Testing

• The Power of Mocking in Unit Tests
• Unit Test Success using Ports, Adapters, and Simulators | Microsoft Learn

Test Cases

• minimaxir/big-list-of-naughty-strings: The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.

Behavior Driven Development

• Cucumber is a tool that supports Behaviour-Driven Development (BDD). As a story writer you can write some plain-language structured definitions and then associate them with individual assertion functions. It makes sense if you read the 10-minute tutorial for Cucumber.

Jest

Jest for Typescript based unit tests.

• The only 3 steps you need to mock an API call in Jest - DEV Community
• Mock Functions · Jest

• supertest - npm
• The only 3 steps you need to mock an API call in Jest - DEV Community
• Mock Functions · Jest
• reactjs - Property 'mockResolvedValue' does not exist on type '<T = any, R = AxiosResponse<T>> - Stack Overflow
• reactjs - Why am I getting: TypeError: axios.default.get.mockResolvedValue is not a function - Stack Overflow
• Mocking axios in Jest tests with Typescript | C.S. Rhymes
• javascript - Jest mocking: TypeError: axios.get.mockResolvedValue is not a function - Stack Overflow
• javascript - Mock Axios to test .catch() - Stack Overflow
• Mock Functions · Jest
• javascript - How to test the type of a thrown exception in Jest - Stack Overflow

Safetest

• kolodny/safetest is a powerful UI testing library that combines Playwright, Jest/Vitest, and React for a powerful end-to-end testing solution for applications and component testing

Async and Jest

• Async and Jest — Lessons Learned. or Did you forget to wait for something… | by Di.rk | Medium

Snapshot Testing

• https://jestjs.io/docs/snapshot-testing
• Ignore snapshots https://stackoverflow.com/questions/58015748/how-ignore-snapshot-generated-by-jest-on-jests-coverage

Single Test Run

Use test.only function or npm run test -- regex/to/this.test More info found at https://geshan.com.np/blog/2022/07/jest-run-single-test/

Useful Commands

npm run clear-jest

Jest

• Jest - Delightful JavaScript Testing

ab

sudo yum install httpd-tools
ab -n 100 -c 100 -p testquery.json -T "application/json" -H 'x-api-key: foo' https://testsite/

Testing with curl swapping hostnames

curl -v -H "Host:www.foo.com" "http://123.45.67.89/"

curl -v -H "Hostname: www.foo.com" https://123.45.67.89/test

curl -v --connect-to 123.45.67.89:443 https://www.foo.com/test