openiddict-core/test/OpenIddict.Server.Tests/OpenIddictServerBuilderTests.cs

using System;
using System.Reflection;
using System.Threading.Tasks;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
using Microsoft.IdentityModel.Tokens;
using Moq;
using OpenIddict.Abstractions;
using Xunit;
using static OpenIddict.Abstractions.OpenIddictConstants;
using static OpenIddict.Server.OpenIddictServerEvents;
using SR = OpenIddict.Abstractions.OpenIddictResources;

namespace OpenIddict.Server.Tests
{
    public class OpenIddictServerBuilderTests
    {
        [Fact]
        public void Constructor_ThrowsAnExceptionForNullServices()
        {
            // Arrange
            var services = (IServiceCollection) null!;

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => new OpenIddictServerBuilder(services));

            Assert.Equal("services", exception.ParamName);
        }

        [Fact]
        public void AddEventHandler_ThrowsAnExceptionWhenConfigurationIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.AddEventHandler<BaseContext>(configuration: null!));
            Assert.Equal("configuration", exception.ParamName);
        }

        [Fact]
        public void AddEventHandler_ThrowsAnExceptionWhenDescriptorIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.AddEventHandler(descriptor: null!));
            Assert.Equal("descriptor", exception.ParamName);
        }

        [Fact]
        public void AddEventHandler_HandlerIsAttached()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AddEventHandler<CustomContext>(x =>
            {
                x.UseSingletonHandler<CustomHandler>();
            });

            // Assert
            Assert.Contains(services, service => service.ServiceType == typeof(CustomHandler));
        }

        [Fact]
        public void AddEventHandler_HandlerInstanceIsRegistered()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AddEventHandler<CustomContext>(x =>
            {
                x.UseSingletonHandler(new CustomHandler());
            });

            // Assert
            Assert.Contains(services, service =>
                service.ServiceType == typeof(CustomHandler) &&
                service.ImplementationInstance?.GetType() == typeof(CustomHandler) &&
                service.Lifetime == ServiceLifetime.Singleton);
        }

        [Fact]
        public void AddEventHandler_SingletonHandlerIsRegisteredAsASingleton()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AddEventHandler<CustomContext>(x =>
            {
                x.UseSingletonHandler<CustomHandler>();
            });

            // Assert
            Assert.Contains(services, service =>
                service.ServiceType == typeof(CustomHandler) &&
                service.Lifetime == ServiceLifetime.Singleton);
        }

        [Fact]
        public void AddEventHandler_ScopedHandlerIsRegisteredAsScoped()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AddEventHandler<CustomContext>(x =>
            {
                x.UseScopedHandler<CustomHandler>();
            });

            // Assert
            Assert.Contains(services, service =>
                service.ServiceType == typeof(CustomHandler) &&
                service.Lifetime == ServiceLifetime.Scoped);
        }

        [Fact]
        public void AddEncryptionCredentials_ThrowsExceptionWhenCredentialsAreNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.AddEncryptionCredentials(credentials: null!));
            Assert.Equal("credentials", exception.ParamName);
        }

        [Fact]
        public void AddEncryptionKey_ThrowsExceptionWhenKeyIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.AddEncryptionKey(key: null!));
            Assert.Equal("key", exception.ParamName);
        }

        [Fact]
        public void AddEncryptionKey_ThrowsExceptionWhenAsymmetricKeyPrivateKeyIsMissing()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);
            var key = Mock.Of<AsymmetricSecurityKey>(key => key.PrivateKeyStatus == PrivateKeyStatus.DoesNotExist);

            // Act and assert
            var exception = Assert.Throws<InvalidOperationException>(() => builder.AddEncryptionKey(key));
            Assert.Equal("The asymmetric encryption key doesn't contain the required private key.", exception.Message);
        }

        [Fact]
        public void AddEncryptionKey_EncryptingKeyIsCorrectlyAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            var key = Mock.Of<SecurityKey>(mock => mock.KeySize == 256 && mock.IsSupportedAlgorithm(SecurityAlgorithms.Aes256KW));

            // Act
            builder.AddEncryptionKey(key);

            var options = GetOptions(services);

            // Assert
            Assert.Same(key, options.EncryptionCredentials[0].Key);
        }

