Added run_after integration test

tests/integration/test_run_after_application_ids.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+import os
+import unittest
+import yaml
+from pathlib import Path
+
+class TestRunAfterRoles(unittest.TestCase):
+    def setUp(self):
+        self.roles_dir = Path(__file__).resolve().parent.parent.parent / "roles"
+        self.valid_role_names = {p.name for p in self.roles_dir.iterdir() if p.is_dir()}
+
+    def test_run_after_roles_are_valid(self):
+        invalid_refs = []
+
+        for role in self.valid_role_names:
+            meta_path = self.roles_dir / role / "meta" / "main.yml"
+            if not meta_path.exists():
+                continue
+
+            try:
+                with open(meta_path, "r", encoding="utf-8") as f:
+                    data = yaml.safe_load(f) or {}
+            except Exception as e:
+                self.fail(f"Failed to parse {meta_path}: {e}")
+                continue
+
+            run_after = data.get("galaxy_info", {}).get("run_after", [])
+            for ref in run_after:
+                if ref not in self.valid_role_names:
+                    invalid_refs.append((role, ref))
+
+        if invalid_refs:
+            msg = "\n".join(f"{role}: invalid run_after → {ref}" for role, ref in invalid_refs)
+            self.fail(f"Found invalid run_after references:\n{msg}")
+
+if __name__ == "__main__":
+    unittest.main()