def test_halted(chain, web3, kyc_presale, customer, customer_id, private_key,
preico_starts_at, team_multisig, pricing_info, signer_address):
"""We cannot buy after a halt."""
# Check KYC crowdsale is good to go
time_travel(chain, kyc_presale.call().startsAt() + 1)
# Check the setup looks good
assert kyc_presale.call().getState() == CrowdsaleState.Funding
assert kyc_presale.call().signerAddress().lower() == signer_address.lower()
# Do a test buy for 0.5 ETH and check it is good token wise
wei_value = to_wei(1.0, "ether")
# KYC limits for this participant: 0...1 ETH
kyc_payload = pack_kyc_pricing_dataframe(customer, customer_id, 0,
1 * 10000, pricing_info)
signed_data = sign(kyc_payload, private_key)
kyc_presale.transact({"from": team_multisig}).halt()
with pytest.raises(TransactionFailed):
kyc_presale.transact({
"from": customer,
"value": wei_value,
"gas": 2222333
}).buyWithKYCData(kyc_payload, signed_data["v"],
signed_data["r_bytes"], signed_data["s_bytes"])
def test_kyc_participate_over_payment(chain, kyc_presale, customer,
customer_id, private_key,
preico_starts_at, team_multisig,
pricing_info):
"""KYC'ed participant does not fulfill his minimum limit."""
# Check KYC crowdsale is good to go
time_travel(chain, kyc_presale.call().startsAt() + 1)
wei_value = to_wei(1, "ether")
# KYC limits for this participant: 0...1 ETH
kyc_payload = pack_kyc_pricing_dataframe(customer, customer_id, 0,
10 * 10000, pricing_info)
signed_data = sign(kyc_payload, private_key) # Use bad private key
kyc_presale.transact({
"from": customer,
"value": wei_value,
"gas": 2222333
}).buyWithKYCData(kyc_payload, signed_data["v"], signed_data["r_bytes"],
signed_data["s_bytes"])
with pytest.raises(TransactionFailed):
wei_value = to_wei(10, "ether")
kyc_presale.transact({
"from": customer,
"value": wei_value,
"gas": 2222333
}).buyWithKYCData(kyc_payload, signed_data["v"],
signed_data["r_bytes"], signed_data["s_bytes"])
def test_kyc_participate_with_signed_address(chain, kyc_crowdsale, customer,
customer_id, kyc_token,
private_key, preico_starts_at,
pricing, team_multisig):
"""Buy tokens with a proper KYC payload."""
# Check KYC crowdsale is good to go
time_travel(chain, kyc_crowdsale.call().startsAt() + 1)
event_filter = kyc_crowdsale.events.Invested().createFilter(fromBlock=0)
# Check the setup looks good
assert kyc_crowdsale.functions.getState().call() == CrowdsaleState.Funding
assert kyc_crowdsale.functions.isFinalizerSane().call()
assert kyc_crowdsale.functions.isPricingSane().call()
assert kyc_crowdsale.functions.beneficiary().call() == team_multisig
assert kyc_token.functions.transferAgents(team_multisig).call() == True
# Do a test buy for 1 ETH and check it is good token wise
wei_value = to_wei(1, "ether")
tokens_per_eth = pricing.functions.calculatePrice(wei_value, wei_value, 0,
customer, 18).call()
assert tokens_per_eth == 10**18
assert kyc_crowdsale.functions.getTokensLeft().call() >= tokens_per_eth
assert kyc_token.functions.balanceOf(
team_multisig).call() >= tokens_per_eth
assert not kyc_crowdsale.functions.isBreakingCap(
wei_value, tokens_per_eth, wei_value, tokens_per_eth).call()
# KYC limits for this participant: 0...1 ETH
kyc_payload = pack_kyc_pricing_dataframe(customer, customer_id, 0,
1 * 10000, 1 * 10**18)
signed_data = sign(kyc_payload, private_key)
kyc_crowdsale.functions.buyWithKYCData(kyc_payload, signed_data["v"],
signed_data["r_bytes"],
signed_data["s_bytes"]).transact({
"from":
customer,
"value":
wei_value
})
# We got credited
assert kyc_token.functions.balanceOf(customer).call() > 0
assert kyc_crowdsale.functions.investedAmountOf(
customer).call() == 1 * 10**18
# We have tracked the investor id
events = event_filter.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.int
def test_roundtrip_kyc_data(kyc_deserializer, whitelisted_address):
"""We correctly encode data in Python side and decode it back in the smart contract."""
