Fetch Nacos Config in Unit Test in .NET Core 6

Question

I'm trying to write a xUnit test for HomeController, and some important configuration information is put into Nacos.

The problem now is that I can't get the configuration information in nacos.

Here is my test class for HomeController:

using Xunit;

namespace ApiTestProject

    public class HomeControllerTest
    {

        // mock register services.  in this method, I can not access the nacos config strings
        private void Init()
        {
            var builder = WebApplication.CreateBuilder();

            // add appsettings.json and nacos
            builder.Host.ConfigureAppConfiguration(cbuilder =>
            {
                cbuilder.AddJsonFile("appsettings.Test.json", optional: false, reloadOnChange: true);
            });
            var nacosconfig = builder.Configuration.GetSection("NacosConfig");
            builder.Host.ConfigureAppConfiguration((context, builder) =>
            {
                // add nacos
                builder.AddNacosV2Configuration(nacosconfig);
            });



            // Now I should have been able to get the config info in builder.Configuration
            // try to get the "DbConn" in nacos, but connstr is null
            string connstr = builder.Configuration["DbConn"];

            // other register logic... 
        }
    }

And this is the appsettings.Test.json file:

{
  "NacosConfig": {
    "Listeners": [
      {
        "Optional": false,
        "DataId": "global.dbconn",
        "Group": "DEFAULT_GROUP"
      }
    ],
    "Namespace": "my-dev",
    "ServerAddresses": [
      "http://mynacos.url.address/"
    ],
    "UserName": "dotnetcore",
    "Password": "123456",
  }
}

Update: I've checked in detail to make sure there aren't any spelling mistakes, case sensitivity issues. And the code in Init() function works well in the Program.cs file in the tested API project, but in this xUnit project, it's not working at all.

Answer 1

Are you making sure that the appsettings.Test.json file is included in the output directory when you build?