Jest Unit tests for Node Typescript app

TypeScriptUnitTestsWithJest/README.md

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+# Jest unit tests using Typescript
+
+This "project" was done for learning proposes. The application written with Typescript wasn't the focus of this project, the goal was to learn Jest features for unit testing with NodeJS Typescript applications.
+
+
+## Jest Features covered:
+
+* Different Asserts
+* Parameterize
+* Hooks (Setup, Teardown)
+* Testing for Errors
+* Code Coverage
+* Test Doubles (Stubs, Fakes, Mocks, Spies, Mock Modules)
+
+## Application Overview
+
+### Reservation handler application
+
+This simple app handles reservations for meeting rooms:
+
+* Users can register with a username and password.
+* Users can login with a user and a password.
+* Logged in users can create, view, update or delete reservations.
+
+## Getting Started
+
+To run the application, simply run:
+```bash
+npm start
+```
+To run the tests, simply run:
+```bash
+npm test
+```

TypeScriptUnitTestsWithJest/jest.config.ts

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+import type { Config } from '@jest/types'
+
+const baseDir = '<rootDir>/src'
+const baseTestDir = '<rootDir>/src/tests'
+
+const config: Config.InitialOptions = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  verbose: true,
+  collectCoverage: true,
+  collectCoverageFrom: [
+    `${baseDir}/**/*.ts`
+  ]
+}
+
+export default config;