InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →
Top 22 C# Tdd Projects
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Entitas
Entitas is a super fast Entity Component System (ECS) Framework specifically made for C# and Unity
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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clean-architecture-manga
:cyclone: Clean Architecture with .NET6, C#10 and React+Redux. Use cases as central organizing structure, completely testable, decoupled from frameworks
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Fluent Assertions
A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.
The new commercial license costs $129.95 per developer per year. This pricing structure impacts organizations, especially those with larger development teams or multiple projects utilizing Fluent Assertions.
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AutoFixture
AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.
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System.IO.Abstractions
Just like System.Web.Abstractions, but for System.IO. Yay for testable IO access!
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WireMock.Net
WireMock.Net is a flexible product for stubbing and mocking web HTTP responses using advanced request matching and response templating. Based on the functionality from http://WireMock.org, but extended with more functionality.
Project mention: Integration Testing in .NET: A Practical Guide to Tools and Techniques | dev.to | 2024-09-07When we need to mock external APIs, WireMock.Net is a powerful tool that allows us to simulate HTTP interactions.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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MSTest
This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework. (by microsoft)
This is by far the easiest and most straight forward way to contribute to an open-source project. If you have worked with an open-source Library, framework, or extension, making contributions will be easier as you are already familiar with what that project is about. Two popular examples are Entity Framework Core and MSTest
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TaskoMask
Task management system based on .NET 8 with Microservices, DDD, CQRS, Event Sourcing and Testing Concepts
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List-of-Testing-Tools-and-Frameworks-for-.NET
✅ List of Automated Testing (TDD/BDD/ATDD/SBE) Tools and Frameworks for .NET
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cqrs-clean-eventual-consistency
CQRS, using Clean Architecture, multiple databases and Eventual Consistency
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FluentMediator
:twisted_rightwards_arrows: FluentMediator is an unobtrusive library that allows developers to build custom pipelines for Commands, Queries and Events.
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graphql-to-karate
Automagically generate Karate API tests from your GraphQL schemas. Useful for test-driven development, change validation in CI/CD, and more.
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You can find test results on GitHub Actions.
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cell-cms
CMS leve, self-contained e prático de utilizar! Feito por desenvolvedores e para desenvolvedores!
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C# Tdd discussion
C# Tdd related posts
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FluentAssertions No Longer OSS
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fluentassertions – Update Ownership and License
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Fluent assertion sneakily changed from Apache 2.0 to Source-Available
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Entitas VS Friflo.Json.Fliox - a user suggested alternative
2 projects | 30 Jan 2024 -
CI/CD Pipeline Using GitHub Actions: Automate Software Delivery
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Fluent Assertions: Fluently Assert the Result of .NET Tests
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Please recommend a good API Mocking tool
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A note from our sponsor - InfluxDB
www.influxdata.com | 15 May 2025
Index
What are some of the best open-source Tdd projects in C#? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Entitas | 7,329 |
| 2 | clean-architecture-manga | 4,115 |
| 3 | Fluent Assertions | 3,809 |
| 4 | AutoFixture | 3,447 |
| 5 | NUnit | 2,574 |
| 6 | System.IO.Abstractions | 1,564 |
| 7 | WireMock.Net | 1,551 |
| 8 | MSTest | 867 |
| 9 | MockQueryable | 819 |
| 10 | TaskoMask | 700 |
| 11 | List-of-Testing-Tools-and-Frameworks-for-.NET | 569 |
| 12 | cqrs-clean-eventual-consistency | 481 |
| 13 | LightBDD | 398 |
| 14 | NSpec | 260 |
| 15 | nunit3-vs-adapter | 208 |
| 16 | FluentMediator | 194 |
| 17 | BDTest | 85 |
| 18 | graphql-to-karate | 14 |
| 19 | Bubbles | 8 |
| 20 | DBConfirm | 7 |
| 21 | tdd | 6 |
| 22 | cell-cms | 2 |
Sponsored
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com