Cover MyRealTrip MCP wrapper parsing

Add focused unit tests for JSON object validation, key=value decoding, and override merge behavior so the new wrapper has offline regression coverage.

Constraint: PR #229 introduces a public MCP wrapper whose live endpoint should not be required for CI coverage.

Rejected: Live MCP smoke as the only validation | upstream availability would make the regression path flaky.

Confidence: high

Scope-risk: narrow

Directive: Keep wrapper argument parsing covered without requiring network or mcp package installation.

Tested: python3 -m unittest scripts.test_myrealtrip_mcp; node --test scripts/skill-docs.test.js; ./scripts/validate-skills.sh

Not-tested: Live MyRealTrip MCP endpoint call.

scripts/test_myrealtrip_mcp.py

@@ -0,0 +1,41 @@
+import argparse
+import importlib.util
+import pathlib
+import unittest
+
+MODULE_PATH = pathlib.Path(__file__).resolve().parents[1] / "myrealtrip-search" / "scripts" / "myrealtrip_mcp.py"
+spec = importlib.util.spec_from_file_location("myrealtrip_mcp", MODULE_PATH)
+myrealtrip_mcp = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(myrealtrip_mcp)
+
+
+class MyRealTripMcpWrapperTests(unittest.TestCase):
+    def test_parse_json_object_requires_object(self):
+        self.assertEqual(myrealtrip_mcp.parse_json_object('{"query":"제주"}', arg_name="--json"), {"query": "제주"})
+        with self.assertRaises(argparse.ArgumentTypeError):
+            myrealtrip_mcp.parse_json_object('["not", "object"]', arg_name="--json")
+
+    def test_parse_kv_pairs_json_decodes_values(self):
+        parsed = myrealtrip_mcp.parse_kv_pairs(["query=오사카", "perPage=5", "filters={\"theme\":\"ticket\"}"])
+        self.assertEqual(parsed["query"], "오사카")
+        self.assertEqual(parsed["perPage"], 5)
+        self.assertEqual(parsed["filters"], {"theme": "ticket"})
+
+    def test_parse_args_merges_json_and_kv_arguments(self):
+        args = myrealtrip_mcp.parse_args([
+            "call",
+            "searchTnas",
+            "--json",
+            '{"query":"오사카","perPage":3}',
+            "--arg",
+            "perPage=5",
+        ])
+        tool_args = dict(args.json_args or {})
+        tool_args.update(myrealtrip_mcp.parse_kv_pairs(args.kv_args))
+        self.assertEqual(args.command, "call")
+        self.assertEqual(args.tool, "searchTnas")
+        self.assertEqual(tool_args, {"query": "오사카", "perPage": 5})
+
+
+if __name__ == "__main__":
+    unittest.main()