Added a first regression test attempt. It currently fails and values are hardcoded

test_regression.py

@@ -0,0 +1,44 @@
+import pytest
+import pandas as pd
+import unittest
+from result_data_processor import ResultDataProcessor
+import os
+
+class TestRegression(unittest.TestCase):
+    def test_data_output_is_the_same(self):
+
+        # # Run code and get output
+        # df = ResultDataProcessor().data
+
+        # # Save output to CSV
+        # commit = '5603e9f51b643dbbb3da62943d5f26c48e11ae9b'
+        # outfile = f'output_{commit}.csv'
+        # df.to_csv(outfile)
+
+        # # Checkout previous commit
+        # prev_commit = '02b17021c8c2759ae08d23578b11bdb493941479'
+        # checkout_command = f'git checkout {prev_commit}' 
+        # os.system(checkout_command)
+
+        # # Rerun and save output
+        # df = ResultDataProcessor().data
+        # prev_outfile = f'output_{prev_commit}.csv'
+        # prev_df.to_csv(prev_outfile)
+
+        # # Diff outputs
+        # import filecmp
+        # assert filecmp.cmp(outfile, prev_outfile)
+
+        df_current = ResultDataProcessor().data
+
+        # Load the reference output file (generated manually from a previous commit)
+        commit = '5b83d0bbaf92089fd7713e9e8edaa14c821b0dc7'
+        reference_file = f'output_{commit}.csv'
+        df_reference = pd.read_csv(reference_file)
+
+        # Compare DataFrames, allowing for some tolerance in floating-point comparisons
+        pd.testing.assert_frame_equal(df_current, df_reference, check_dtype=False, atol=1e-5)
+
+
+if __name__ == '__main__':
+    unittest.main()