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[tests] migrate from jest to vitest (#3940)

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This is a big change, but I think it's a good move, as `vitest` is much
more modern than `jest`.

I'm excited about the UI watch feature (run `npm run test:ui`), for
example - it's really helpful and saves time when debugging tests. I had
to adjust a few tests because they had time related issues, but
basically we are now testing the same things - even a bit better and
less flaky (I hope).

What do you think?
This commit is contained in:
Kristjan ESPERANTO
2025-11-03 19:47:01 +01:00
committed by GitHub
parent b542f33a0a
commit 462abf7027
30 changed files with 2370 additions and 3562 deletions
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10
tests/e2e/translations_spec.js
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@@ -14,7 +14,7 @@ function createTranslationTestEnvironment () {
const translatorJs = fs.readFileSync(path.join(__dirname, "..", "..", "js", "translator.js"), "utf-8");
const dom = new JSDOM("", { url: "http://localhost:3000", runScripts: "outside-only" });
dom.window.Log = { log: jest.fn(), error: jest.fn() };
dom.window.Log = { log: vi.fn(), error: vi.fn() };
dom.window.translations = translations;
dom.window.eval(translatorJs);
@@ -75,7 +75,7 @@ describe("translations", () => {
it("should load translation file", async () => {
const { Translator, Module, config } = dom.window;
config.language = "en";
Translator.load = jest.fn().mockImplementation((_m, _f, _fb) => null);
Translator.load = vi.fn().mockImplementation((_m, _f, _fb) => null);
Module.register("name", { getTranslations: () => translations });
const MMM = Module.create("name");
@@ -88,7 +88,7 @@ describe("translations", () => {
it("should load translation + fallback file", async () => {
const { Translator, Module } = dom.window;
Translator.load = jest.fn().mockImplementation((_m, _f, _fb) => null);
Translator.load = vi.fn().mockImplementation((_m, _f, _fb) => null);
Module.register("name", { getTranslations: () => translations });
const MMM = Module.create("name");
@@ -103,7 +103,7 @@ describe("translations", () => {
it("should load translation fallback file", async () => {
const { Translator, Module, config } = dom.window;
config.language = "--";
Translator.load = jest.fn().mockImplementation((_m, _f, _fb) => null);
Translator.load = vi.fn().mockImplementation((_m, _f, _fb) => null);
Module.register("name", { getTranslations: () => translations });
const MMM = Module.create("name");
@@ -116,7 +116,7 @@ describe("translations", () => {
it("should load no file", async () => {
const { Translator, Module } = dom.window;
Translator.load = jest.fn();
Translator.load = vi.fn();
Module.register("name", {});
const MMM = Module.create("name");