In Node.js, a test pyramid is a figure which explains the proportion of unit tests, integrations tests, and end-to-end tests are required for the fruitful development of a project. The components of a test pyramid are given below:
Unit Tests : They test the individual units of code in isolation. They are fast and you might perform a lot of these tests
Integrations Tests : They test the integration among dissimilar units.
End-to-End (E2E) Tests : They test the system as a whole, right from the User Interface to the data store, and back.