public void RegisterScopes_ScopesAreAdded()
        {
            // Arrange
            var services = CreateServices();
            var builder  = new OpenIddictBuilder(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);
        }