split event tests

src/Security/Authentication/test/OpenIdConnect/OpenIdConnectEventTests.cs

@@ -16,6 +16,7 @@
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Primitives;
+using Microsoft.IdentityModel.JsonWebTokens;
 using Microsoft.IdentityModel.Protocols.OpenIdConnect;
 using Microsoft.IdentityModel.Tokens;
 using Microsoft.Net.Http.Headers;
@@ -1286,6 +1287,7 @@ private TestServer CreateServer(OpenIdConnectEvents events, RequestDelegate appC
                         };
                         o.StateDataFormat = new TestStateDataFormat();
                         o.SecurityTokenValidator = new TestTokenValidator();
+                        o.UseTokenHandler = false;
                         o.ProtocolValidator = new TestProtocolValidator();
                         o.BackchannelHttpHandler = new TestBackchannel();
                     });