Code import - branch release/SIENTIAPDE-1645

tests/test_runtime_paths.py

@@ -0,0 +1,18 @@
+"""Tests for runtime filesystem layout constants."""
+
+from unittest.mock import patch
+
+
+def test_ensure_runtime_directories_creates_expected_paths():
+    from model_manager.runtime_paths import (
+        LOGS_DIR,
+        REPORTS_ROOT,
+        REPORTS_TEMP_DIR,
+        ensure_runtime_directories,
+    )
+
+    with patch('model_manager.runtime_paths.makedirs') as makedirs_mock:
+        ensure_runtime_directories()
+
+    created = {call.args[0] for call in makedirs_mock.call_args_list}
+    assert created == {REPORTS_ROOT, REPORTS_TEMP_DIR, LOGS_DIR}