SIG-CM2.0/tests/SIGCM2.Application.Tests/PuntosDeVenta/ProximoNumero/GetProximoNumeroQueryHandlerTests.cs

using NSubstitute;
using SIGCM2.Application.Abstractions.Persistence;
using SIGCM2.Application.PuntosDeVenta.ProximoNumero;
using SIGCM2.Domain.Enums;

namespace SIGCM2.Application.Tests.PuntosDeVenta.ProximoNumero;

public class GetProximoNumeroQueryHandlerTests
{
    private readonly IPuntoDeVentaRepository _repo = Substitute.For<IPuntoDeVentaRepository>();
    private readonly GetProximoNumeroQueryHandler _handler;

    public GetProximoNumeroQueryHandlerTests()
    {
        _handler = new GetProximoNumeroQueryHandler(_repo);
    }

    [Fact]
    public async Task Handle_ExistingSequence_ReturnsUltimoNumeroMasUno()
    {
        _repo.GetUltimoNumeroAsync(10, TipoComprobante.FacturaA, Arg.Any<CancellationToken>())
             .Returns(7);

        var result = await _handler.Handle(new GetProximoNumeroQuery(10, TipoComprobante.FacturaA));

        Assert.Equal(TipoComprobante.FacturaA, result.TipoComprobante);
        Assert.Equal(8, result.ProximoNumero);
    }

    [Fact]
    public async Task Handle_NoExistingSequence_ReturnsOne()
    {
        _repo.GetUltimoNumeroAsync(10, TipoComprobante.FacturaB, Arg.Any<CancellationToken>())
             .Returns((int?)null);

        var result = await _handler.Handle(new GetProximoNumeroQuery(10, TipoComprobante.FacturaB));

        Assert.Equal(1, result.ProximoNumero);
    }

    [Fact]
    public async Task Handle_DoesNotCallReservarNumero()
    {
        _repo.GetUltimoNumeroAsync(10, TipoComprobante.FacturaA, Arg.Any<CancellationToken>())
             .Returns(5);

        await _handler.Handle(new GetProximoNumeroQuery(10, TipoComprobante.FacturaA));

        await _repo.DidNotReceive().ReservarNumeroAsync(
            Arg.Any<int>(), Arg.Any<TipoComprobante>(), Arg.Any<CancellationToken>());
    }
}