feat(api+testing): select todos + testing

backend/tests/test_model_todo.py

@@ -0,0 +1,19 @@
+from src.neo_neo_todo.models.todo import select_todos
+
+
+async def test_model_todo_select_todos(db_pool):
+    todos_list_all = await select_todos(db_pool, 1)
+
+    assert len(todos_list_all) == 3
+
+    todos_list_completed_false = await select_todos(db_pool, 1, False)
+
+    assert len(todos_list_completed_false) == 3
+
+    todos_list_completed_true = await select_todos(db_pool, 1, True)
+
+    assert len(todos_list_completed_true) == 0
+
+    todos_list_non_existent_member_id = await select_todos(db_pool, 12341234)
+
+    assert len(todos_list_non_existent_member_id) == 0