Mock/Fake IConfiguration for Unit testing

This is a little sample application showing who to Fake application setting in a configuration object during unit testing.

by David Gallivan

Why

There are a lot of published ways to solve the issue of running unit test on class that inject an IConfiguration object holding application settings. This is a new way I came across recently and want to create a sample project showing how to use it.

Getting Started

1. Clone this repository

   git clone https://github.com/CodingWithDavid/MockIConfigurationForTesting
   cd MockIConfigurationForTesting

2. Open in Visual Studio or Visual Code a. With Visual Code you will need to install the C# extensions b. With Visual Code you will need to install the Blazor extensions

3. Press F5

What's in the App

1. Blazor application that I have refactored the WeatherForecastService to inject a configuration. This service has a new method on it that will retrieve the value of the app setting.
2. Unit test project with a test class for the Weather Forecast Service a. The test class shows how to use the new method for faking the IConfiguration object

Problems or Suggestions

Open an issue here

Thank You

Resources

• VS Code
• Visual Studio