Coding tests for the InvalidInput class (2): Building a microservices-based NodeJs and React app#018

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Hello everyone!

In this video, we complete writing the tests for the InvalidInput custom error class. We implement several ways of checking that the output of the error's methods is correctly formatted, and that its behavior is well tested.

This video is part of a series where we are developing a microservices-based social media application with the main focus on learning the microservices pattern. We are using NodeJS for our backend services, and React for our frontend client.

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