diff --git a/tests/test_reference_runs/test_pre_deployment.py b/tests/test_reference_runs/test_pre_deployment.py
index cdd8a0f015baca42d15d9f3aa123ff992786fbdb..152f0a4b4c20fa9b6a7b03680c692d08f7e8f57b 100644
--- a/tests/test_reference_runs/test_pre_deployment.py
+++ b/tests/test_reference_runs/test_pre_deployment.py
@@ -13,6 +13,7 @@ from typing import Any, Dict, List, Tuple
 import h5py
 import numpy as np
 import pytest
+import yaml
 
 import xfel_calibrate.calibrate as calibrate
 
@@ -164,9 +165,9 @@ def validate_hdf5_files(
         test_key (str): The test name.
         out_folder (pathlib.Path): The OUT folder for the tested data.
         reference_folder (pathlib.Path): The Reference folder for
-          the reference data to validate against
+            the reference data to validate against
         cal_type (str): The type of calibration processing.
-          e.g. dark or correct.
+            e.g. dark or correct.
     """
     print("\n--- Compare HDF5 files  ----")
     print("REF:", reference_folder)
@@ -257,6 +258,22 @@ def slurm_watcher(test_key: str, std_out: str):
     LOGGER.info(f"{test_key}'s jobs were COMPLETED")
 
 
+def compare_metadata_ccvs(test, reference, tested_key):
+
+    def load_yaml(file_path):
+        with open(file_path, 'r') as file:
+            return yaml.safe_load(file)
+
+    # Load the relevant section from both files
+    ccvs_test = load_yaml(test).get(tested_key, {})
+    ccvs_reference = load_yaml(reference).get(tested_key, {})
+
+    # Compare the content directly
+    if ccvs_test == ccvs_reference:
+        return True
+    else:
+        return False
+
 @pytest.mark.manual_run
 @pytest.mark.parametrize(
     "test_key, val_dict",
@@ -317,10 +334,9 @@ def test_xfel_calibrate(
     )
 
     report_name = out_folder / f"{test_key}_{datetime.now():%y%m%d_%H%M%S}"
-
     cal_conf["report-to"] = str(report_name)
 
-    cmd = parse_config(cmd, cal_conf, out_folder)
+    cmd = parse_config(cmd, cal_conf, str(out_folder))
 
     if only_validate:
         assert validate_hdf5_files(
@@ -359,6 +375,14 @@ def test_xfel_calibrate(
         if time_counter > time_to_wait:
             assert False, f"{test_key} failure, report doesn't exists."
     LOGGER.info("Report found.")
+    # For corrections validate same calibration constants were retrieved.
+
+    metadata_file = f"calibration_metadata_{cal_conf['karabo-id']}"
+    assert compare_metadata_ccvs(
+        out_folder / metadata_file,
+        reference_folder / metadata_file,
+        "retrieved-constants",
+    ), "Found difference in the metadata for the retrieved Constants."
 
     # Stop tests at this point, if desired.
     if not skip_numerical_validation: