def test_search_existing_key_in_audit_ledger_returns_its_index(
audit_ledger, ordered_batches):
for expected_seq_no, (view_no, pp_seq_no) in enumerate(ordered_batches,
start=1):
_, actual_seq_no = CheckpointService._audit_txn_by_pp_seq_no(
audit_ledger, pp_seq_no)
assert expected_seq_no == actual_seq_no
def test_search_key_before_first_in_audit_ledger_returns_zero(
audit_ledger, ordered_batches):
last_view_no, last_pp_seq_no = ordered_batches[0] if ordered_batches else (
0, 0)
for view_no_dec, pp_seq_no_dec in [(0, 1), (0, 2), (1, 1)]:
pp_seq_no = last_pp_seq_no - pp_seq_no_dec
_, seq_no = CheckpointService._audit_txn_by_pp_seq_no(
audit_ledger, pp_seq_no)
assert seq_no == 0