customer_id = uuid.uuid4()
dataframe = pack_kyc_pricing_dataframe(whitelisted_address, customer_id,
int(0.1 * 10000), int(9999 * 10000),
1)
tuple_value = kyc_deserializer.call().getKYCPayload(dataframe)
#
# Check that the output looks like what we did expect
#
assert tuple_value[0].lower() == whitelisted_address.lower()
# Do a raw integer comparison, because web3.py and UUID disagree about left padding zeroes
assert tuple_value[1] == customer_id.int
assert tuple_value[2] == 1000
assert tuple_value[3] == 99990000
def test_kyc_participate_with_signed_address(chain, web3, kyc_presale,
customer, customer_id,
private_key, preico_starts_at,
team_multisig, pricing_info,
signer_address):
"""Buy tokens with a proper KYC payload."""
# Check KYC crowdsale is good to go
time_travel(chain, kyc_presale.call().startsAt() + 1)
# No contributions yet
original_multisig_balance = web3.eth.getBalance(team_multisig)
# Check the setup looks good
assert kyc_presale.call().getState() == CrowdsaleState.Funding
assert kyc_presale.call().signerAddress().lower() == signer_address.lower()
# Do a test buy for 0.5 ETH and check it is good token wise
wei_value = to_wei(1.0, "ether")
# KYC limits for this participant: 0...1 ETH
kyc_payload = pack_kyc_pricing_dataframe(customer, customer_id, 0,
1 * 10000, pricing_info)
signed_data = sign(kyc_payload, private_key)
kyc_presale.transact({
"from": customer,
"value": wei_value,
"gas": 2222333
}).buyWithKYCData(kyc_payload, signed_data["v"], signed_data["r_bytes"],
signed_data["s_bytes"])
# Money lands in the multisig wallet
assert kyc_presale.call().investedAmountOf(customer) == 1 * 10**18
assert web3.eth.getBalance(team_multisig) > original_multisig_balance
# We have tracked the investor id
events = kyc_presale.pastEvents("Prepurchased").get()
assert len(events) == 1
e = events[0]
assert e["args"]["investor"].lower() == customer.lower()
assert e["args"]["weiAmount"] == wei_value
assert e["args"]["customerId"] == customer_id.int
assert e["args"]["pricingInfo"] == pricing_info
def test_kyc_participate_whitelist(chain, kyc_presale, customer, customer_id,
private_key, preico_starts_at,
team_multisig, pricing_info):
"""Early whitelist buyer gets through despite time checks."""
# Check KYC crowdsale is closed, too early
time_travel(chain, kyc_presale.call().startsAt() - 1)
assert kyc_presale.call().getState() == CrowdsaleState.PreFunding
# Do a test buy for 1 ETH and check it is good token wise
wei_value = to_wei(1, "ether")
# KYC limits for this participant: 0...1 ETH
kyc_payload = pack_kyc_pricing_dataframe(customer, customer_id, 0,
1 * 10000, pricing_info)
signed_data = sign(kyc_payload, private_key)
with pytest.raises(TransactionFailed):
kyc_presale.transact({
"from": customer,
"value": wei_value,
"gas": 2222333
}).buyWithKYCData(kyc_payload, signed_data["v"],
signed_data["r_bytes"], signed_data["s_bytes"])
# Whitelist this participant
kyc_presale.transact({
"from": team_multisig
}).setEarlyParicipantWhitelist(customer, True)
# Now we can buy despite the time limti
kyc_presale.transact({
"from": customer,
"value": wei_value,
"gas": 2222333
}).buyWithKYCData(kyc_payload, signed_data["v"], signed_data["r_bytes"],
signed_data["s_bytes"])
def test_kyc_participate_bad_signature(chain, kyc_presale, customer,
customer_id, private_key,
preico_starts_at, team_multisig,
pricing_info):
"""Investment does not happen with a bad signature.."""
# Check KYC crowdsale is good to go
time_travel(chain, kyc_presale.call().startsAt() + 1)
# Do a test buy for 1 ETH and check it is good token wise
wei_value = to_wei(1, "ether")
# KYC limits for this participant: 0...1 ETH
kyc_payload = pack_kyc_pricing_dataframe(customer, customer_id, 0,
1 * 10000, pricing_info)
signed_data = sign(kyc_payload, private_key + "x") # Use bad private key
with pytest.raises(TransactionFailed):
kyc_presale.transact({
"from": customer,
"value": wei_value,
"gas": 2222333
}).buyWithKYCData(kyc_payload, signed_data["v"],
signed_data["r_bytes"], signed_data["s_bytes"])
def test_kyc_participate_under_payment(chain, kyc_crowdsale, customer,
customer_id, kyc_token, private_key,
preico_starts_at, pricing,
team_multisig):
"""KYC'ed participant does not fulfill his minimum limit."""
