tests/SIGCM2.Application.Tests/Products/Repository/ProductRepositoryTests.cs

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+using Dapper;
+using FluentAssertions;
+using Microsoft.Data.SqlClient;
+using SIGCM2.Application.Common;
+using SIGCM2.Domain.Entities;
+using SIGCM2.Infrastructure.Persistence;
+using SIGCM2.TestSupport;
+
+namespace SIGCM2.Application.Tests.Products.Repository;
+
+/// <summary>
+/// PRD-002 — Integration tests for ProductRepository against SIGCM2_Test_App.
+/// Uses shared SqlTestFixture via [Collection("Database")] — fixture manages Respawn + seeds.
+/// Verifies full CRUD, paged listing, UQ constraint, and temporal history.
+/// </summary>
+[Collection("Database")]
+public class ProductRepositoryTests : IAsyncLifetime
+{
+    private readonly SqlTestFixture _db;
+    private ProductRepository _repository = null!;
+    private int _defaultMedioId;
+    private int _defaultProductTypeId;
+
+    public ProductRepositoryTests(SqlTestFixture db)
+    {
+        _db = db;
+    }
+
+    public async Task InitializeAsync()
+    {
+        await _db.ResetAndSeedAsync();
+
+        var factory = new SqlConnectionFactory(TestConnectionStrings.AppTestDb);
+        _repository = new ProductRepository(factory);
+
+        // Insert Medio and ProductType for use across all tests
+        await using var conn = new SqlConnection(TestConnectionStrings.AppTestDb);
+        await conn.OpenAsync();
+
+        _defaultMedioId = await conn.ExecuteScalarAsync<int>("""
+            INSERT INTO dbo.Medio (Codigo, Nombre, Tipo, Activo)
+            OUTPUT INSERTED.Id
+            VALUES ('PR', 'Prueba Medio', 1, 1)
+            """);
+
+        _defaultProductTypeId = await conn.ExecuteScalarAsync<int>("""
+            INSERT INTO dbo.ProductType (Nombre, HasDuration, RequiresText, RequiresCategory, IsBundle, AllowImages)
+            OUTPUT INSERTED.Id
+            VALUES ('Tipo Prueba', 0, 0, 0, 0, 0)
+            """);
+    }
+
+    public Task DisposeAsync() => Task.CompletedTask;
+
+    private Product AProduct(string nombre = "Clasificado Test") =>
+        Product.ForCreation(
+            nombre: nombre,
+            medioId: _defaultMedioId,
+            productTypeId: _defaultProductTypeId,
+            rubroId: null,
+            basePrice: 100.50m,
+            priceDurationDays: null,
+            timeProvider: TimeProvider.System);
+
+    // ── AddAsync + GetByIdAsync roundtrip ─────────────────────────────────────
+
+    [Fact]
+    public async Task AddAsync_AndGetById_ReturnsAllFields()
+    {
+        var product = AProduct("Mi Producto");
+        var id = await _repository.AddAsync(product);
+        var result = await _repository.GetByIdAsync(id);
+
+        result.Should().NotBeNull();
+        result!.Id.Should().Be(id);
+        result.Nombre.Should().Be("Mi Producto");
+        result.MedioId.Should().Be(_defaultMedioId);
+        result.ProductTypeId.Should().Be(_defaultProductTypeId);
+        result.RubroId.Should().BeNull();
+        result.BasePrice.Should().Be(100.50m);
+        result.PriceDurationDays.Should().BeNull();
+        result.IsActive.Should().BeTrue();
+        result.FechaCreacion.Should().BeAfter(DateTime.MinValue);
+        result.FechaModificacion.Should().BeNull();
+    }
+
+    // ── GetByIdAsync null for unknown ─────────────────────────────────────────
+
+    [Fact]
+    public async Task GetByIdAsync_UnknownId_ReturnsNull()
+    {
+        var result = await _repository.GetByIdAsync(999999);
+
+        result.Should().BeNull();
+    }
+
+    // ── UpdateAsync ────────────────────────────────────────────────────────────
+
+    [Fact]
+    public async Task UpdateAsync_ChangesNombreAndBasePrice()
+    {
+        var id = await _repository.AddAsync(AProduct("Original"));
+        var product = await _repository.GetByIdAsync(id);
