A modern web application probably makes tens of network calls during a typical user flow.

A good end-to-end web test must observe and in some cases mock the network calls to make the test reliable, complete, and easy to debug. I will show some of my tips and tricks for using and controlling network API calls during tests. We will see how Cypress, Playwright, and Vitest implement network spies and stubs, and what we can achieve by writing just a little bit of custom code on top of existing features.

Les revues de code font partie des outils utilisés par les développeurs pour trouver les problèmes le plus tôt possible. Cependant, il est compliqué d’identifier ceux liés aux principes SOLID si on ne sait pas quoi regarder. Ainsi, plutôt que de vous proposer juste une définition des principes, je vous propose de vous montrer comment les reconnaître et les corriger si besoin.

A modern web application probably makes tens of network calls during a typical user flow.

A good end-to-end web test must observe and in some cases mock the network calls to make the test reliable, complete, and easy to debug. I will show some of my tips and tricks for using and controlling network API calls during tests. We will see how Cypress, Playwright, and Vitest implement network spies and stubs, and what we can achieve by writing just a little bit of custom code on top of existing features.