studied state was not connected (openMetadataInitiative#60)

* studied state was not connected

* test for unattached subject state

bids2openminds/main.py

@@ -268,7 +268,8 @@ def create_subjects(subject_id, layout_df, layout, collection):
             subject_state_dict[f"{subject}"] = state_cache_dict
             subject_cache = omcore.Subject(
                 lookup_label=f"{subject_name}",
-                internal_identifier=f"{subject_name}"
+                internal_identifier=f"{subject_name}",
+                studied_states=state_cache
             )
             subjects_dict[f"{subject}"] = subject_cache
             subjects_list.append(subject_cache)

test/test_bids_examples.py

@@ -27,10 +27,12 @@ def test_example_datasets(dataset_label, dataset_subject_number, dataset_subject
     files_number = 0
     file_bundles_number = 0
     behavioral_protocol_number = 0
+    subject_state_number_besed_on_subject = 0
 
     for item in c:
         if item.type_ == "https://openminds.ebrains.eu/core/Subject":
             subject_number += 1
+            subject_state_number_besed_on_subject += len(item.studied_states)
         if item.type_ == "https://openminds.ebrains.eu/core/SubjectState":
             subject_state_number += 1
         if item.type_ == "https://openminds.ebrains.eu/core/Person":
@@ -44,6 +46,7 @@ def test_example_datasets(dataset_label, dataset_subject_number, dataset_subject
 
     assert dataset_subject_number == subject_number
     assert dataset_subject_state_number == subject_state_number
+    assert subject_state_number_besed_on_subject == subject_state_number, "There was a discrepancy between the total number of subject states and the subject states attached to subjects."
     assert dataset_person_number == person_number
     assert dataset_files_number == files_number
     assert dataset_file_bundles_number == file_bundles_number