Testing an Express Application: Part II

The video tutorial covers testing Express endpoints using Jest and Supertest. It begins with an introduction to testing methodologies, followed by instructions on installing and using Supertest. The tutorial then explains how to refactor an Express application to facilitate testing without starting the server. It demonstrates creating test cases with Supertest and managing test data to ensure a clean testing environment. The video emphasizes the importance of maintaining separate databases for development and testing to avoid conflicts.

What are the two ways mentioned to test express endpoints?

What is the purpose of the supertest library?

How do you set up an express application for testing with supertest?

What is the significance of not calling app.listen when using supertest?

What steps are involved in installing supertest in a project?

What is the structure of a test case for signing up a new user?

What is the expected outcome when a user is successfully created in the test database?

What challenges arise when running tests that interact with a database?

How can you ensure that your test database is clean before running tests?

What lifecycle functions does Jest provide for setting up tests?