Why can't my .net core xunit test find my appsettings.json?

Question

I am new to testing/development. I have created a x unit test project in .net core for testing the UI of my website using selenium. My file structure looks like this

This is my appsettings.json:

{ "Base_Url": "https://pretendurl/", "AllowedHosts": "*" }

This is my test class:

using Xunit; using OpenQA.Selenium; using OpenQA.Selenium.Chrome; using OpenQA.Selenium.Support.UI; using System; using Microsoft.Extensions.Configuration; using System.Configuration; namespace XUnitTestProject1.UI.Tests { public class HomePageShould { [Fact] public void LoadHomepage() { using IWebDriver driver = new ChromeDriver(); var settings = new ConfigurationBuilder() .AddJsonFile("appsettings.json") .Build(); var homeUrl = settings["Base_Url"]; driver.Navigate().GoToUrl(homeUrl); } } }

I get this error: The configuration file 'appsettings.json' was not found and is not optional. My test project is in a separate repo from the system I am testing.

Adi Šoše · Accepted Answer · 2021-03-26 17:23:24Z

You need to update the XUnitTestProject1.UI.Tests.csproj to export your appsettings to the build folder.

 <ItemGroup> <None Update="appsettings.Test.json" CopyToOutputDirectory="PreserveNewest" /> </ItemGroup>

You should reate a separate appsettings.Test.json file in your test project with your test settings, and the code above will copy it to the build folder.

Steve Harris · Accepted Answer · 2021-03-26 17:22:56Z

Change the 'Copy to output folder' property of the json file in VS. It needs to be copied to the output folder where the app will run.

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