Access appsettings from an abstract class used in my test scripts - json

Question

Working with asp.net core 2.0
I have created a BD test project.
I have an abstract base class structured like this:
[ExcludeFromCodeCoverage]
[Category("Integration")]
public abstract class BaseIntegrationContext : BaseIntegrationSetUp
{
protected MyDataBaseContext Context;
private IWebHostBuilder _webHostBuilder;
protected override void FixtureSetUp()
{
base.FixtureSetUp();
WebSetUp();
DbSetUp();
}
private void WebSetUp()
{
_webHostBuilder = new WebHostBuilder()
.UseStartup<Startup>();
}
private void DbSetUp()
{
base.FixtureSetUp();
//options
var config = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.Build();
var options = new DbContextOptionsBuilder<InformedWorkerDbContext>()
.UseSqlServer(config.GetConnectionString("DefaultConnection"))
.Options;
Context = new MyDataBaseContext(options);
}
}
unless I copy and add the appsettings.json to this test project I will obviously get the error that the json file cannot be found.
What is the accepted way to access appsettings.json from withing an abstract base class that use in a test project?
I have tried adding an entity model called ServiceSettings that maps to the json file in my web project:
public class ServiceSettings
{
public string DatabaseServerConnection { get; set; }
}
which i instantiate in startup.cs:
services.Configure<ServiceSettings>(Configuration.GetSection("ServiceSettings"));
My Json file looks like this:
{
"ServiceSettings": {
"DatabaseServerConnection": "Server=localhost;Initial,Catalog=InformedWorker;Integrated Security=True;MultipleActiveResultSets=true"
},
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Information"
},
"Console": {
"LogLevel": {
"Microsoft.AspNetCore.Mvc.Razor.Internal": "Warning",
"Microsoft.AspNetCore.Mvc.Razor.Razor": "Debug",
"Microsoft.AspNetCore.Mvc.Razor": "Error",
"Default": "Information"
}
}
}
}
and in my abstract class I do this:
IOptions<ServiceSettings> myOptions = Options.Create(new ServiceSettings()
{
});
but typing myOptions the intellisense only gives me 'Value' to work with..?

Answer 1

unless I copy and add the appsettings.json to this test project I will obviously get the error that the json file cannot be found.
This is cause you don't specify file location in
var config = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.Build();
.AddJsonFile registers a JSON FileProvider and path parameter ("appsettings.json" in your case) is a Path relative to the base path stored in ConfigurationBuilder.Properties. So the default base path is null and a file is expected in current working directory.
To set base path you may use .SetBasePath(<basePath>) extension method
public static IConfigurationBuilder SetBasePath(this IConfigurationBuilder builder, string basePath);
where basePath: The absolute path of file-based providers.