Integration testing with in-memory IdentityServer

Question

I have an API that uses IdentityServer4 for token validation. I want to unit test this API with an in-memory TestServer. I\'d like to host the IdentityServer in the in-memor

Answer 1

Test API startup:

public class Startup
{
    public static HttpMessageHandler BackChannelHandler { get; set; }

    public void Configuration(IAppBuilder app)
    {
        //accept access tokens from identityserver and require a scope of 'Test'
        app.UseIdentityServerBearerTokenAuthentication(new IdentityServerBearerTokenAuthenticationOptions
        {
            Authority = "https://localhost",
            BackchannelHttpHandler = BackChannelHandler,
            ...
        });

        ...
    }
}

Assigning the AuthServer.Handler to TestApi BackChannelHandler in my unit test project:

    protected TestServer AuthServer { get; set; }
    protected TestServer MockApiServer { get; set; }
    protected TestServer TestApiServer { get; set; }

    [OneTimeSetUp]
    public void Setup()
    {
        ...
        AuthServer = TestServer.Create();
        TestApi.Startup.BackChannelHandler = AuthServer.CreateHandler();
        TestApiServer = TestServer.Create();
    }