👀 JestJS testing for monorepos

Author: xmlking

apps/api/README.md

@@ -57,12 +57,19 @@ npm run api:start:prod
 ```bash
 # unit tests
 npm run api:test
+# for api project
+npx jest --projects=apps/api --roots=src
+
 
 # e2e tests
 npm run api:test:e2e
+# for api project
+npx jest --projects=apps/api --roots=e2e
 
 # test coverage
 npm run api:test:cov
+# for api project
+npx jest --projects=apps/api --coverage
 ```
 
 ## Support

apps/api/test/app.e2e-spec.ts renamed to apps/api/e2e/app.e2e-spec.ts

@@ -1,4 +1,4 @@
-import * as request from 'supertest';
+import request from 'supertest';
 import { Test } from '@nestjs/testing';
 import { AppModule } from '../src/app.module';
 import { INestApplication } from '@nestjs/common';

apps/api/jest.config.js

@@ -0,0 +1,5 @@
+const jestBase = require('../../jest.config.base.js');
+module.exports = {
+  ...jestBase,
+  "coverageDirectory": "../../dist/apps/api/coverage",
+};

apps/api/test/jest-e2e.json

@@ -11,7 +11,8 @@
     "experimentalDecorators": true,
     "target": "es6",
     "sourceMap": true,
-    "outDir": "../../dist/apps/api",
+//    "outDir": "../../dist/apps/api",
+    "outDir": "../../dist/out-tsc/apps/api",
     "baseUrl": "./src"
   },
   "include": [

apps/api/tsconfig.json

@@ -1,7 +1,17 @@
 {
-  "extends": "tsconfig.api.json",
+  "extends": "./tsconfig.json",
   "compilerOptions": {
-    "types": ["jest", "node"]
+    "outDir": "../../dist/out-tsc/apps/api",
+    "types": [
+      "jest",
+      "node"
+    ]
   },
-  "include": ["**/*.spec.ts", "**/*.d.ts"]
+  "include": [
+    "**/*.spec.ts",
+    "**/*.d.ts"
+  ],
+  "exclude": [
+    "node_modules"
+  ]
 }

apps/api/tsconfig.spec.json

@@ -0,0 +1,5 @@
+const jestBase = require('../../jest.config.base.js');
+module.exports = {
+  ...jestBase,
+  "coverageDirectory": "../../dist/apps/webapp-e2e/coverage",
+};

apps/webapp-e2e/jest.config.js

@@ -0,0 +1,5 @@
+const jestBase = require('../../jest.config.base.js');
+module.exports = {
+  ...jestBase,
+  "coverageDirectory": "../../dist/apps/webapp/coverage",
+};

apps/webapp/jest.config.js

@@ -0,0 +1,34 @@
+module.exports = {
+  "moduleFileExtensions": ["js", "json", "ts"],
+  "globals": {
+    "ts-jest": {
+      "tsConfigFile": "tsconfig.spec.json"
+    },
+  //   // "__TRANSFORM_HTML__": true,
+  //   // "testResultsProcessor": "./node_modules/jest-html-reporter"
+  },
+  collectCoverage: true,
+  "coverageThreshold": {
+    "global": {
+      "branches": 60,
+      "functions": 60,
+      "lines": 60,
+      "statements": -20
+    }
+  },
+  "transform": {
+    "^.+\\.(t|j)s$": "ts-jest"
+  },
+  "testRegex": ".spec.ts$",
+  // "moduleNameMapper": {
+  //   "@ngx-starter-kit/(.*)": "<rootDir>/libs/$1"
+  // }
+  projects: [
+    'apps/*',
+    // 'libs/*'
+  ],
+  testPathIgnorePatterns: [
+    'apps/webapp',
+    'apps/webapp-e2e'
+  ],
+};

jest.config.base.js

@@ -0,0 +1,6 @@
+const common = require('./jest.config.base');
+
+module.exports = {
+  ...common,
+  verbose: true,
+};

jest.config.js

@@ -45,10 +45,10 @@
     "api:prestart:prod": "rm -rf dist && tsc -p ./apps/api/tsconfig.json",
     "api:webpack": "webpack --config ./apps/api/webpack.config.js",
     "// - API Test": "API Testing",
-    "api:test": "jest",
-    "api:test:watch": "jest --watch",
+    "api:test": "jest --roots=src",
+    "api:test:watch": "jest --roots=src --watch",
+    "api:test:e2e": "jest --roots=e2e",
     "api:test:cov": "jest --coverage",
-    "api:test:e2e": "jest --config ./apps/api/test/jest-e2e.json",
     "// - CI": "Ci Testing"
   },
   "private": true,
@@ -152,18 +152,5 @@
     "webpack-bundle-analyzer": "^2.13.1",
     "webpack-cli": "^3.0.8",
     "webpack-node-externals": "^1.7.2"
-  },
-  "jest": {
-    "moduleFileExtensions": [
-      "js",
-      "json",
-      "ts"
-    ],
-    "rootDir": "apps/api/src",
-    "testRegex": ".spec.ts$",
-    "transform": {
-      "^.+\\.(t|j)s$": "ts-jest"
-    },
-    "coverageDirectory": "../../../dist/api/coverage"
   }
 }