A curated collection of publicly available resources on how software companies around the world test their software systems and build their quality culture. 

Welcome to the inaugural post in this “30 Days of TDD” series. If you’ve never done Test Driven Development or aren’t even sure what this "crazy TDD stuff” is all about than this is the series for you 

MockHttp is a testing layer for Microsoft's HttpClient library. It allows stubbed responses to be configured for matched HTTP requests and can be used to test your application's service layer. 

var mockHttp = new MockHttpMessageHandler();

// Setup a respond for the user api (including a wildcard in the URL)
mockHttp.When("http://localhost/api/user/*")
        .Respond("application/json", "{'name' : 'Test McGee'}"); // Respond with JSON

// Inject the handler or client into your application code
var client = mockHttp.ToHttpClient();

var response = await client.GetAsync("http://localhost/api/user/1234");
// or without async: var response = client.GetAsync("http://localhost/api/user/1234").Result;

var json = await response.Content.ReadAsStringAsync();

// No network connection required
Console.Write(json); // {'name' : 'Test McGee'}

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Install-Package Mongo2Go

using (var runner = MongoDbRunner.Start())
{
   var client = new MongoClient(runner.ConnectionString);
   var database = client.GetDatabase("IntegrationTest");
   var collection = database.GetCollection<TestDocument>("TestCollection");
   //Just use it!
}

SqlInMemory is a library for creating SqlServer database on Memory instead of hard disk, at last Drops and Disposes database when you're done with it.

 This is useful for Integration Testing. 

MyTested.AspNetCore.Mvc is a strongly-typed unit testing library providing an easy fluent interface to test the ASP.NET Core MVC framework. It is testing framework agnostic so that you can combine it with a test runner of your choice (e.g. xUnit, NUnit, etc.). 

Unit Tests, How to Write Testable Code and Why it Matters 

Comprehensive and exhaustive JavaScript & Node.js testing best practices (August 2019)