在 angular 7 中为 ng e2e 测试设置特定环境而不为应用程序提供服务

Question

我最近将我的应用程序升级到了 angular 7。我正在尝试使用特定环境运行我的 ng e2e 测试。此外，我不希望每次为应用程序运行 e2e 测试时都运行新服务器。

使用 angular 5 时，我曾经使用 CLI 按照以下方式进行操作：

ng e2e -e test --config protractor.conf.test.js --no-serve

我的测试环境在 environment.test.ts 文件中设置，量角器配置（baseURL 和无头浏览器）在 protractor.conf.test.js 文件中设置。每次运行 e2e 测试时，我都使用 no-serve 标志停止运行新服务器。

对于 angular 7，我在 angular.json 文件中进行了以下更改：

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "sample-app": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist",
            "index": "src/index.html",
            "main": "src/main.ts",
            "tsConfig": "src/tsconfig.app.json",
            "polyfills": "src/polyfills.ts",
            "assets": ["src/assets", "src/favicon.ico"],
            "styles": ["src/styles.css"],
            "scripts": []
          },
          "configurations": {
            "production": {
                ...
            },
            "test": {
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.test.ts"
                }
              ]
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "sample-app:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "sample-app:build:production"
            },
            "test": {
              "browserTarget": "sample-app:build:test"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "sample-app:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "src/test.ts",
            "karmaConfig": "./karma.conf.js",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.spec.json",
            "scripts": [],
            "styles": ["src/styles.css"],
            "assets": ["src/assets", "src/favicon.ico"]
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": ["src/tsconfig.app.json", 
"src/tsconfig.spec.json"],
            "exclude": ["**/node_modules/**"]
          }
        }
      }
    },
    "sample-app-e2e": {
      "root": "e2e",
      "sourceRoot": "e2e",
      "projectType": "application",
      "architect": {
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "./protractor.conf.js",
            "devServerTarget": "sample-app:serve"
          },
          "configurations": {
            "test": {
              "protractorConfig": "./protractor.conf.test.js",
              "devServerTarget": ""
            },
            "production": {
              "protractorConfig": "./protractor.conf.prod.js",
              "devServerTarget": ""
            }
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": ["e2e/tsconfig.e2e.json"],
            "exclude": ["**/node_modules/**"]
          }
        }
      }
    }
  },
  "defaultProject": "sample-app",
  "schematics": {
    "@schematics/angular:component": {
      "prefix": "app",
      "styleext": "css"
    },
    "@schematics/angular:directive": {
      "prefix": "app"
    }
  }
}

我在构建配置下设置了“测试”配置，在服务配置下设置了 browserTarget。

来到 sample-app-e2e JSON：

protractorConfig：指向相关的量角器配置文件（protractor.conf.test.js）。

空 devServerTarget：相当于 --no-serve 标志。

然后我使用 CLI 运行 e2e 测试：

ng e2e --configuration=test

现在，如何设置用于 e2e 测试的特定环境？我知道可以设置的一种方法是通过 devServerTarget 属性。例如：

"devServerTarget": "sample-app:serve:test"

但这也意味着 --no-serve 标志将不被尊重。

有没有办法实现这两种结果（特定环境+无服务）？感谢帮助。

Answer 1

简而言之，您必须完全忽略 Angular cli。我疯了，没有任何效果，就我而言，我有一个非常大的项目。我每次都要等几分钟。

使用ngserve运行一个 shell，并使用protractor e2e/your-conf.js运行另一个 shell