CheckTestOutput vs NSubstitute

CheckTestOutput

Semi-manual asserts for .NET unit tests (by exyi)

Testing

Source Code

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NSubstitute

A friendly substitute for .NET mocking libraries. (by nsubstitute)

Testing C# .NET dot-net testing-tools Test Mocking Mock dotnet-core Dotnetcore Mocks Stubs

Source Code

nsubstitute.github.io

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CheckTestOutput		NSubstitute
	Project
1	Mentions	11
0	Stars	2,550
-	Growth	1.5%
4.4	Activity	7.4
9 months ago	Latest Commit	1 day ago
C#	Language	C#
MIT License	License	GNU General Public License v3.0 or later

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

CheckTestOutput

Posts with mentions or reviews of CheckTestOutput. We have used some of these posts to build our list of alternatives and similar projects.

CheckTestOutput - Semi-manual assertions for unit tests.
1 project | /r/dotnet | 22 Feb 2021

NSubstitute

Posts with mentions or reviews of NSubstitute. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-08-09.

What am I missing about interfaces?
1 project | /r/csharp | 23 Nov 2023

a. you might do so purely out of argo cult, i.e. because someone told you this was the right thing to do™, and that's a silly exercise. b. you could also be doing this for a good reason: to use the interface with a mocking tool like NSubstitute
The Moq-gate: You Either Die a Hero...
3 projects | dev.to | 9 Aug 2023

When comparing it to one of its most well-known alternatives, NSubstitute, which has "only" reached 85.6 million downloads, it is fair to say that Moq is the most widely used mocking library in the .NET ecosystem.
Since v4.20, Moq is harvesting email addresses
6 projects | news.ycombinator.com | 8 Aug 2023

Maintainer rejected the PR. They have temporarily disabled the integration in https://github.com/moq/moq/pull/1375 but kept the SponsorLink project reference in the source code. It seems like their intent is to re-enable the integration at a later point :(
NSubstitute [0] might be an alternative. Or to fork Moq pre-4.20.
[0] https://nsubstitute.github.io/
Setting up a simple testing project with C#
7 projects | dev.to | 27 May 2023

In terms of mocking there are several frameworks you can use, but I've mainly relied on Moq and NSubstitute. Within this demo, I'm going to use NSubstitute as I've found it a little easier to use.
[AskJS] Can we talk about Stubs, Spies and Mocks in JavaScript and what a mess they are?
4 projects | /r/javascript | 30 Jan 2023
Coincidence? I think not
2 projects | /r/ProgrammerHumor | 17 Nov 2022

it will change the URL from https://github.com/nsubstitute/NSubstitute to https://github.dev/nsubstitute/NSubstitute (or you can just nav there yourself).
I need a C# crash course for experienced developers
6 projects | /r/learncsharp | 21 Oct 2022

NSubstitute
Moq vs NSubstitute: syntax cheat sheet
3 projects | dev.to | 20 Sep 2022

🔗 NSubstitute documentation | NSubstitute
My Top N Favorite Plugins and Tools for Developers
9 projects | dev.to | 23 May 2022

If you use NSubstitute (the best mocking .NET framework), then you have to install this small yet useful plugin right now. It kindly generates mocks and Arg.Is / Arg.Any.
Dot net libraries/tools that are usefull in many projects
7 projects | /r/dotnet | 3 Dec 2021

Another nice mocking framework is NSubstitute https://nsubstitute.github.io/

What are some alternatives?

When comparing CheckTestOutput and NSubstitute you can also consider the following projects:

Fine Code Coverage - Visualize unit test code coverage easily for free in Visual Studio Community Edition (and other editions too)

Moq - Repo for managing Moq 4.x [Moved to: https://github.com/moq/moq]

xUnit - xUnit.net is a free, open source, community-focused unit testing tool for .NET.

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.

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.

FakeItEasy - The easy mocking library for .NET

xBehave.net - ✖ An xUnit.net extension for describing each step in a test with natural language.

NUnit - NUnit Framework

NBomber - Modern and flexible load testing framework for Pull and Push scenarios, designed to test any system regardless a protocol (HTTP/WebSockets/AMQP etc) or a semantic model (Pull/Push).

Rhino Mocks

SpecFlow - #1 .NET BDD Framework. SpecFlow automates your testing & works with your existing code. Find Bugs before they happen. Behavior Driven Development helps developers, testers, and business representatives to get a better understanding of their collaboration

Bogus - :card_index: A simple fake data generator for C#, F#, and VB.NET. Based on and ported from the famed faker.js.