我嘗試在帶有 Cucumber 和 TypeScript 的 Angular 12 專案中使用 Cypress 進行 e2e 測驗。
Cypress 本身通過以下方式成功啟動，npx cypress open并顯示了我創建的功能檔案：
當我開始測驗此功能時，收到以下錯誤：
我在這里發現了一個類似的問題，但沒有我可以應用的解決方案。我相信發生此錯誤是因為我使用的是 cypress 自己的瀏覽器，并且流程變數在那里不可用。我也看過這個存盤庫，但沒有找到任何可以解決這個問題的方法。
該專案的 package.json 如下所示：
{ "name": "randomAppName", "version": "0.0.0", "scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"watch": "ng build --watch --configuration development",
"test": "ng test",
"i18n": "ng extract-i18n --output-path src/assets/i18n",
"lint": "eslint . --ext .ts,.js",
"lint-fix": "eslint . --ext .ts,.js" }, "private": true, "dependencies": {
"@angular/animations": "~12.2.0",
"@angular/cdk": "^12.2.5",
"@angular/common": "~12.2.0",
"@angular/compiler": "~12.2.0",
"@angular/core": "~12.2.0",
"@angular/forms": "~12.2.0",
"@angular/material": "^12.2.5",
"@angular/platform-browser": "~12.2.0",
"@angular/platform-browser-dynamic": "~12.2.0",
"@angular/router": "~12.2.0",
"@ngrx/effects": "^12.4.0",
"@ngrx/store": "^12.4.0",
"@ngrx/store-devtools": "^12.4.0",
"moment": "^2.29.1",
"ngrx-forms": "^6.3.5",
"path-browserify": "^1.0.1",
"rxjs": "~6.6.0",
"tslib": "^2.3.0",
"zone.js": "~0.11.4" }, "cypress-cucumber-preprocessor": {
"nonGlobalStepDefinitions": true }, "devDependencies": {
"@4tw/cypress-drag-drop": "^1.8.0",
"@angular-devkit/build-angular": "~12.2.5",
"@angular-eslint/builder": "12.7.0",
"@angular-eslint/eslint-plugin": "12.7.0",
"@angular-eslint/eslint-plugin-template": "12.7.0",
"@angular-eslint/schematics": "12.7.0",
"@angular-eslint/template-parser": "12.7.0",
"@angular/cdk": "^12.0.1",
"@angular/cli": "~12.2.5",
"@angular/common": "^12.0.1",
"@angular/compiler-cli": "~12.2.0",
"@angular/core": "^12.0.1",
"@angular/localize": "^12.2.5",
"@cucumber/cucumber": "^7.2.1",
"@cypress/browserify-preprocessor": "^3.0.1",
"@cypress/webpack-preprocessor": "^5.9.0",
"@jscutlery/cypress-harness": "^0.3.4",
"@types/jasmine": "~3.8.0",
"@types/node": "^12.11.1",
"@typescript-eslint/eslint-plugin": "4.28.2",
"@typescript-eslint/parser": "4.28.2",
"cucumber": "^6.0.5",
"cucumber-pretty": "^6.0.0",
"cucumber-tsflow": "^4.0.0-rc.1",
"cypress": "^8.4.0",
"cypress-cucumber-preprocessor": "^4.3.1",
"cypress-mouse-position": "^1.0.0",
"cypress-pipe": "^2.0.0",
"cypress-xpath": "^1.6.2",
"eslint": "^7.26.0",
"eslint-config-airbnb-base": "^14.2.1",
"eslint-plugin-import": "^2.25.2",
"jasmine-core": "~3.8.0",
"jest": "^27.2.0",
"karma": "~6.3.0",
"karma-chrome-launcher": "~3.1.0",
"karma-coverage": "~2.0.3",
"karma-jasmine": "~4.0.0",
"karma-jasmine-html-reporter": "~1.7.0",
"prettier": "^2.5.1",
"rxjs": "^6.6.7",
"ts-loader": "^9.2.6",
"ts-node": "^9.1.1",
"tsify": "^4.0.1",
"typescript": "~4.3.5",
"webpack": "^5.65.0",
"zone.js": "^0.11.4" }, "browser": {
"fs": false,
"os": false,
"path": false } }
webpack.config.js 如下所示：
module.exports = {
resolve: {
modules: ["node_modules"],
extensions: ["*", ".js", ".jsx", ".json"],
symlinks: false,
cacheWithContext: false,
fallback: { path: require.resolve("path-browserify") },
},
node: {},
module: {
rules: [
{
test: /\.ts$/,
exclude: /node_modules/,
use: [
{
loader: "ts-loader",
},
],
},
{
test: /\.feature$/,
use: [
{
loader: "cypress-cucumber-preprocessor/loader",
},
],
},
],
},
};
請讓我知道，如果需要任何其他資訊，我將很樂意提供。
uj5u.com熱心網友回復：
process是undefined因為在您的情況下，代碼正在瀏覽器中執行。
您可能使用了與 webpack 4 一起使用的配置，該配置為path（您已經包含后備）或在這種情況下提供了模擬API process。
Webpack 5 發行說明：洗掉了 node.process
看起來黃瓜決議器實際上是在瀏覽器背景關系中使用這個加載器通過將黃瓜代碼發送到瀏覽器包來執行的。
如果沒有特別的理由，我建議根本不要使用 webpack。您甚至不需要使用最新的 cyperss 版本來轉換打字稿。相反，我建議使用cypress-cucumber-preprocessor readme 中建議的設定：
如果需要 webpack，您可以嘗試模擬流程變數。我驗證了support/index.js在將 webpack 5 與原始示例存盤庫一起使用時添加以下內容：
window.process = {
argv: [],
env: {},
};
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