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Co-authored-by: Omdanii <mahmmoud.hassanein@gmail.com>

research/openrpc/roundtrip_test.py

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+import json
+import sys
+from dense_md_to_openrpc import parse_dense_markdown
+from jinja2 import Template
+
+# Load the Jinja2 template for JSON → Markdown
+with open("openrpc_to_md.j2") as f:
+    md_template = Template(f.read())
+
+def roundtrip(md_path: str):
+    print(f"🔄 Round-trip test for {md_path}")
+
+    # 1. Markdown → JSON
+    with open(md_path) as f:
+        md_text = f.read()
+    spec1 = parse_dense_markdown(md_text)
+    print("✅ Step 1: Markdown → JSON")
+
+    # 2. Validate already happens inside parse_dense_markdown
+
+    # 3. JSON → Markdown
+    md2 = md_template.render(spec=spec1)
+    print("✅ Step 2: JSON → Markdown")
+
+    # 4. Markdown → JSON again
+    spec2 = parse_dense_markdown(md2)
+    print("✅ Step 3: Markdown → JSON (again)")
+
+    # 5. Compare results
+    spec1_str = json.dumps(spec1, sort_keys=True, indent=2)
+    spec2_str = json.dumps(spec2, sort_keys=True, indent=2)
+
+    if spec1_str == spec2_str:
+        print("🎉 Round-trip is stable! (JSON1 == JSON2)")
+    else:
+        print("⚠️ Round-trip mismatch!")
+        with open("spec1.json", "w") as f:
+            f.write(spec1_str)
+        with open("spec2.json", "w") as f:
+            f.write(spec2_str)
+        with open("roundtrip_diff.md", "w") as f:
+            f.write("## Original JSON (Markdown → JSON)\n```json\n")
+            f.write(spec1_str + "\n```\n")
+            f.write("\n## After Round-trip (JSON → Markdown → JSON)\n```json\n")
+            f.write(spec2_str + "\n```\n")
+        print("👉 Differences written to spec1.json, spec2.json, and roundtrip_diff.md")
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python roundtrip_test.py dense.md")
+        sys.exit(1)
+
+    roundtrip(sys.argv[1])