React Testing

End-to-End Testing

• test the system as a whole
• most useful because they test the system through the same interface as real users use
• challenge to configure
• slow process especially with large system; not good during development stage
• tests can be flaky - some test might pass one time and fail another even if the code did not change
• challenge is E2E test does not have access to database
  • solution is to create API endpoints to the backend for the test to empty the database

Cypress

• E2E testing library where test run completely within the browsers,
• easy to use
• Other libraries run the test in a Node-process, connected to the browser through an API
• Read Intro to Cypress Guide and understand it [Cypress Intro Takeaway Notes]
• best practices for selecting elements
• [When to Bypass UI]
• [Use Invoke to Trigger Inline Styles]

Jest

• [toContain Vs. toContainEqual]

React Testing Library

• [Debugging Tests]

Supertest

• [How to Make Authenticated Requests on Supertest]