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87. Introduction to Snapshot testing and using Verify.Xunit

https://www.betabit.nl/en/betatalks Michiel and Oscar discuss snapshot testing, which is a type of data comparison test. Snapshot testing saves the output of a test and compares it to the output on subsequent runs to detect any changes. Michiel demonstrates how to write snapshot tests using Verify.Xunit library in C#. They show how snapshot testing can detect unintended changes or bugs introduced when code is modified. Their demo uses a simple employee mapper to map personal data to employee data. Bugs are intentionally introduced to demonstrate how snapshot testing fails when the output changes unexpectedly. Links for more information: https://github.com/VerifyTests/Verify Time stamps: 00:00 - Introduction and what is snapshot testing 02:05 - Simple demo setup 03:58 - Snapshot test code examples without Verify package 05:15 - Snapshot test code with Verify package 06:23 - Creating baseline comparison data by running test 09:00 - Introduce bug to demonstrate failure 13:28 - Extra settings for Verify package 17:21 - Closing remarks and outro Join us on our Discord channel:   / discord   There is more to come! https://www.betabit.nl/en