Refactor code structure for improved readability and maintainability; optimize performance in key functions.

src/AirGap/__Libraries/__Tests/StellaOps.AirGap.Bundle.Tests/BundleManifestTests.cs

@@ -0,0 +1,94 @@
+using System.Collections.Immutable;
+using FluentAssertions;
+using StellaOps.AirGap.Bundle.Models;
+using StellaOps.AirGap.Bundle.Serialization;
+using StellaOps.AirGap.Bundle.Services;
+using StellaOps.AirGap.Bundle.Validation;
+using Xunit;
+
+namespace StellaOps.AirGap.Bundle.Tests;
+
+public class BundleManifestTests
+{
+    [Fact]
+    public void Serializer_RoundTrip_PreservesFields()
+    {
+        var manifest = CreateManifest();
+        var json = BundleManifestSerializer.Serialize(manifest);
+        var deserialized = BundleManifestSerializer.Deserialize(json);
+        deserialized.Should().BeEquivalentTo(manifest);
+    }
+
+    [Fact]
+    public async Task Validator_FlagsMissingFeedFile()
+    {
+        var manifest = CreateManifest();
+        var validator = new BundleValidator();
+        var result = await validator.ValidateAsync(manifest, Path.GetTempPath());
+
+        result.IsValid.Should().BeFalse();
+        result.Errors.Should().NotBeEmpty();
+    }
+
+    [Fact]
+    public async Task Builder_CopiesComponentsAndComputesDigest()
+    {
+        var tempRoot = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
+        var sourceFile = Path.Combine(tempRoot, "feed.json");
+        Directory.CreateDirectory(tempRoot);
+        await File.WriteAllTextAsync(sourceFile, "feed");
+
+        var builder = new BundleBuilder();
+        var request = new BundleBuildRequest(
+            "offline-test",
+            "1.0.0",
+            null,
+            new[] { new FeedBuildConfig("feed-1", "nvd", "v1", sourceFile, "feeds/nvd.json", DateTimeOffset.UtcNow, FeedFormat.StellaOpsNative) },
+            Array.Empty<PolicyBuildConfig>(),
+            Array.Empty<CryptoBuildConfig>());
+
+        var outputPath = Path.Combine(tempRoot, "bundle");
+        var manifest = await builder.BuildAsync(request, outputPath);
+
+        manifest.BundleDigest.Should().NotBeNullOrEmpty();
+        File.Exists(Path.Combine(outputPath, "feeds", "nvd.json")).Should().BeTrue();
+    }
+
+    private static BundleManifest CreateManifest()
+    {
+        return new BundleManifest
+        {
+            BundleId = Guid.NewGuid().ToString(),
+            SchemaVersion = "1.0.0",
+            Name = "offline-test",
+            Version = "1.0.0",
+            CreatedAt = DateTimeOffset.UtcNow,
+            Feeds = ImmutableArray.Create(new FeedComponent(
+                "feed-1",
+                "nvd",
+                "v1",
+                "feeds/nvd.json",
+                new string('a', 64),
+                10,
+                DateTimeOffset.UtcNow,
+                FeedFormat.StellaOpsNative)),
+            Policies = ImmutableArray.Create(new PolicyComponent(
+                "policy-1",
+                "default",
+                "1.0",
+                "policies/default.rego",
+                new string('b', 64),
+                10,
+                PolicyType.OpaRego)),
+            CryptoMaterials = ImmutableArray.Create(new CryptoComponent(
+                "crypto-1",
+                "trust-root",
+                "certs/root.pem",
+                new string('c', 64),
+                10,
+                CryptoComponentType.TrustRoot,
+                null)),
+            TotalSizeBytes = 30
+        };
+    }
+}

src/AirGap/__Libraries/__Tests/StellaOps.AirGap.Bundle.Tests/StellaOps.AirGap.Bundle.Tests.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="xunit" Version="2.9.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.7">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\StellaOps.AirGap.Bundle\StellaOps.AirGap.Bundle.csproj" />
+  </ItemGroup>
+</Project>