https://github.com/zakimohammed/ms-jest

JEST project for MS training.
https://github.com/zakimohammed/ms-jest

jest node-jest unit-testing

Last synced: 6 days ago
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JEST project for MS training.

• Host: GitHub
• URL: https://github.com/zakimohammed/ms-jest
• Owner: ZakiMohammed
• Created: 2024-10-24T03:00:15.000Z (13 days ago)
• Default Branch: main
• Last Pushed: 2024-10-24T03:06:00.000Z (13 days ago)
• Last Synced: 2024-10-24T20:05:54.801Z (13 days ago)
• Topics: jest, node-jest, unit-testing
• Language: JavaScript
• Homepage:
• Size: 34.2 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# JEST - Delightful JavaScript Test Framework

JEST project for MS training.

#### Topics Covered

- Initial Setup

- Test Specs and Suites

- Matchers

- Spying and Mocking

- Third-Party Packages

- Commands and Coverage

Checkout the trend: https://npmtrends.com/chai-vs-jasmine-vs-jest-vs-mocha-vs-sinon

Checkout the JEST: https://jestjs.io/

#### Install JEST

```

npm i jest

npm i @types/jest

```

#### Creating Script in package.json

```

"scripts": {

  "test": "jest",

}

```

#### Creating a Function

sum.js

```

const sum = (num1, num2) => num1 + num2

module.exports = sum

```

#### Writing Test Case

sum.test.js

```

const sum = require('./sum')

test('should add num 1 and num 2', () => {

    expect(sum(10, 20)).toBe(30)

})

```

#### Execute Test Cases

```

npm test

> [email protected] test

> jest

 PASS  basics/sum.test.js

  √ should add num 1 and num 2 (2 ms)

Test Suites: 1 passed, 1 total

Tests:       1 passed, 1 total

Snapshots:   0 total

Time:        0.666 s, estimated 1 s

Ran all test suites.

```

#### Extra Scripts

```

"scripts": {

	"test": "jest",

	"test:watch": "jest --watchAll",

	"test:verbose": "jest --verbose",

	"test:coverage": "jest --coverage",

	"test:all": "jest --watchAll --verbose --coverage",

}

```

#### Extra Executes

```

npm test

npm run test:watch

npm run test:verbose

npm run test:coverage

npm run test:all

```