fix: resolve test hang caused by PostgreSQL lock conflict in test_cell.py

backend/tests/conftest.py

@@ -6,7 +6,6 @@
 
 from api import create_app, db
 from api.models.user import User
-from api.models.cell import Cell
 from api.models.sensor import Sensor
 from api.models.data import Data
 
@@ -166,21 +165,6 @@ def clear_data(test_client):
     yield test_client
 
 
-@pytest.fixture(scope="module")
-def setup_cells(test_client):
-    # db.drop_all()
-    # Create the database and the database table
-    db.create_all()
-    cell = Cell("cell_1", "", 1, 1, False, None)
-    cell2 = Cell("cell_2", "", 2, 2, False, None)
-    db.session.add(cell)
-    db.session.add(cell2)
-    db.session.commit()
-
-    # context for testing fixure
-    yield test_client
-
-
 @pytest.fixture(scope="module")
 def cli_test_client():
     # Set the Testing configuration prior to creating the Flask application

backend/tests/test_cell.py

@@ -1,22 +1,31 @@
+from api import db
 from api.models.cell import Cell
 
 
-def test_cell_search_by_name(setup_cells):
+def test_cell_search_by_name(init_database):
     """
     GIVEN cells exist in the database
     WHEN searching cells by name pattern
     THEN only cells whose names match the pattern are returned
     """
-    results = Cell.search_by_name("cell")
+    cell1 = Cell("search_cell_alpha", "", 1, 1, False, None)
+    cell2 = Cell("search_cell_beta", "", 2, 2, False, None)
+    db.session.add(cell1)
+    db.session.add(cell2)
+    db.session.commit()
+
+    results = Cell.search_by_name("search_cell")
     assert len(results) == 2
 
-    results = Cell.search_by_name("cell_1")
+    results = Cell.search_by_name("alpha")
     assert len(results) == 1
-    assert results[0].name == "cell_1"
+    assert results[0].name == "search_cell_alpha"
 
     results = Cell.search_by_name("nonexistent")
     assert len(results) == 0
 
+    db.session.remove()
+
 
 # def test_cell_post_returns_id_and_name(init_database):
 #     """