def test_calculate_fee_larger():
mock_order_size = 1000
mock_comission = 0.1
fee = calculate_fee(mock_order_size, mock_comission)
assert fee == 1
def test_calculate_fee_no_comission():
mock_price = 100
mock_comission = 0.00
fee = calculate_fee(mock_price, mock_comission)
assert fee == 0.0
def test_calculate_fee_again():
mock_price = 200
mock_comission = 0.1
fee = calculate_fee(mock_price, mock_comission)
assert fee == 0.2