def test_difficulty_not_less_one():
last_block = Block(time.time_ns(), 'test_last_hash', 'test_hash',
'test_data', 1, 0)
time.sleep(MINE_RATE / SECONDS)
mined_block = Block.mine_block(last_block, 'new')
assert mined_block.difficulty == 1
def test_mined_difficulty_limits_at_1():
last_block = Block(time(), 'test_last_hash', 'test_hash', 'test_data', 1,
0)
sleep(MINE_RATE)
mined_block = Block.mine_block(last_block, 'bar')
assert mined_block.difficulty == 1
def test_mined_block_difficulty_limits_at_1():
last_block = Block(time.time_ns(), 'test_last_hash', 'test_hash',
'test_data', 1, 0)
time.sleep(MINE_RATE / SECONDS)
mined_block = Block.mine_block(last_block, 'bar')
assert mined_block.difficulty == 1
def test_limit_mined_block_difficulty_to_1():
last_block = Block(time.time_ns(), "test_last_hash", "test_hash",
"test_data", 1, 0)
time.sleep(MINE_RATE / SECONDS)
mined_block = Block.mine_block(last_block, "bar")
assert mined_block.difficulty == 1
def test_quickly_mined_block_difficulty_limits_at_lower_difficulty():
last_block = Block(time.time_ns(), 'test_last_hash', 'test_hash', 'foo',
LOWER_DIFFICULTY, 0)
time.sleep(MINE_RATE / SECONDS)
mined_block = Block.mine_block(last_block, 'bar')
assert mined_block.difficulty == LOWER_DIFFICULTY
def test_adjust_difficulty_limits_at_1():
last_block = Block(time.time_ns(), "test_previous_hash", "test_hash",
"test_data", 1, 0)
time.sleep(MINE_RATE / SECONDS)
mined_block = Block.mine(last_block, "bar")
assert mined_block.difficulty == 1
def test_lowest_mining_difficulty():
last_block = Block(time.time_ns(), 'test-last_hash', 'test-hash',
'test-data', 1, 0)
time.sleep(MINE_RATE / SECONDS)
mined_block = Block.mine_block(last_block, 'bar')
assert mined_block.difficulty == 1 #ensure that it isnt lower than 1
def test_mined_block_minimum_difficulty():
last_block = Block(time_ns(), 'test_last_hash', 'test_hash', 'test_data',
1, 0)
sleep(MINE_RATE / SECONDS)
mined_block = Block.mine_block(last_block, 'bar')
assert last_block.difficulty == mined_block.difficulty
def test_mine_block_difficulty_limits_at_1():
# Create a mined block with lowest possible difficulty (1)
last_block = Block(time.time_ns(), "test_last_hash", "test_hash",
"test-data", 1, 0)
time.sleep(DELAY)
mined_block = Block.mine_block(last_block, "bar")
assert mined_block.difficulty == 1
def test_mined_block_difficulty_limits_at_1():
last_block = Block(time.time_ns(),
last_hash='test_hash',
hash='test_last_hash',
data='test_nonce',
difficulty=1,
nonce=0)
time.sleep(MINE_RATE / SECONDS)
mine_block = Block.mine_block(last_block, 'test2')
assert mine_block.difficulty == 1
def test_mined_block_diffculty_lower_bound_limit():
'''
Purpose:
Test that the difficulty to mine a block will never fall below its
lower bound.
'''
last_block = Block(time.time_ns(), 'test_last_hash', 'test_hash',
'test_data', 0, 1)
time.sleep(MINE_RATE / SECONDS)
mined_block = Block.mine_block(last_block, 'bar')
# Assert that difficulty is lower-bounded at 1 when a block's difficulty
# attempts to decrease below 1 after being mined too quickly.
assert (mined_block.difficulty == 1)
def test_mined_block_difficulty_limits_at_1():
"""Queremos simular la situación donde tenemos un bloque minado lentamente, para
ello necesitamos un last_block en el que la dificultad ya este en su nivel
más bajo (1)
"""
last_block = Block(timestamp=time.time_ns(),
last_hash='test_last_hash',
hash='test_hash',
data='test_data',
difficulty=1,
nonce=0)
time.sleep(MINE_RATE / SECONDS)
mined_block = Block.mine_block(last_block, 'bar')
assert mined_block.difficulty == 1
def test_mining_rate_1():
last_block = Block(time.time_ns(), "last_hash", "foo", "hash", 1, 0)
time.sleep(MINE_RATE / TIME_S)
mined_block = Block.mine_block(last_block, "bar")
assert mined_block.difficulty == 1
def test_mined_block_difficulty_static():
prev_block = Block(time.time_ns(), "test_prev_hash", "test_hash",
"test_data", 1, 0)
time.sleep(MINE_RATE / SECONDS)
mined_block = Block.mine_block(prev_block, "bar")
assert mined_block.difficulty == 1