        [Fact]
        public void AddEncryptionKey_ThrowsExceptionWhenSymmetricKeyIsTooShort()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var key = Mock.Of<SecurityKey>(mock => mock.KeySize == 128 && mock.IsSupportedAlgorithm(SecurityAlgorithms.Aes256KW));
            var exception = Assert.Throws<InvalidOperationException>(() => builder.AddEncryptionKey(key));
            Assert.Equal(SR.FormatID0283(256, 128), exception.Message);
        }

        [Fact]
        public void AddEncryptionKey_ThrowsExceptionWhenSymmetricKeyIsTooLong()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var key = Mock.Of<SecurityKey>(mock => mock.KeySize == 384 && mock.IsSupportedAlgorithm(SecurityAlgorithms.Aes256KW));
            var exception = Assert.Throws<InvalidOperationException>(() => builder.AddEncryptionKey(key));
            Assert.Equal(SR.FormatID0283(256, 384), exception.Message);
        }

        [Fact]
        public void RemoveEventHandler_ThrowsAnExceptionWhenDescriptorIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.RemoveEventHandler(descriptor: null!));
            Assert.Equal("descriptor", exception.ParamName);
        }

        [Fact]
        public void RemoveEventHandler_RemovesService()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            OpenIddictServerHandlerDescriptor descriptor = OpenIddictServerHandlerDescriptor.CreateBuilder<CustomContext>().UseSingletonHandler<CustomHandler>().Build();
            builder.AddEventHandler(descriptor);

            // Act
            builder.RemoveEventHandler(descriptor);
            var options = GetOptions(services);

            // Assert
            Assert.DoesNotContain(services, x => x.ServiceType == descriptor.ServiceDescriptor.ServiceType);
            Assert.DoesNotContain(options.Handlers, x => x.ServiceDescriptor.ServiceType == descriptor.ServiceDescriptor.ServiceType);
        }

        [Fact]
        public void Configure_DelegateIsCorrectlyRegistered()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);
            var configuration = new Action<OpenIddictServerOptions>(options => { });

            // Act
            builder.Configure(configuration);

            // Assert
            Assert.Contains(services, service => service.ServiceType == typeof(IConfigureOptions<OpenIddictServerOptions>) &&
                service.ImplementationInstance is ConfigureNamedOptions<OpenIddictServerOptions> options &&
                options.Action == configuration && string.IsNullOrEmpty(options.Name));
        }

        [Fact]
        public void Configure_ThrowsAnExceptionWhenConfigurationIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.Configure(configuration: null!));
            Assert.Equal("configuration", exception.ParamName);
        }

        [Fact]
        public void AddDevelopmentSigningCertificate_ThrowsAnExceptionForNullSubject()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(delegate
            {
                builder.AddDevelopmentSigningCertificate(subject: null!);
            });

            Assert.Equal("subject", exception.ParamName);
        }

        [Fact]
        public void AddDevelopmentEncryptionCertificate_ThrowsAnExceptionForNullSubject()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.AddDevelopmentEncryptionCertificate(subject: null!));
            Assert.Equal("subject", exception.ParamName);
        }

#if SUPPORTS_CERTIFICATE_GENERATION
        [Fact]
        public void AddDevelopmentSigningCertificate_CanGenerateCertificate()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AddDevelopmentSigningCertificate();

            var options = GetOptions(services);

            // Assert
            Assert.Equal(1, options.SigningCredentials.Count);
            Assert.Equal(SecurityAlgorithms.RsaSha256, options.SigningCredentials[0].Algorithm);
            Assert.NotNull(options.SigningCredentials[0].Kid);
        }
#else
        [Fact]
        public void AddDevelopmentSigningCertificate_ThrowsAnExceptionOnUnsupportedPlatforms()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<PlatformNotSupportedException>(delegate
            {
                builder.AddDevelopmentSigningCertificate();
                return GetOptions(services);
            });

            Assert.Equal("X.509 certificate generation is not supported on this platform.", exception.Message);
        }
#endif

        [Fact]
        public void AddEphemeralSigningKey_SigningKeyIsCorrectlyAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AddEphemeralSigningKey();

            var options = GetOptions(services);

