test_zero_amount()Test withdrawals with zero amount for the following cases, all withdrawals
| Test ID | test_case |
|---|---|
| two_withdrawals_no_value | ZeroAmountTestCases.TWO_ZERO |
| three_withdrawals_one_with_value | ZeroAmountTestCases.THREE_ONE_WITH_VALUE |
| four_withdrawals_one_with_value_one_with_max | ZeroAmountTestCases.FOUR_ONE_WITH_MAX |
| four_withdrawals_one_with_value_one_with_max_reversed_order | ZeroAmountTestCases.FOUR_ONE_WITH_MAX_REVERSED |