feat(application): repository abstraction + DTOs + validators + handlers CRUD PuntosDeVenta con auditoría + retry deadlock

tests/SIGCM2.Application.Tests/PuntosDeVenta/List/ListPuntosDeVentaQueryHandlerTests.cs

@@ -0,0 +1,76 @@
+using NSubstitute;
+using SIGCM2.Application.Abstractions.Persistence;
+using SIGCM2.Application.Common;
+using SIGCM2.Application.PuntosDeVenta.List;
+using SIGCM2.Domain.Entities;
+
+namespace SIGCM2.Application.Tests.PuntosDeVenta.List;
+
+public class ListPuntosDeVentaQueryHandlerTests
+{
+    private readonly IPuntoDeVentaRepository _repo = Substitute.For<IPuntoDeVentaRepository>();
+    private readonly ListPuntosDeVentaQueryHandler _handler;
+
+    public ListPuntosDeVentaQueryHandlerTests()
+    {
+        _handler = new ListPuntosDeVentaQueryHandler(_repo);
+    }
+
+    private static PuntoDeVenta MakePdv(int id) =>
+        new(id, 5, (short)id, "PdV " + id, null, true, DateTime.UtcNow, null);
+
+    [Fact]
+    public async Task Handle_ReturnsPagedDtoItems()
+    {
+        var items = new List<PuntoDeVenta> { MakePdv(1), MakePdv(2) };
+        var pagedResult = new PagedResult<PuntoDeVenta>(items, 1, 20, 2);
+
+        _repo.GetPagedAsync(Arg.Any<PuntosDeVentaQuery>(), Arg.Any<CancellationToken>())
+            .Returns(pagedResult);
+
+        var result = await _handler.Handle(new ListPuntosDeVentaQuery(1, 20, null, null));
+
+        Assert.Equal(2, result.Total);
+        Assert.Equal(2, result.Items.Count);
+        Assert.Equal(1, result.Items[0].NumeroAFIP);
+    }
+
+    [Fact]
+    public async Task Handle_ClampsPageSizeToMax100()
+    {
+        _repo.GetPagedAsync(Arg.Any<PuntosDeVentaQuery>(), Arg.Any<CancellationToken>())
+            .Returns(new PagedResult<PuntoDeVenta>([], 1, 100, 0));
+
+        await _handler.Handle(new ListPuntosDeVentaQuery(1, 500, null, null));
+
+        await _repo.Received(1).GetPagedAsync(
+            Arg.Is<PuntosDeVentaQuery>(q => q.PageSize == 100),
+            Arg.Any<CancellationToken>());
+    }
+
+    [Fact]
+    public async Task Handle_ClampsPageToMin1()
+    {
+        _repo.GetPagedAsync(Arg.Any<PuntosDeVentaQuery>(), Arg.Any<CancellationToken>())
+            .Returns(new PagedResult<PuntoDeVenta>([], 1, 20, 0));
+
+        await _handler.Handle(new ListPuntosDeVentaQuery(0, 20, null, null));
+
+        await _repo.Received(1).GetPagedAsync(
+            Arg.Is<PuntosDeVentaQuery>(q => q.Page == 1),
+            Arg.Any<CancellationToken>());
+    }
+
+    [Fact]
+    public async Task Handle_FiltersByMedioId()
+    {
+        _repo.GetPagedAsync(Arg.Any<PuntosDeVentaQuery>(), Arg.Any<CancellationToken>())
+            .Returns(new PagedResult<PuntoDeVenta>([], 1, 20, 0));
+
+        await _handler.Handle(new ListPuntosDeVentaQuery(1, 20, MedioId: 5, null));
+
+        await _repo.Received(1).GetPagedAsync(
+            Arg.Is<PuntosDeVentaQuery>(q => q.MedioId == 5),
+            Arg.Any<CancellationToken>());
+    }
+}