            // Assert
            Assert.Equal(1, options.SigningCredentials.Count);
        }

        [Theory]
        [InlineData(SecurityAlgorithms.RsaSha256)]
        [InlineData(SecurityAlgorithms.RsaSha384)]
        [InlineData(SecurityAlgorithms.RsaSha512)]
#if SUPPORTS_ECDSA
        [InlineData(SecurityAlgorithms.EcdsaSha256)]
        [InlineData(SecurityAlgorithms.EcdsaSha384)]
        [InlineData(SecurityAlgorithms.EcdsaSha512)]
#endif
        public void AddEphemeralSigningKey_SigningCredentialsUseSpecifiedAlgorithm(string algorithm)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AddEphemeralSigningKey(algorithm);

            var options = GetOptions(services);
            var credentials = options.SigningCredentials[0];

            // Assert
            Assert.Equal(algorithm, credentials.Algorithm);
        }

        [Fact]
        public void AddSigningKey_ThrowsExceptionWhenKeyIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.AddSigningKey(key: null!));
            Assert.Equal("key", exception.ParamName);
        }

        [Fact]
        public void AddSigningKey_ThrowsExceptionWhenAsymmetricKeyPrivateKeyIsMissing()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);
            var key = Mock.Of<AsymmetricSecurityKey>(key => key.PrivateKeyStatus == PrivateKeyStatus.DoesNotExist);

            // Act and assert
            var exception = Assert.Throws<InvalidOperationException>(() => builder.AddSigningKey(key));
            Assert.Equal("The asymmetric signing key doesn't contain the required private key.", exception.Message);
        }

        [Theory]
        [InlineData(SecurityAlgorithms.HmacSha256)]
        [InlineData(SecurityAlgorithms.RsaSha256)]
#if SUPPORTS_ECDSA
        [InlineData(SecurityAlgorithms.EcdsaSha256)]
        [InlineData(SecurityAlgorithms.EcdsaSha384)]
        [InlineData(SecurityAlgorithms.EcdsaSha512)]
#endif
        public void AddSigningKey_SigningKeyIsCorrectlyAdded(string algorithm)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            var key = Mock.Of<SecurityKey>(mock => mock.IsSupportedAlgorithm(algorithm));

            // Act
            builder.AddSigningKey(key);

            var options = GetOptions(services);

            // Assert
            Assert.Same(key, options.SigningCredentials[0].Key);
        }

        [Fact]
        public void AddSigningCertificate_SigningKeyIsCorrectlyAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AddSigningCertificate(
                assembly: typeof(OpenIddictServerBuilderTests).GetTypeInfo().Assembly,
                resource: "OpenIddict.Server.Tests.Certificate.pfx",
                password: "OpenIddict");

            var options = GetOptions(services);

            // Assert
            Assert.IsType<X509SecurityKey>(options.SigningCredentials[0].Key);
        }

        [Fact]
        public void AllowAuthorizationCodeFlow_CodeFlowIsAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AllowAuthorizationCodeFlow();

            var options = GetOptions(services);

            // Assert
            Assert.Contains(CodeChallengeMethods.Sha256, options.CodeChallengeMethods);

            Assert.Contains(GrantTypes.AuthorizationCode, options.GrantTypes);

            Assert.Contains(ResponseModes.FormPost, options.ResponseModes);
            Assert.Contains(ResponseModes.Fragment, options.ResponseModes);
            Assert.Contains(ResponseModes.Query, options.ResponseModes);

            Assert.Contains(ResponseTypes.Code, options.ResponseTypes);
        }

        [Fact]
        public void AllowClientCredentialsFlow_ClientCredentialsFlowIsAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AllowClientCredentialsFlow();

            var options = GetOptions(services);

            // Assert
            Assert.Contains(GrantTypes.ClientCredentials, options.GrantTypes);
        }

        [Theory]
        [InlineData(null)]
        [InlineData("")]
        public void AllowCustomFlow_ThrowsAnExceptionForType(string type)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.AllowCustomFlow(type));

            Assert.Equal("type", exception.ParamName);
            Assert.Contains("The grant type cannot be null or empty.", exception.Message);
        }