+        var updated = product!.WithUpdated("Renombrado", null, 200m, null, TimeProvider.System);
+
+        await _repository.UpdateAsync(updated);
+        var result = await _repository.GetByIdAsync(id);
+
+        result!.Nombre.Should().Be("Renombrado");
+        result.BasePrice.Should().Be(200m);
+        result.FechaModificacion.Should().NotBeNull();
+    }
+
+    // ── WithDeactivated creates history row ────────────────────────────────────
+
+    [Fact]
+    public async Task UpdateAsync_Deactivate_CreatesHistoryRow()
+    {
+        var id = await _repository.AddAsync(AProduct("Para Desactivar"));
+        var product = await _repository.GetByIdAsync(id);
+        var deactivated = product!.WithDeactivated(TimeProvider.System);
+
+        await _repository.UpdateAsync(deactivated);
+
+        // Verify temporal history: ProductType_History should have at least 1 row
+        await using var conn = new SqlConnection(TestConnectionStrings.AppTestDb);
+        await conn.OpenAsync();
+        var historyCount = await conn.ExecuteScalarAsync<int>(
+            "SELECT COUNT(1) FROM dbo.Product_History WHERE Id = @Id", new { Id = id });
+        historyCount.Should().BeGreaterThanOrEqualTo(1);
+    }
+
+    // ── GetPagedAsync ─────────────────────────────────────────────────────────
+
+    [Fact]
+    public async Task GetPagedAsync_DefaultQuery_ReturnsActiveProducts()
+    {
+        await _repository.AddAsync(AProduct("Producto A"));
+        await _repository.AddAsync(AProduct("Producto B"));
+
+        var result = await _repository.GetPagedAsync(new ProductsQuery(Page: 1, PageSize: 20, Activo: true));
+
+        result.Items.Should().HaveCountGreaterThanOrEqualTo(2);
+        result.Items.Should().AllSatisfy(p => p.IsActive.Should().BeTrue());
+    }
+
+    [Fact]
+    public async Task GetPagedAsync_FilterByMedioId_ReturnsOnlyMatching()
+    {
+        await _repository.AddAsync(AProduct("Producto Filtrado"));
+
+        var result = await _repository.GetPagedAsync(
+            new ProductsQuery(Page: 1, PageSize: 20, Activo: null, MedioId: _defaultMedioId));
+
+        result.Items.Should().AllSatisfy(p => p.MedioId.Should().Be(_defaultMedioId));
+    }
+
+    // ── ExistsByNombreAsync ────────────────────────────────────────────────────
+
+    [Fact]
+    public async Task ExistsByNombreAsync_ExistingActiveProduct_ReturnsTrue()
+    {
+        var nombre = "Nombre Unico Test";
+        await _repository.AddAsync(AProduct(nombre));
+
+        var result = await _repository.ExistsByNombreAsync(nombre, _defaultMedioId, _defaultProductTypeId);
+
+        result.Should().BeTrue();
+    }
+
+    [Fact]
+    public async Task ExistsByNombreAsync_ExcludeSelf_ReturnsFalse()
+    {
+        var nombre = "Nombre Self Excluido";
+        var id = await _repository.AddAsync(AProduct(nombre));
+
+        var result = await _repository.ExistsByNombreAsync(nombre, _defaultMedioId, _defaultProductTypeId, excludeId: id);
+
+        result.Should().BeFalse();
+    }
+
+    [Fact]
+    public async Task ExistsByNombreAsync_NonExisting_ReturnsFalse()
+    {
+        var result = await _repository.ExistsByNombreAsync("Nombre Que No Existe XYZ", _defaultMedioId, _defaultProductTypeId);
+
+        result.Should().BeFalse();
+    }
+
+    // ── UQ index: deactivated allows reuse of name ────────────────────────────
+
+    [Fact]
+    public async Task ExistsByNombreAsync_DeactivatedProduct_ReturnsFalse_AllowsReuse()
+    {
+        var nombre = "Nombre Reutilizable";
+        var id = await _repository.AddAsync(AProduct(nombre));
+        var product = await _repository.GetByIdAsync(id);
+        await _repository.UpdateAsync(product!.WithDeactivated(TimeProvider.System));
+
+        // After deactivation, name should be available again
+        var result = await _repository.ExistsByNombreAsync(nombre, _defaultMedioId, _defaultProductTypeId);
+
+        result.Should().BeFalse();
+    }
+}