Refactor code structure and optimize performance across multiple modules

src/__Libraries/__Tests/StellaOps.Provcache.Tests/EvidenceChunkerTests.cs

@@ -2,6 +2,8 @@ using FluentAssertions;
 using StellaOps.Provcache;
 using Xunit;
 
+
+using StellaOps.TestKit;
 namespace StellaOps.Provcache.Tests;
 
 /// <summary>
@@ -18,7 +20,8 @@ public sealed class EvidenceChunkerTests
         _chunker = new EvidenceChunker(_options);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ChunkAsync_ShouldSplitEvidenceIntoMultipleChunks_WhenLargerThanChunkSize()
     {
         // Arrange
@@ -44,7 +47,8 @@ public sealed class EvidenceChunkerTests
         }
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ChunkAsync_ShouldCreateSingleChunk_WhenSmallerThanChunkSize()
     {
         // Arrange
@@ -62,7 +66,8 @@ public sealed class EvidenceChunkerTests
         result.Chunks[0].BlobSize.Should().Be(32);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ChunkAsync_ShouldHandleEmptyEvidence()
     {
         // Arrange
@@ -78,7 +83,8 @@ public sealed class EvidenceChunkerTests
         result.TotalSize.Should().Be(0);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ChunkAsync_ShouldProduceUniqueHashForEachChunk()
     {
         // Arrange - create evidence with distinct bytes per chunk
@@ -95,7 +101,8 @@ public sealed class EvidenceChunkerTests
         result.Chunks[0].ChunkHash.Should().NotBe(result.Chunks[1].ChunkHash);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ReassembleAsync_ShouldRecoverOriginalEvidence()
     {
         // Arrange
@@ -112,7 +119,8 @@ public sealed class EvidenceChunkerTests
         reassembled.Should().BeEquivalentTo(original);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ReassembleAsync_ShouldThrow_WhenMerkleRootMismatch()
     {
         // Arrange
@@ -128,7 +136,8 @@ public sealed class EvidenceChunkerTests
             .WithMessage("*Merkle root mismatch*");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ReassembleAsync_ShouldThrow_WhenChunkCorrupted()
     {
         // Arrange
@@ -151,7 +160,8 @@ public sealed class EvidenceChunkerTests
             .WithMessage("*verification failed*");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void VerifyChunk_ShouldReturnTrue_WhenChunkValid()
     {
         // Arrange
@@ -175,7 +185,8 @@ public sealed class EvidenceChunkerTests
         _chunker.VerifyChunk(chunk).Should().BeTrue();
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void VerifyChunk_ShouldReturnFalse_WhenHashMismatch()
     {
         // Arrange
@@ -195,7 +206,8 @@ public sealed class EvidenceChunkerTests
         _chunker.VerifyChunk(chunk).Should().BeFalse();
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMerkleRoot_ShouldReturnSameResult_ForSameInput()
     {
         // Arrange
@@ -210,7 +222,8 @@ public sealed class EvidenceChunkerTests
         root1.Should().StartWith("sha256:");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMerkleRoot_ShouldHandleSingleHash()
     {
         // Arrange
@@ -223,7 +236,8 @@ public sealed class EvidenceChunkerTests
         root.Should().Be("sha256:aabbccdd");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeMerkleRoot_ShouldHandleOddNumberOfHashes()
     {
         // Arrange
@@ -237,7 +251,8 @@ public sealed class EvidenceChunkerTests
         root.Should().StartWith("sha256:");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ChunkStreamAsync_ShouldYieldChunksInOrder()
     {
         // Arrange
@@ -261,7 +276,8 @@ public sealed class EvidenceChunkerTests
         }
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task Roundtrip_ShouldPreserveDataIntegrity()
     {
         // Arrange - use realistic chunk size