        [Fact]
        public void AllowCustomFlow_CustomFlowIsAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AllowCustomFlow("urn:ietf:params:oauth:grant-type:custom_grant");

            var options = GetOptions(services);

            // Assert
            Assert.Contains("urn:ietf:params:oauth:grant-type:custom_grant", options.GrantTypes);
        }

        [Fact]
        public void AddDeviceCodeFlow_DeviceFlowIsAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AllowDeviceCodeFlow();

            var options = GetOptions(services);

            // Assert
            Assert.Contains(GrantTypes.DeviceCode, options.GrantTypes);
        }

        [Fact]
        public void AllowHybridFlow_HybridFlowIsAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AllowHybridFlow();

            var options = GetOptions(services);

            // Assert
            Assert.Contains(CodeChallengeMethods.Sha256, options.CodeChallengeMethods);

            Assert.Contains(GrantTypes.AuthorizationCode, options.GrantTypes);
            Assert.Contains(GrantTypes.Implicit, options.GrantTypes);

            Assert.Contains(ResponseModes.FormPost, options.ResponseModes);
            Assert.Contains(ResponseModes.Fragment, options.ResponseModes);

            Assert.Contains(ResponseTypes.Code + ' ' + ResponseTypes.IdToken, options.ResponseTypes);
            Assert.Contains(ResponseTypes.Code + ' ' + ResponseTypes.IdToken + ' ' + ResponseTypes.Token, options.ResponseTypes);
            Assert.Contains(ResponseTypes.Code + ' ' + ResponseTypes.Token, options.ResponseTypes);
        }

        [Fact]
        public void AllowImplicitFlow_ImplicitFlowIsAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AllowImplicitFlow();

            var options = GetOptions(services);

            // Assert
            Assert.Contains(GrantTypes.Implicit, options.GrantTypes);

            Assert.Contains(ResponseModes.FormPost, options.ResponseModes);
            Assert.Contains(ResponseModes.Fragment, options.ResponseModes);

            Assert.Contains(ResponseTypes.IdToken, options.ResponseTypes);
            Assert.Contains(ResponseTypes.IdToken + ' ' + ResponseTypes.Token, options.ResponseTypes);
            Assert.Contains(ResponseTypes.Token, options.ResponseTypes);
        }

        [Fact]
        public void AllowPasswordFlow_PasswordFlowIsAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AllowPasswordFlow();

            var options = GetOptions(services);

            // Assert
            Assert.Contains(GrantTypes.Password, options.GrantTypes);
        }

        [Fact]
        public void AllowRefreshTokenFlow_RefreshTokenFlowIsAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AllowRefreshTokenFlow();

            var options = GetOptions(services);

            // Assert
            Assert.Contains(GrantTypes.RefreshToken, options.GrantTypes);
        }

        [Fact]
        public void DisableAccessTokenEncryption_AccessTokenEncryptionIsDisabled()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.DisableAccessTokenEncryption();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.DisableAccessTokenEncryption);
        }

        [Fact]
        public void DisableAuthorizationStorage_AuthorizationStorageIsDisabled()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.DisableAuthorizationStorage();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.DisableAuthorizationStorage);
        }

        [Fact]
        public void DisableRollingRefreshTokens_RollingRefreshTokensAreDisabled()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.DisableRollingRefreshTokens();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.DisableRollingRefreshTokens);
        }

        [Fact]
        public void DisableScopeValidation_ScopeValidationIsDisabled()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.DisableScopeValidation();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.DisableScopeValidation);
        }

        [Fact]
        public void DisableSlidingRefreshTokenExpiration_SlidingExpirationIsDisabled()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.DisableSlidingRefreshTokenExpiration();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.DisableSlidingRefreshTokenExpiration);
        }

        [Fact]
        public void DisableTokenStorage_TokenStorageIsDisabled()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.DisableTokenStorage();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.DisableTokenStorage);
        }

        [Fact]
        public void RequireProofKeyForCodeExchange_PkceIsEnforced()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.RequireProofKeyForCodeExchange();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.RequireProofKeyForCodeExchange);
        }

        [Fact]
        public void SetAuthorizationEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetAuthorizationEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetAuthorizationEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetAuthorizationEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetAuthorizationEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetAuthorizationEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetAuthorizationEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetAuthorizationEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetAuthorizationEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetAuthorizationEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.AuthorizationEndpointUris);
        }

