Refactor code structure and optimize performance across multiple modules

src/Concelier/__Tests/StellaOps.Concelier.Merge.Tests/MergeHashBackportDifferentiationTests.cs

@@ -9,6 +9,7 @@ using FluentAssertions;
 using StellaOps.Concelier.Merge.Identity;
 using StellaOps.Concelier.Merge.Identity.Normalizers;
 
+using StellaOps.TestKit;
 namespace StellaOps.Concelier.Merge.Tests;
 
 /// <summary>
@@ -26,7 +27,8 @@ public sealed class MergeHashBackportDifferentiationTests
 
     #region Same Patch Lineage = Same Hash
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_SamePatchLineage_ProducesSameHash()
     {
         // Arrange
@@ -56,7 +58,8 @@ public sealed class MergeHashBackportDifferentiationTests
         hash1.Should().Be(hash2, "same patch lineage should produce same hash");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_NoPatchLineage_ProducesSameHash()
     {
         // Arrange
@@ -90,7 +93,8 @@ public sealed class MergeHashBackportDifferentiationTests
 
     #region Different Patch Lineage = Different Hash
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_DifferentPatchLineage_ProducesDifferentHash()
     {
         // Arrange - Upstream fix vs distro-specific backport
@@ -121,7 +125,8 @@ public sealed class MergeHashBackportDifferentiationTests
             "different patch lineage should produce different hash");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_WithVsWithoutPatchLineage_ProducesDifferentHash()
     {
         // Arrange
@@ -152,7 +157,8 @@ public sealed class MergeHashBackportDifferentiationTests
             "advisory with patch lineage should differ from one without");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_DebianVsRhelBackport_ProducesDifferentHash()
     {
         // Arrange - Same CVE, different distro backports
@@ -187,7 +193,8 @@ public sealed class MergeHashBackportDifferentiationTests
 
     #region Patch Lineage Normalization
 
-    [Theory]
+    [Trait("Category", TestCategories.Unit)]
+        [Theory]
     [InlineData(
         "abc123def456abc123def456abc123def456abcd",
         "ABC123DEF456ABC123DEF456ABC123DEF456ABCD",
@@ -230,7 +237,8 @@ public sealed class MergeHashBackportDifferentiationTests
         hash1.Should().Be(hash2, reason);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_AbbreviatedSha_DiffersFromFullSha()
     {
         // Abbreviated SHA is treated as different from a full different SHA
@@ -265,7 +273,8 @@ public sealed class MergeHashBackportDifferentiationTests
 
     #region Real-World Scenarios
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_GoldenCorpus_DebianBackportVsNvd()
     {
         // Golden corpus test case: CVE-2024-1234 with Debian backport
@@ -300,7 +309,8 @@ public sealed class MergeHashBackportDifferentiationTests
             "NVD and Debian entries should produce different hashes due to package and version differences");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_GoldenCorpus_DistroSpecificFix()
     {
         // Golden corpus test case: Distro-specific fix different from upstream
@@ -331,7 +341,8 @@ public sealed class MergeHashBackportDifferentiationTests
             "distro-specific fix should produce different hash from upstream");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_SameUpstreamBackported_ProducesSameHash()
     {
         // When two distros backport the SAME upstream patch, they should merge
@@ -367,7 +378,8 @@ public sealed class MergeHashBackportDifferentiationTests
 
     #region Edge Cases
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_EmptyPatchLineage_TreatedAsNull()
     {
         var emptyLineage = new MergeHashInput
@@ -397,7 +409,8 @@ public sealed class MergeHashBackportDifferentiationTests
             "empty and null patch lineage should produce same hash");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_WhitespacePatchLineage_TreatedAsNull()
     {
         var whitespaceLineage = new MergeHashInput
@@ -427,7 +440,8 @@ public sealed class MergeHashBackportDifferentiationTests
             "whitespace-only patch lineage should be treated as null");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMergeHash_IsDeterministic()
     {
         // Verify determinism across multiple calls