can be marked as hidden in the dropbdown. This function
* asserts the configuration of the options.
*
* @param {object} args
* @param {string} args.message
* @param {HTMLSelectElement} args.select
* @param {string[]} args.availableOptions
* @param {string} args.selectedValue
*/
function assertOptions({
message,
select,
availableOptions,
selectedValue,
}) {
const options = [...select.options];
info(message);
Assert.deepEqual(
options.filter(option => !option.hidden).map(option => option.value),
availableOptions,
"The available options match."
);
is(selectedValue, select.value, "The selected value matches.");
}
/** @type {HTMLSelectElement} */
const fromSelect = document.querySelector(selectors.fromLanguageSelect);
/** @type {HTMLSelectElement} */
const toSelect = document.querySelector(selectors.toLanguageSelect);
assertOptions({
message: 'From languages have "detect" already selected.',
select: fromSelect,
availableOptions: ["detect", "en", "is", "es"],
selectedValue: "detect",
});
assertOptions({
message:
'The "to" options do not have "detect" in the list, and nothing is selected.',
select: toSelect,
availableOptions: ["", "en", "es"],
selectedValue: "",
});
info('Switch the "to" language to "es".');
toSelect.value = "es";
toSelect.dispatchEvent(new Event("input"));
assertOptions({
message: 'The "from" languages no longer suggest "es".',
select: fromSelect,
availableOptions: ["detect", "en", "is"],
selectedValue: "detect",
});
assertOptions({
message: 'The "to" options remain the same, but "es" is selected.',
select: toSelect,
availableOptions: ["", "en", "es"],
selectedValue: "es",
});
info('Switch the "from" language to English.');
fromSelect.value = "en";
fromSelect.dispatchEvent(new Event("input"));
assertOptions({
message: 'The "to" languages no longer suggest "en".',
select: toSelect,
availableOptions: ["", "es"],
selectedValue: "es",
});
assertOptions({
message: 'The "from" options remain the same, but "en" is selected.',
select: fromSelect,
availableOptions: ["detect", "en", "is"],
selectedValue: "en",
});
});
await cleanup();
});