        [Fact]
        public void SetAuthorizationEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetAuthorizationEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.AuthorizationEndpointUris);
        }

        [Fact]
        public void SetConfigurationEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetConfigurationEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetConfigurationEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetConfigurationEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetConfigurationEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetConfigurationEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetConfigurationEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetConfigurationEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetConfigurationEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetConfigurationEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.ConfigurationEndpointUris);
        }

        [Fact]
        public void SetConfigurationEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetConfigurationEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.ConfigurationEndpointUris);
        }

        [Fact]
        public void SetCryptographyEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetCryptographyEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetCryptographyEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetCryptographyEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetCryptographyEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetCryptographyEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetCryptographyEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetCryptographyEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetCryptographyEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetCryptographyEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.CryptographyEndpointUris);
        }

        [Fact]
        public void SetCryptographyEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetCryptographyEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.CryptographyEndpointUris);
        }

        [Fact]
        public void SetDeviceEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetDeviceEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetDeviceEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetDeviceEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetDeviceEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetDeviceEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetDeviceEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetDeviceEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetDeviceEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetDeviceEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.DeviceEndpointUris);
        }

        [Fact]
        public void SetDeviceEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetDeviceEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.DeviceEndpointUris);
        }

        [Fact]
        public void SetIntrospectionEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetIntrospectionEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetIntrospectionEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetIntrospectionEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetIntrospectionEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetIntrospectionEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetIntrospectionEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetIntrospectionEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetIntrospectionEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetIntrospectionEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.IntrospectionEndpointUris);
        }

        [Fact]
        public void SetIntrospectionEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetIntrospectionEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.IntrospectionEndpointUris);
        }

        [Fact]
        public void SetLogoutEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetLogoutEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetLogoutEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetLogoutEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetLogoutEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetLogoutEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetLogoutEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetLogoutEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetLogoutEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetLogoutEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.LogoutEndpointUris);
        }

        [Fact]
        public void SetLogoutEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetLogoutEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.LogoutEndpointUris);
        }

        [Fact]
        public void SetRevocationEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetRevocationEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetRevocationEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetRevocationEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetRevocationEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetRevocationEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetRevocationEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetRevocationEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetRevocationEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetRevocationEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.RevocationEndpointUris);
        }

        [Fact]
        public void SetRevocationEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetRevocationEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.RevocationEndpointUris);
        }

        [Fact]
        public void SetTokenEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetTokenEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetTokenEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetTokenEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetTokenEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetTokenEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetTokenEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetTokenEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetTokenEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetTokenEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.TokenEndpointUris);
        }

        [Fact]
        public void SetTokenEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetTokenEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.TokenEndpointUris);
        }

        [Fact]
        public void SetUserinfoEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetUserinfoEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetUserinfoEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetUserinfoEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetUserinfoEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetUserinfoEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetUserinfoEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetUserinfoEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetUserinfoEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetUserinfoEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.UserinfoEndpointUris);
        }

        [Fact]
        public void SetUserinfoEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetUserinfoEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.UserinfoEndpointUris);
        }

        [Fact]
        public void SetVerificationEndpointUris_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetVerificationEndpointUris(addresses: (null as Uri[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Fact]
        public void SetVerificationEndpointUris_Strings_ThrowsExceptionWhenAddressesIsNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetVerificationEndpointUris(addresses: (null as string[])!));
            Assert.Equal("addresses", exception.ParamName);
        }

        [Theory]
        [InlineData(@"C:\")]
        public void SetVerificationEndpointUris_ThrowsExceptionForMalformedUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetVerificationEndpointUris(new Uri(uri)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.GetResourceString(SR.ID0072), exception.Message);
        }

        [Theory]
        [InlineData("~/path")]
        public void SetVerificationEndpointUris_ThrowsExceptionForInvalidRelativeUri(string uri)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.SetVerificationEndpointUris(new Uri(uri, UriKind.RelativeOrAbsolute)));
            Assert.Equal("addresses", exception.ParamName);
            Assert.Contains(SR.FormatID0081("~"), exception.Message);
        }

