// Tests for ClientKind enum and IsInternal() extension method.
// Go reference: client.go:45-65 (client kind constants and isInternal check)

using NATS.Server;
using Shouldly;

namespace NATS.Server.Core.Tests;

public class ClientKindTests
{
    [Fact]
    public void Client_is_not_internal() =>
        ClientKind.Client.IsInternal().ShouldBeFalse();

    [Fact]
    public void Router_is_not_internal() =>
        ClientKind.Router.IsInternal().ShouldBeFalse();

    [Fact]
    public void Gateway_is_not_internal() =>
        ClientKind.Gateway.IsInternal().ShouldBeFalse();

    [Fact]
    public void Leaf_is_not_internal() =>
        ClientKind.Leaf.IsInternal().ShouldBeFalse();

    [Fact]
    public void System_is_internal() =>
        ClientKind.System.IsInternal().ShouldBeTrue();

    [Fact]
    public void JetStream_is_internal() =>
        ClientKind.JetStream.IsInternal().ShouldBeTrue();

    [Fact]
    public void Account_is_internal() =>
        ClientKind.Account.IsInternal().ShouldBeTrue();

    [Fact]
    public void All_kinds_defined() =>
        Enum.GetValues<ClientKind>().Length.ShouldBe(7);

    [Fact]
    public void Internal_kinds_count_is_three() =>
        Enum.GetValues<ClientKind>().Count(k => k.IsInternal()).ShouldBe(3);

    [Fact]
    public void External_kinds_count_is_four() =>
        Enum.GetValues<ClientKind>().Count(k => !k.IsInternal()).ShouldBe(4);
}