Recently I had a situation where I had a class and interface to make a generic service which would do something based on whatever type is provided. (Obviously, it was not so contrived…) These would then get injected to other classes to be used as necessary: Which works fine… as long as you remember to … [Read more…]
Autofac is a popular dependency injection library that I like to use because they’ve done a lot of legwork to get things to work nicely in .NET Core – (some DI frameworks were not happy with Microsoft’s decision to make a public abstraction for their own DI library). Modules If you have a big solution … [Read more…]
Regular expressions are notoriously difficult. But its just like programming. Any errors or bugs produced end up being the fault of the programmer. Good intentions give way to some small overlooked issue. via GIPHY Parsing HTML There are a lot of cool utilities for parsing HTML in C#. One of the most popular one is … [Read more…]
So I was writing an inline if statement the other day… you know the ones – booleanStatement ? resultIfTrue : resultIfFalse; It was pretty simple, so I didn’t think too much about it until I ran some unit tests…. via GIPHY Here’s what my code kind of looked like: So, what would you expect the … [Read more…]
Sometimes you just need some logging to do a sanity check that things are actually working the way that you’re expecting. via GIPHY Here’s how to turn logging on in ASP.NET Core 2 for SignalR: I’ve had to look this up more than twice, and its not exactly easy to find in the Microsoft docs, … [Read more…]
XUnit has some cool stuff like Theory, which lets you write multiple test cases to run against the same test code. This lets you test multiple paths with different inputs without having to write multiple tests. This can save you a lot of time as you can cover a lot of ground with a single … [Read more…]
Imagine that you have a NuGet package containing a bunch of static strings. These fields are intended to be used instead of magic strings, making it so anything that takes a dependency on this NuGet package will all be on the same page about these unique keys. Now suppose that these keys also represent the … [Read more…]
Last week I wrote about how to upload a file from a website using Angular and .NET Core. Writing tests for this is mostly straightforward, but there’s a few gotchas that I thought I would write down for the next time I need to do this. The front end tests are pretty trivial – you … [Read more…]
Uploading a file from a website is pretty simple, but I always have to look it up. There’s all sorts of different technologies and frameworks that work with the web, so I just thought I would write down how I got it to work so that next time I can just come back here and … [Read more…]
So there I was, minding my own business, again writing JavaScript tests… when suddenly I wanted to write a test to see what happens if NaN was supplied as a parameter. via GIPHY NaN Stands for “Not A Number”. You can get a NaN in a few different ways: But when checking for NaN, there’s … [Read more…]