        [Fact]
        public void SetVerificationEndpointUris_ClearsUris()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetVerificationEndpointUris(Array.Empty<Uri>());

            var options = GetOptions(services);

            // Assert
            Assert.Empty(options.VerificationEndpointUris);
        }

        [Fact]
        public void SetVerificationEndpointUris_AddsUri()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetVerificationEndpointUris("http://localhost/endpoint-path");

            var options = GetOptions(services);

            // Assert
            Assert.Contains(new Uri("http://localhost/endpoint-path"), options.VerificationEndpointUris);
        }

        [Fact]
        public void AcceptAnonymousClients_ClientIdentificationIsOptional()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.AcceptAnonymousClients();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.AcceptAnonymousClients);
        }

        [Fact]
        public void SetAccessTokenLifetime_DefaultAccessTokenLifetimeIsReplaced()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetAccessTokenLifetime(TimeSpan.FromMinutes(42));

            var options = GetOptions(services);

            // Assert
            Assert.Equal(TimeSpan.FromMinutes(42), options.AccessTokenLifetime);
        }

        [Fact]
        public void SetAccessTokenLifetime_AccessTokenLifetimeCanBeSetToNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetAccessTokenLifetime(null);

            var options = GetOptions(services);

            // Assert
            Assert.Null(options.AccessTokenLifetime);
        }

        [Fact]
        public void SetAuthorizationCodeLifetime_DefaultAuthorizationCodeLifetimeIsReplaced()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetAuthorizationCodeLifetime(TimeSpan.FromMinutes(42));

            var options = GetOptions(services);

            // Assert
            Assert.Equal(TimeSpan.FromMinutes(42), options.AuthorizationCodeLifetime);
        }

        [Fact]
        public void SetAuthorizationCodeLifetime_AuthorizationCodeLifetimeCanBeSetToNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetAuthorizationCodeLifetime(null);

            var options = GetOptions(services);

            // Assert
            Assert.Null(options.AuthorizationCodeLifetime);
        }

        [Fact]
        public void SetIdentityTokenLifetime_DefaultIdentityTokenLifetimeIsReplaced()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetIdentityTokenLifetime(TimeSpan.FromMinutes(42));

            var options = GetOptions(services);

            // Assert
            Assert.Equal(TimeSpan.FromMinutes(42), options.IdentityTokenLifetime);
        }

        [Fact]
        public void SetIdentityTokenLifetime_IdentityTokenLifetimeCanBeSetToNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetIdentityTokenLifetime(null);

            var options = GetOptions(services);

            // Assert
            Assert.Null(options.IdentityTokenLifetime);
        }

        [Fact]
        public void SetDeviceCodeLifetimeLifetime_DefaultDeviceCodeLifetimeIsReplaced()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetDeviceCodeLifetime(TimeSpan.FromMinutes(42));

            var options = GetOptions(services);

            // Assert
            Assert.Equal(TimeSpan.FromMinutes(42), options.DeviceCodeLifetime);
        }

        [Fact]
        public void SetDeviceCodeLifetimeLifetime_DeviceCodeLifetimeCanBeSetToNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetDeviceCodeLifetime(null);

            var options = GetOptions(services);

            // Assert
            Assert.Null(options.DeviceCodeLifetime);
        }

        [Fact]
        public void SetUserCodeLifetime_DefaultUserCodeLifetimeIsReplaced()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetUserCodeLifetime(TimeSpan.FromMinutes(42));

            var options = GetOptions(services);

            // Assert
            Assert.Equal(TimeSpan.FromMinutes(42), options.UserCodeLifetime);
        }

        [Fact]
        public void SetUserCodeLifetime_UserLifetimeCanBeSetToNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetUserCodeLifetime(null);

            var options = GetOptions(services);

            // Assert
            Assert.Null(options.UserCodeLifetime);
        }

        [Fact]
        public void SetRefreshTokenLifetime_DefaultRefreshTokenLifetimeIsReplaced()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetRefreshTokenLifetime(TimeSpan.FromMinutes(42));

            var options = GetOptions(services);

            // Assert
            Assert.Equal(TimeSpan.FromMinutes(42), options.RefreshTokenLifetime);
        }

