Optimized test and added more output

tests/integration/test_role_include_import_roles_exist.py

@@ -57,17 +57,37 @@ class TestIncludeImportRoleExistence(unittest.TestCase):
                     self.fail(f"Failed to parse YAML in {file_path}")
 
             for doc in docs:
+                # Skip empty YAML documents (e.g. only "---")
+                if doc is None:
+                    continue
+
                 for role_name in self._collect_includes(doc):
+
+                    # NEW: Validate that role_name is a proper string
+                    if not isinstance(role_name, str) or not role_name.strip():
+                        self.fail(
+                            "Invalid include_role/import_role name detected.\n"
+                            f"  • File: {file_path}\n"
+                            f"  • Extracted name value: {repr(role_name)}\n"
+                            "The 'name:' field must contain a non-empty string.\n"
+                            "Example:\n"
+                            "  include_role:\n"
+                            "    name: my-role-name\n"
+                        )
+
                     # Convert Jinja2 templates and wildcards to glob patterns
                     pattern = re.sub(r"\{\{.*?\}\}", '*', role_name)
                     glob_path = os.path.join(self.roles_dir, pattern)
-                    # Check for matching role directories
+
                     matches = [p for p in glob.glob(glob_path) if os.path.isdir(p)]
                     if not matches:
                         missing.append((file_path, role_name))
 
         if missing:
-            messages = [f"File '{fp}' references missing role '{rn}'" for fp, rn in missing]
+            messages = [
+                f"File '{fp}' references missing role '{rn}'"
+                for fp, rn in missing
+            ]
             self.fail("\n".join(messages))
 
 if __name__ == '__main__':