snapshot-testing

Enable snapshot testing in .NET applications using the Verify library.

Updated Dec 4, 2022

Search Tags:#testing #ui #api #regression #.net #snapshot

Ready to run

npx skills add https://github.com/devingoble/CloudOStat --skill snapshot-testing-devingoble

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: snapshot-testing
Source: https://github.com/devingoble/CloudOStat/tree/main/.github/skills/snapshot-testing
Command: npx skills add https://github.com/devingoble/CloudOStat --skill snapshot-testing-devingoble

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill prevents unintended changes in your application's UI, API surfaces, and serialized data by comparing current output against human-approved baseline files.

Core Features & Use Cases

Snapshot Testing: Capture and verify outputs like rendered HTML, API responses, and object serializations.
Regression Detection: Automatically fail tests when unexpected changes occur, ensuring stability.
Use Case: When updating your application's user interface, use this Skill to ensure that no visual elements have been unintentionally altered, catching regressions before they reach production.

Quick Start

Use the snapshot-testing skill to verify the output of the VerifyUserDto function.

Frequently Asked Questions about snapshot-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How does snapshot testing detect UI and API regressions in .NET?▼

Snapshot testing detects regressions by comparing current application outputs against human-reviewed baseline files. It uses diffing mechanisms to automatically fail tests when unexpected changes occur in API responses or rendered HTML, ensuring stability before production.

How do I automate API surface verification using the Verify library?▼

You can automate API surface verification by using the Verify library to capture serialized outputs and HTTP responses. The skill compares these current outputs against approved baselines to detect unintended changes during test runs.

Can I use snapshot testing to validate rendered emails and serialized outputs?▼

Yes, snapshot testing can validate rendered emails and serialized outputs. The skill captures these outputs and compares them against human-approved baseline files to ensure no unintended alterations have occurred.

What is the best way to catch unintended visual changes when updating a user interface?▼

The best way to catch unintended visual changes is snapshot testing. It verifies rendered HTML output against a baseline file, automatically failing tests when unexpected visual regressions occur during UI updates.

Does snapshot testing for .NET require manual approval of baseline files?▼

Snapshot testing relies on human-reviewed baseline files. Once a baseline is approved, the skill automates subsequent test runs by diffing current outputs against these files, failing only when unexpected changes are detected.