def test_participate_with_signed_address(chain, crowdsale, customer,
customer_id, token, private_key):
"""Buy tokens with a proper signed address."""
address_bytes = get_address_as_bytes(customer)
sign_data = sign(address_bytes, private_key)
time_travel(chain, crowdsale.functions.startsAt().call() + 1)
wei_value = to_wei(1, "ether")
assert crowdsale.functions.getState().call() == CrowdsaleState.Funding
crowdsale.functions.buyWithSignedAddress(customer_id, sign_data["v"],
sign_data["r_bytes"],
sign_data["s_bytes"]).transact({
"from":
customer,
"value":
wei_value
})
# We got credited
assert token.functions.balanceOf(customer).call() > 0
# We have tracked the investor id
events = crowdsale.events.Invested().createFilter(
fromBlock=0).get_all_entries()
assert len(events) == 1
e = events[0]
assert e["args"]["investor"] == customer
assert e["args"]["weiAmount"] == wei_value
assert e["args"]["customerId"] == customer_id
def test_right_pad(pad_contract):
"""Ensure we handle trailing zero in the address correctly."""
address_bytes = get_address_as_bytes(pad_contract.call().rightPad())
hash = bitcoin.bin_sha256(address_bytes)
val = pad_contract.call().getHashRightPad()
val = force_bytes(val)
assert hash == val
def test_left_pad(pad_contract):
"""Ensure we handle leading zero in the address correctly."""
address_bytes = get_address_as_bytes(
pad_contract.functions.leftPad().call())
hash = bitcoin.bin_sha256(address_bytes)
val = pad_contract.functions.getHashLeftPad().call()
val = to_bytes(val)
assert hash == val
def test_participate_bad_signature(chain, crowdsale, customer, customer_id,
token):
"""Investment does not happen with a bad signature.."""
address_bytes = get_address_as_bytes(customer)
sign_data = sign(address_bytes, private_key)
time_travel(chain, crowdsale.call().startsAt() + 1)
wei_value = to_wei(1, "ether")
assert crowdsale.call().getState() == CrowdsaleState.Funding
sign_data["s_bytes"] = b'ABC' # Corrupt signature data
with pytest.raises(TransactionFailed):
crowdsale.transact({
"from": customer,
"value": wei_value
}).buyWithSignedAddress(customer_id, sign_data["v"],
sign_data["r_bytes"], sign_data["s_bytes"])