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src/Scanner/__Tests/StellaOps.Scanner.Reachability.Tests/RichGraphWriterTests.cs

@@ -36,4 +36,31 @@ public class RichGraphWriterTests
         Assert.Equal(2, result.NodeCount);
         Assert.Equal(1, result.EdgeCount);
     }
+
+    [Fact]
+    public async Task CarriesSymbolMetadataToRichGraph()
+    {
+        var writer = new RichGraphWriter(CryptoHashFactory.CreateDefault());
+        using var temp = new TempDir();
+
+        var union = new ReachabilityUnionGraph(
+            Nodes: new[]
+            {
+                new ReachabilityUnionNode(
+                    "sym:binary:target",
+                    "binary",
+                    "function",
+                    "ssl_read",
+                    CodeBlockHash: "sha256:blockhash",
+                    Symbol: new ReachabilitySymbol("_Zssl_read", "ssl_read", "DWARF", 0.9))
+            },
+            Edges: Array.Empty<ReachabilityUnionEdge>());
+
+        var rich = RichGraphBuilder.FromUnion(union, "test-analyzer", "1.0.0");
+        var result = await writer.WriteAsync(rich, temp.Path, "analysis-symbol-rich");
+
+        var json = await File.ReadAllTextAsync(result.GraphPath);
+        Assert.Contains("\"code_block_hash\":\"sha256:blockhash\"", json);
+        Assert.Contains("\"symbol\":{\"mangled\":\"_Zssl_read\",\"demangled\":\"ssl_read\",\"source\":\"DWARF\",\"confidence\":0.9}", json);
+    }
 }