Provide "selectProjects" as option for nx jest executor

[killmenot]

Hello,

In my application I have 2 types of tests: unit and integration (not e2e). Integration tests force me to run them via jest-serial-runner, so my jest.config.ts looks the following:

export default {
  displayName: 'test-api',
  transform: {
    '^.+\\.[tj]s$': ['ts-jest', { tsconfig: '<rootDir>/tsconfig.spec.json' }],
  },
  moduleFileExtensions: ['ts', 'js', 'html'],
  coverageDirectory: '../../coverage/apps/test-api',
  projects: [
    {
      displayName: 'unit',
      testEnvironment: 'node',
      preset: '../../jest.preset.js',
      testMatch: ['**/?(*.)+(test).[jt]s?(x)'],
    },
    {
      displayName: 'integration',
      testEnvironment: 'node',
      preset: '../../jest.preset.js',
      runner: "jest-serial-runner",
      testMatch: ['**/?(*.)+(spec).[jt]s?(x)'],
    },
  ]
};

Using cli I can run one or another group

nx run test-api:test -- --selectProjects=unit
nx run test-api:test -- --selectProjects=integration

However, I'd prefer to have an option in jest executor to do it via adding configurations in project.json

nx run test-api:test:unit
nx run test-api:test:integration

{
  "name": "test-api",
  "$schema": "../../node_modules/nx/schemas/project-schema.json",
  "sourceRoot": "apps/test-api/src",
  "projectType": "application",
  "tags": [],
  "targets": {
    "test": {
      "executor": "@nx/jest:jest",
      "outputs": ["{workspaceRoot}/coverage/{projectRoot}"],
      "options": {
        "jestConfig": "apps/test-api/jest.config.ts"
      },
      "configurations": {
        "unit": {
          "selectProjects": ["unit"]
        },
        "integration": {
          "selectProjects": ["integration"]
        },
      }
    }
  }
}

[jaysoo]

Hi @killmenot thanks for the suggestion. One of the goal of Project Crystal is to make things like this easier to do without having to update the executor.

Is there a reason you prefer extra configurations over passing CLI args?