stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/StellaOps.Canonical.Json.Tests/CanonVersionTests.CanonicalizeVersioned.Basic.cs

@@ -0,0 +1,44 @@
+using System.Text;
+using StellaOps.TestKit;
+using Xunit;
+
+namespace StellaOps.Canonical.Json.Tests;
+
+public partial class CanonVersionTests
+{
+    [Trait("Category", TestCategories.Unit)]
+    [Fact]
+    public void CanonicalizeVersioned_IncludesVersionMarker()
+    {
+        var obj = new { foo = "bar" };
+        var canonical = CanonJson.CanonicalizeVersioned(obj);
+        var json = Encoding.UTF8.GetString(canonical);
+
+        Assert.StartsWith("{\"_canonVersion\":\"stella:canon:v1\"", json);
+        Assert.Contains("\"foo\":\"bar\"", json);
+    }
+
+    [Trait("Category", TestCategories.Unit)]
+    [Fact]
+    public void CanonicalizeVersioned_VersionMarkerIsFirst()
+    {
+        var obj = new { aaa = 1, zzz = 2 };
+        var canonical = CanonJson.CanonicalizeVersioned(obj);
+        var json = Encoding.UTF8.GetString(canonical);
+
+        var versionIndex = json.IndexOf("_canonVersion", StringComparison.Ordinal);
+        var aaaIndex = json.IndexOf("aaa", StringComparison.Ordinal);
+        Assert.True(versionIndex < aaaIndex);
+    }
+
+    [Trait("Category", TestCategories.Unit)]
+    [Fact]
+    public void CanonicalizeVersioned_SortsOtherKeys()
+    {
+        var obj = new { z = 3, a = 1, m = 2 };
+        var canonical = CanonJson.CanonicalizeVersioned(obj);
+        var json = Encoding.UTF8.GetString(canonical);
+
+        Assert.Matches(@"\{""_canonVersion"":""[^""]+"",""a"":1,""m"":2,""z"":3\}", json);
+    }
+}