From 03a695feb9ef724281ac12e95eb294967ae6c322 Mon Sep 17 00:00:00 2001
From: dmolinari <dmolinari@eldia.com>
Date: Sat, 18 Apr 2026 21:44:24 -0300
Subject: [PATCH] refactor(tests): DatabaseCollection centraliza
 ICollectionFixture<SqlTestFixture>
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Registra la colección "Database" con SqlTestFixture como fixture compartido
para Application.Tests (elimina el ctor-con-string inline en cada test class).
Agrega Using global a ambos proyectos para evitar usings por archivo.
---
 tests/SIGCM2.Api.Tests/SIGCM2.Api.Tests.csproj    |  1 +
 .../DatabaseCollection.cs                         | 15 +++++++++++++++
 .../SIGCM2.Application.Tests.csproj               |  2 ++
 3 files changed, 18 insertions(+)
 create mode 100644 tests/SIGCM2.Application.Tests/DatabaseCollection.cs

diff --git a/tests/SIGCM2.Api.Tests/SIGCM2.Api.Tests.csproj b/tests/SIGCM2.Api.Tests/SIGCM2.Api.Tests.csproj
index b7f3581..872163a 100644
--- a/tests/SIGCM2.Api.Tests/SIGCM2.Api.Tests.csproj
+++ b/tests/SIGCM2.Api.Tests/SIGCM2.Api.Tests.csproj
@@ -27,6 +27,7 @@
 
   <ItemGroup>
     <Using Include="Xunit" />
+    <Using Include="SIGCM2.TestSupport" />
   </ItemGroup>
 
 </Project>
diff --git a/tests/SIGCM2.Application.Tests/DatabaseCollection.cs b/tests/SIGCM2.Application.Tests/DatabaseCollection.cs
new file mode 100644
index 0000000..f3f6086
--- /dev/null
+++ b/tests/SIGCM2.Application.Tests/DatabaseCollection.cs
@@ -0,0 +1,15 @@
+using SIGCM2.TestSupport;
+using Xunit;
+
+namespace SIGCM2.Application.Tests;
+
+/// <summary>
+/// Declares the "Database" xUnit collection backed by a single shared SqlTestFixture.
+/// All test classes decorated with [Collection("Database")] share one fixture instance
+/// per test run — eliminating concurrent Respawner collisions.
+/// </summary>
+[CollectionDefinition("Database")]
+public sealed class DatabaseCollection : ICollectionFixture<SqlTestFixture>
+{
+    // Intentionally empty: this class only exists to declare the collection/fixture binding.
+}
diff --git a/tests/SIGCM2.Application.Tests/SIGCM2.Application.Tests.csproj b/tests/SIGCM2.Application.Tests/SIGCM2.Application.Tests.csproj
index d94bcf5..8c51a38 100644
--- a/tests/SIGCM2.Application.Tests/SIGCM2.Application.Tests.csproj
+++ b/tests/SIGCM2.Application.Tests/SIGCM2.Application.Tests.csproj
@@ -24,10 +24,12 @@
     <ProjectReference Include="..\..\src\api\SIGCM2.Application\SIGCM2.Application.csproj" />
     <ProjectReference Include="..\..\src\api\SIGCM2.Infrastructure\SIGCM2.Infrastructure.csproj" />
     <ProjectReference Include="..\..\src\api\SIGCM2.Domain\SIGCM2.Domain.csproj" />
+    <ProjectReference Include="..\SIGCM2.TestSupport\SIGCM2.TestSupport.csproj" />
   </ItemGroup>
 
   <ItemGroup>
     <Using Include="Xunit" />
+    <Using Include="SIGCM2.TestSupport" />
   </ItemGroup>
 
 </Project>