def test_gas_price_should_stay_the_same(self):
# given
value = 9000000000
fixed_gas_price = FixedGasPrice(value)
# expect
assert fixed_gas_price.get_gas_price(0) == value
assert fixed_gas_price.get_gas_price(1) == value
assert fixed_gas_price.get_gas_price(2) == value
assert fixed_gas_price.get_gas_price(5) == value
assert fixed_gas_price.get_gas_price(60) == value
assert fixed_gas_price.get_gas_price(120) == value
assert fixed_gas_price.get_gas_price(600) == value
assert fixed_gas_price.get_gas_price(1000000) == value
def test_gas_price_should_be_updated_by_update_gas_price_method(self):
# given
value1 = 9000000000
value2 = 16000000000
# and
fixed_gas_price = FixedGasPrice(value1)
# and
assert fixed_gas_price.get_gas_price(0) == value1
assert fixed_gas_price.get_gas_price(1) == value1
assert fixed_gas_price.get_gas_price(2) == value1
assert fixed_gas_price.get_gas_price(5) == value1
# when
fixed_gas_price.update_gas_price(value2)
# then
assert fixed_gas_price.get_gas_price(60) == value2
assert fixed_gas_price.get_gas_price(120) == value2
assert fixed_gas_price.get_gas_price(600) == value2