def __generate_genasis(self):
""" Generate the genesis block """
b = Block(prev_hash="########")
b.id = 0
b.hash = "----------------"
b.proof_no = 0
return b
def test_create_block(self):
gen_block = block = Block.generate_genasis()
block = Block.generate_block(last_block=gen_block,
nonce=100,
transaction={})
assert block.prev_hash == "----------------"
assert block.nonce == 100
def test_update_next_hash(self):
gen_block = block = Block.generate_genasis()
block = Block.generate_block(last_block=gen_block,
nonce=100,
transaction={})
block2 = Block.generate_block(last_block=gen_block,
nonce=100,
transaction={})
block.update_next_hash(block2.hash)
assert block.next_hash == block2.hash
def generate_block(self, last_block_hash, proof_of_work, transaction):
""" generate a block and add it to the chain"""
b = Block(id=self.last_block.id + 1,
prev_hash=last_block_hash,
proof_no=proof_of_work,
data=transaction);
self.transactions = []
self.blocks.append(b)
return b
def test_create_genasis_block(self):
block = Block.generate_genasis()
assert block.prev_hash == "########"
assert block.hash == "----------------"
def test_to_json(self):
gen_block = Block.generate_genasis().to_json()
print(gen_block)
def test_to_string(self):
gen_block = Block.generate_genasis().to_string()
assert gen_block == "id = 0 , hash = ---------------- , prev_hash = ######## , next_hash = None , nonce = None , permission = None , data = None"
print(gen_block)