def mine(self, block : Block):
while True:
index = self.__index_generator.next()
block_object = str(index) + str(block.time_stamp) + str(block.data) + str(block.pre_hash)
block_hash = self.__hash_generator.generate(block_object)
if self.__policy.check(block_hash):
block.index = index
block.block_hash = block_hash
return block
def test_CreateABlockWhenSetAPropertyThenItCouldNotBeSetAgain(self):
block = Block(0, 0, "hello", "123", "456")
block.index = 1
block.time_stamp = 1
block.data = "bye"
block.pre_hash = "789"
block.block_hash = "100"
assert_that(block.index, equal_to(0))
assert_that(block.time_stamp, equal_to(0))
assert_that(block.data, equal_to("hello"))
assert_that(block.pre_hash, equal_to("123"))
assert_that(block.block_hash, equal_to("456"))