experiment: Cucumber/Gherkin + Cypress (#24)
* chore: point de départ pour l'expérimentation Cucumber/Gherkin + Cypress
Repart de zéro (pas de reprise du travail précédent sur
feat/cypress-cucumber, fermée/supprimée) — voir la discussion sur la
PR pour le contexte : bug amont dans
@badeball/cypress-cucumber-preprocessor@26.0.0 (require() synchrone de
dépendances @cucumber/* désormais ESM pur, plusieurs incompatibilités
de schéma trouvées en épinglant d'anciennes versions).
* feat(web): installe cypress-cucumber-preprocessor@22.2.0, versions figées
Étape 1 de l'expérimentation. Versions exactes (pas de ^), comme
demandé, pour éviter que le prochain `pnpm install` fasse dériver la
résolution vers des patchs plus récents :
- @badeball/cypress-cucumber-preprocessor@22.2.0
- @bahmutov/cypress-esbuild-preprocessor@2.2.8
- cypress@13.17.0
- esbuild@0.21.5
Contrairement à v26.0.0 (utilisé dans la tentative précédente,
fermée), cette version charge sans ERR_REQUIRE_ESM — aucun
pnpm.overrides nécessaire cette fois. Vérifié :
- `import { addCucumberPreprocessorPlugin }` : OK
- `addCucumberPreprocessorPlugin(on, config)` avec un contexte Cypress
minimal : résout sans erreur, enregistre tous ses event handlers
(before:run, after:run, before:spec, after:spec, after:screenshot,
task)
À vérifier ensuite : cypress.config.ts + un vrai fichier .feature.
* test(web): feature Gherkin jetable pour valider le pipeline preprocessor
Étape 2 de l'expérimentation — un seul scénario minimal (remplir
email/password sur l'écran de connexion) pour vérifier que
addCucumberPreprocessorPlugin@22.2.0 + l'esbuild plugin fonctionnent
de bout en bout, pas juste au chargement. Steps volontairement
autonomes dans login-smoke.steps.ts (pas de fichier partagé) — tout
ce fichier est prévu pour être supprimé une fois validé.
cypress.config.ts : specPattern couvre maintenant *.cy.ts ET *.feature
en parallèle (le reste de la suite reste en .cy.ts classique pour
l'instant).
Testé en local jusqu'au mur GPU/Electron habituel de cet
environnement (chargement de la config + bundling esbuild passent,
pas d'ERR_REQUIRE_ESM) — la vraie exécution du scénario reste à
vérifier via la CI.
* fix(web): renomme login-smoke.steps.ts en login-smoke.ts
Le vrai (et seul) problème du run précédent : "Step implementation
missing for 'I am not signed in'" — pas un souci ESM/CJS cette fois,
juste une convention de nommage. Le pattern stepDefinitions par défaut
du preprocessor cherche, pour cypress/e2e/login-smoke.feature :
- cypress/e2e/login-smoke/**/*.{js,mjs,ts,tsx}
- cypress/e2e/login-smoke.{js,mjs,ts,tsx} <- même basename, SANS ".steps"
- cypress/support/step_definitions/**/*.{js,mjs,ts,tsx}
`login-smoke.steps.ts` ne correspond à aucun des trois. Confirmé par
le message d'erreur lui-même (Cypress liste les 3 patterns essayés).
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5 changed files with 2399 additions and 5 deletions
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@ -1,9 +1,18 @@
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import { addCucumberPreprocessorPlugin } from "@badeball/cypress-cucumber-preprocessor";
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import { createEsbuildPlugin } from "@badeball/cypress-cucumber-preprocessor/esbuild";
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import createBundler from "@bahmutov/cypress-esbuild-preprocessor";
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import { defineConfig } from "cypress";
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export default defineConfig({
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e2e: {
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baseUrl: "http://localhost:5173",
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setupNodeEvents(on) {
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// Experimental — testing whether real Gherkin .feature files work with
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// this preprocessor version (see experiment/cucumber-cypress). Only one
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// throwaway feature exists right now (login.feature); the rest of the
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// suite is still plain .cy.ts, matched by the default `**/*.cy.ts`
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// pattern alongside `**/*.feature`.
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specPattern: ["cypress/e2e/**/*.cy.ts", "cypress/e2e/**/*.feature"],
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async setupNodeEvents(on, config) {
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// Disable GPU for headless/sandboxed environments (e.g. CI containers)
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// where no GPU device is available.
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on("before:browser:launch", (browser, launchOptions) => {
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@ -12,6 +21,16 @@ export default defineConfig({
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}
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return launchOptions;
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});
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await addCucumberPreprocessorPlugin(on, config);
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on(
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"file:preprocessor",
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createBundler({
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plugins: [createEsbuildPlugin(config)],
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}),
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);
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return config;
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},
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},
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});
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12
apps/web/cypress/e2e/login-smoke.feature
Normal file
12
apps/web/cypress/e2e/login-smoke.feature
Normal file
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@ -0,0 +1,12 @@
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Feature: Login screen (throwaway smoke test)
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Just checking that Gherkin + Cypress actually work end to end with the
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currently installed preprocessor version — not meant to stay in the
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suite long-term.
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Scenario: A visitor can type their credentials into the login screen
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Given I am not signed in
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When I visit "/login"
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And I fill in the "email" field with "alice@example.com"
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And I fill in the "password" field with "correct-horse-battery-staple"
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Then the "email" field should have the value "alice@example.com"
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And the "password" field should have the value "correct-horse-battery-staple"
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21
apps/web/cypress/e2e/login-smoke.ts
Normal file
21
apps/web/cypress/e2e/login-smoke.ts
Normal file
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@ -0,0 +1,21 @@
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import { Given, Then, When } from "@badeball/cypress-cucumber-preprocessor";
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// Throwaway smoke test — see login-smoke.feature. Steps are deliberately
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// minimal/self-contained here rather than shared, since this whole file is
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// meant to be deleted once it's proven the preprocessor works.
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Given("I am not signed in", () => {
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cy.intercept("GET", "**/auth/me", { statusCode: 401 });
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});
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When("I visit {string}", (path: string) => {
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cy.visit(path);
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});
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When("I fill in the {string} field with {string}", (fieldId: string, value: string) => {
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cy.get(`#${fieldId}`).type(value);
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});
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Then("the {string} field should have the value {string}", (fieldId: string, value: string) => {
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cy.get(`#${fieldId}`).should("have.value", value);
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});
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@ -24,11 +24,14 @@
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"zod": "^3.25.76"
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},
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"devDependencies": {
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"@badeball/cypress-cucumber-preprocessor": "22.2.0",
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"@bahmutov/cypress-esbuild-preprocessor": "2.2.8",
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"@types/node": "^22.9.0",
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"@types/react": "^18.3.12",
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"@types/react-dom": "^18.3.1",
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"@vitejs/plugin-react": "^4.3.3",
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"cypress": "^13.15.2",
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"cypress": "13.17.0",
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"esbuild": "0.21.5",
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"sass": "^1.102.0",
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"start-server-and-test": "^2.0.8",
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"typescript": "^5.7.2",
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2345
pnpm-lock.yaml
2345
pnpm-lock.yaml
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