        [Fact]
        public void SetRefreshTokenLifetime_RefreshTokenLifetimeCanBeSetToNull()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetRefreshTokenLifetime(null);

            var options = GetOptions(services);

            // Assert
            Assert.Null(options.RefreshTokenLifetime);
        }

        [Fact]
        public void SetIssuer_ThrowsAnExceptionForNullIssuer()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.SetIssuer(null!));

            Assert.Equal("address", exception.ParamName);
        }

        [Fact]
        public void SetIssuer_AddressIsReplaced()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.SetIssuer(new Uri("http://www.fabrikam.com/"));

            var options = GetOptions(services);

            // Assert
            Assert.Equal(new Uri("http://www.fabrikam.com/"), options.Issuer);
        }

        [Fact]
        public void RegisterClaims_ClaimsAreAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.RegisterClaims("custom_claim_1", "custom_claim_2");

            var options = GetOptions(services);

            // Assert
            Assert.Contains("custom_claim_1", options.Claims);
            Assert.Contains("custom_claim_2", options.Claims);
        }

        [Fact]
        public void RegisterClaims_ThrowsAnExceptionForNullClaims()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.RegisterClaims(claims: null!));
            Assert.Equal("claims", exception.ParamName);
        }

        [Theory]
        [InlineData(null)]
        [InlineData("")]
        public void RegisterClaims_ThrowsAnExceptionForClaim(string claim)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);
            string[] claims = { claim };

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.RegisterClaims(claims));

            Assert.Equal("claims", exception.ParamName);
            Assert.Contains("Claims cannot be null or empty.", exception.Message);
        }

        [Fact]
        public void RegisterScopes_ScopesAreAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.RegisterScopes("custom_scope_1", "custom_scope_2");

            var options = GetOptions(services);

            // Assert
            Assert.Contains("custom_scope_1", options.Scopes);
            Assert.Contains("custom_scope_2", options.Scopes);
        }

        [Fact]
        public void RegisterScopes_ThrowsAnExceptionForNullScopes()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act and assert
            var exception = Assert.Throws<ArgumentNullException>(() => builder.RegisterScopes(scopes: null!));
            Assert.Equal("scopes", exception.ParamName);
        }

        [Theory]
        [InlineData(null)]
        [InlineData("")]
        public void RegisterScopes_ThrowsAnExceptionForScope(string scope)
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);
            string[] scopes = { scope };

            // Act and assert
            var exception = Assert.Throws<ArgumentException>(() => builder.RegisterScopes(scopes));

            Assert.Equal("scopes", exception.ParamName);
            Assert.Contains("Scopes cannot be null or empty.", exception.Message);
        }

        [Fact]
        public void UseReferenceAccessTokens_ReferenceAccessTokensAreEnabled()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.UseReferenceAccessTokens();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.UseReferenceAccessTokens);
        }

        [Fact]
        public void UseReferenceRefreshTokens_ReferenceRefreshTokensAreEnabled()
        {
            // Arrange
            var services = CreateServices();
            var builder = CreateBuilder(services);

            // Act
            builder.UseReferenceRefreshTokens();

            var options = GetOptions(services);

            // Assert
            Assert.True(options.UseReferenceRefreshTokens);
        }

        private static IServiceCollection CreateServices()
        {
            return new ServiceCollection().AddOptions();
        }

        private static OpenIddictServerBuilder CreateBuilder(IServiceCollection services)
            => new OpenIddictServerBuilder(services);

        private static OpenIddictServerOptions GetOptions(IServiceCollection services)
        {
            var provider = services.BuildServiceProvider();

            var options = provider.GetRequiredService<IOptions<OpenIddictServerOptions>>();
            //return options.Get(OpenIddictServerDefaults.AuthenticationScheme);
            return options.Value;
        }

        private class CustomContext : BaseContext
        {
            /// <summary>
            /// Creates a new instance of the <see cref="BaseContext"/> class.
            /// </summary>
            public CustomContext(OpenIddictServerTransaction transaction) : base(transaction) { }
        }

        private class CustomHandler : IOpenIddictServerHandler<CustomContext>
        {
            public ValueTask HandleAsync(CustomContext context) => default;
        }
    }
}