Adventures in .NET

Mastering Dotnet Testing: Using Verify to Minimize Assertions - .NET 192

Jul 2, 2024

Simon Cropp, an expert in snapshot testing and the tool Verify, joins the conversation to delve into the intricacies of .NET testing. He discusses how snapshot testing simplifies verification of serialized states and reduces test code significantly. The chat highlights Verify's flexibility for managing ordered and unordered collections, as well as its seamless handling of random data. Listeners can also catch tips on advanced snapshot management and hear about intriguing tech recommendations, including the upcoming Star Wars series, 'The Acolyte.'

01:00:56

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Simon Cropp

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Episode notes

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Quick takeaways

Snapshot testing with Verify significantly reduces assertion code, enabling more focus on data structure rather than exhaustive checks.

The integration of snapshot testing with CI/CD pipelines allows for efficient management of test results and streamlined approval processes.

Deep dives

Introduction to Snapshot Testing

Snapshot testing is a testing approach that enhances traditional assertion methods by using serialized representations of data. Rather than manually asserting each property of an object, snapshot testing allows developers to serialize an entire object when the test is first run. This serialized data is stored in a snapshot file, which can be committed to source control. On subsequent test runs, the serialized object is compared to the existing snapshot, simplifying the validation process and highlighting any differences through a comparison tool.

Intro

2min

Mastering Snapshot Testing in .NET

32min

Navigating Order in Collections with Verify

2min

Utilizing Snapshot Testing with Randomized Data

5min

Advanced Snapshot Management with Verify

15min

Weekly Picks and .NET Resources Discussion

4min

In this episode, they dive deep into the world of software development. Adam and Shawn are joined by special guest Simon Cropp. Together, they embark on a comprehensive discussion about snapshot testing in the dotnet ecosystem, with a specific focus on the powerful tool known as Verify. You'll learn about the different APIs for managing values, the advantages and drawbacks of using Verify, and its ability to reduce test code by up to 90%. The conversation explores how Verify handles data serialization, manipulates random characteristics, and integrates seamlessly with CI/CD pipelines.
Additionally, discover fascinating picks from our speakers, including a seasoned recommendation on fixing audio delays in MSTSC and an exciting preview of the new Star Wars series, "The Acolyte." Whether you're a seasoned developer or just curious about cutting-edge testing methodologies, this episode is packed with knowledge that promises to elevate your development skills. Stay tuned and join us as we unlock the potential of snapshot testing with Verify!

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