This post is part 1 of a 3-part series: Part 1: How to test a database in C# with TestContainers Part 2: Resetting your test database in C# with Respawn Part 3: Creating a clean test suite for C# integration tests The problem Whether you’re using EF Core, Dappr, or something else, you probably want […]
Part 1: How to test a database in C# with TestContainers Read More »
If you’ve used AutoFixture with Entity Framework before, chances are you’ve encountered an error like this: AutoFixture.ObjectCreationExceptionWithPath : AutoFixture was unable to create an instance of type AutoFixture.Kernel.SeededRequest because the traversed object graph contains a circular reference. Or maybe this: Microsoft.EntityFrameworkCore.DbUpdateException : An error occurred while saving the entity changes. See the inner exception for
Using AutoFixture with EF Core without circular references Read More »
I was recently writing some tests that had a mocked method that I wanted to return the same value several times in a row from. It turns out, NSubstitute can do this out of the box. While Returns takes a value T, if you look at its method signature, you’ll see it takes another argument
How to return a value several times in a row using NSubstitute Read More »
Here are the slides for my talk for the Kansas City Microsoft Azure Meetup on Nov 8, 2023:
Azure Cognitive Search Overview – Kansas City Microsoft Azure Meetup Read More »
If you’ve ever made a test in xUnit with something like 8+ InlineDatas and thought that there has to be a better way… Well, there is! The Xunit.Combinatorial package by Andrew Arnott allows you to specify values in multiple CombinatorialValues attributes, then will run a separate test for each possible combination of those values. It’s
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Here are the slides for my talk for DevOps Days Indianapolis 2023:
Here is the video, slides and Github repository for my talk for JetBrains .NET Day Online ’23. Video Github repository https://github.com/danielwarddev/DotNetDays2023Bookstore Slides
JetBrains .NET Day Online ’23 – xUnit Expanded: Better Testing with xUnit Read More »
There is a Moq counterpart to this post: Using Moq to verify that an object or list was passed to a method. Click there if you would like to see how to do this using Moq. Overview Sometimes, when using Arg.Is(), we would like the argument to look like a certain object, or worse, a list
How to easily match on object or list arguments with NSubstitute Read More »
There is a Moq counterpart to this post: How to mock HttpClient in C# using Moq. Click there if you would like to see how to do this using Moq. This post will cover 3 different ways to mock HttpClient using NSubstitute and give pros and cons for each: Create a fake HttpMessageHandler class Set
How to mock HttpClient in C# using NSubstitute 3 ways Read More »
I recently attended DevOps Days Austin (which was fantastic and I highly recommend it) and gave an ignite talk there. A recurring activity in DevOpsDays conferences is something called open table or open space, where anyone from the conference can come up to some kind of whiteboard, wall of sticky notes, spreadsheet, etc. and write down
How to get ideas for conference talks and get them accepted Read More »