Added shadow option to tree for mig

tests/unit/cli/build/defaults/test_applications_and_users.py

@@ -0,0 +1,67 @@
+import os
+import unittest
+import tempfile
+import shutil
+import yaml
+from pathlib import Path
+import subprocess
+
+class TestGenerateDefaultApplicationsUsers(unittest.TestCase):
+    def setUp(self):
+        # Setup temporary roles directory
+        self.temp_dir = Path(tempfile.mkdtemp())
+        self.roles_dir = self.temp_dir / "roles"
+        self.roles_dir.mkdir()
+
+        # Sample role with users meta
+        self.role = self.roles_dir / "web-app-app-with-users"
+        (self.role / "vars").mkdir(parents=True)
+        (self.role / "config").mkdir(parents=True)
+        (self.role / "meta").mkdir(parents=True)
+        (self.role / "users").mkdir(parents=True)
+
+        # Write application_id and configuration
+        (self.role / "vars" / "main.yml").write_text("application_id: app_with_users\n")
+        (self.role / "config" / "main.yml").write_text("setting: value\n")
+
+        # Write users meta
+        users_meta = {
+            'users': {
+                'alice': {'uid': 2001, 'gid': 2001},
+                'bob': {'uid': 2002, 'gid': 2002}
+            }
+        }
+        with (self.role / "users" / "main.yml").open('w', encoding='utf-8') as f:
+            yaml.dump(users_meta, f)
+
+        # Output file path
+        self.output_file = self.temp_dir / "output.yml"
+
+    def tearDown(self):
+        shutil.rmtree(self.temp_dir)
+
+    def test_users_injection(self):
+        """
+        When a users.yml exists with defined users, the script should inject a 'users'
+        mapping in the generated YAML, mapping each username to a Jinja2 reference.
+        """
+        script_path = Path(__file__).resolve().parents[5] / "cli" / "build/defaults/applications.py"
+        result = subprocess.run([
+            "python3", str(script_path),
+            "--roles-dir", str(self.roles_dir),
+            "--output-file", str(self.output_file)
+        ], capture_output=True, text=True)
+        self.assertEqual(result.returncode, 0, msg=result.stderr)
+        data = yaml.safe_load(self.output_file.read_text())
+
+        apps = data.get('defaults_applications', {})
+        # Only the app with users should be present
+        self.assertIn('app_with_users', apps)
+
+        # 'users' section should be present and correct
+        users_map = apps['app_with_users']['users']
+        expected = {'alice': '{{ users["alice"] }}', 'bob': '{{ users["bob"] }}'}
+        self.assertEqual(users_map, expected)
+
+if __name__ == '__main__':
+    unittest.main()