# Check KYC crowdsale is good to go
time_travel(chain, kyc_crowdsale.call().startsAt() + 1)
# Do a test buy for 1 ETH and check it is good token wise
wei_value = to_wei(0.1, "ether")
# KYC limits for this participant: 0...1 ETH
kyc_payload = pack_kyc_pricing_dataframe(customer, customer_id,
int(0.5 * 10000), 1 * 10000, 1)
signed_data = sign(kyc_payload, private_key) # Use bad private key
with pytest.raises(TransactionFailed):
kyc_crowdsale.transact({
"from": customer,
"value": wei_value,
"gas": 2222333
}).buyWithKYCData(kyc_payload, signed_data["v"],
signed_data["r_bytes"], signed_data["s_bytes"])
def test_kyc_participate_with_different_price(chain, web3, kyc_crowdsale,
customer, customer_id, kyc_token,
private_key, preico_starts_at,
pricing, team_multisig):
"""The same user buys token with two different prices (as given by the server)."""
# Check KYC crowdsale is good to go
whitelisted_address = customer
time_travel(chain, kyc_crowdsale.call().startsAt() + 1)
start_multisig_total = web3.eth.getBalance(team_multisig)
# Check the setup looks good
assert kyc_crowdsale.call().getState() == CrowdsaleState.Funding
assert kyc_crowdsale.call().isFinalizerSane()
assert kyc_crowdsale.call().isPricingSane()
assert kyc_crowdsale.call().beneficiary() == team_multisig
assert kyc_token.call().transferAgents(team_multisig) == True
assert kyc_crowdsale.call().investedAmountOf(whitelisted_address) == 0
# Do a test buy for 1 ETH
wei_value = to_wei(1, "ether")
excepted_token_value = int(0.5 * 10**18)
price = 2 * 10**18 # wei per token
assert kyc_crowdsale.call().calculateTokens(wei_value,
price) == excepted_token_value
# Buy with price 1 token = 2 wei
kyc_payload = pack_kyc_pricing_dataframe(whitelisted_address, customer_id,
0, 1 * 10000, price)
signed_data = sign(kyc_payload, private_key)
unpacked = unpack_kyc_pricing_dataframe(kyc_payload)
assert unpacked["pricing_data"] == price
kyc_crowdsale.transact({
"from": whitelisted_address,
"value": wei_value,
"gas": 2222333
}).buyWithKYCData(kyc_payload, signed_data["v"], signed_data["r_bytes"],
signed_data["s_bytes"])
# We got credited
assert kyc_token.call().balanceOf(
whitelisted_address) == excepted_token_value
assert kyc_crowdsale.call().investedAmountOf(
whitelisted_address) == wei_value
# We have tracked the investor id
events = kyc_crowdsale.pastEvents("Invested").get()
assert len(events) == 1
e = events[0]
assert e["args"]["investor"].lower() == whitelisted_address.lower()
assert e["args"]["weiAmount"] == wei_value
assert e["args"]["customerId"] == customer_id.int
assert e["args"]["tokenAmount"] == excepted_token_value
# More tokens, different price this time
wei_value = to_wei(1, "ether")
new_excepted_token_value = int(0.25 * 10**18)
price = 4 * 10**18 # wei per token
# New transaction, increased per person cap to 2 ETH
kyc_payload = pack_kyc_pricing_dataframe(whitelisted_address, customer_id,
0, 2 * 10000, price)
signed_data = sign(kyc_payload, private_key)
kyc_crowdsale.transact({
"from": whitelisted_address,
"value": wei_value,
"gas": 333444
}).buyWithKYCData(kyc_payload, signed_data["v"], signed_data["r_bytes"],
signed_data["s_bytes"])
# We got credited
total = wei_value * 2
assert kyc_token.call().balanceOf(
whitelisted_address) == excepted_token_value + new_excepted_token_value
assert kyc_crowdsale.call().investedAmountOf(whitelisted_address) == total
assert web3.eth.getBalance(team_multisig) == start_multisig_total + total
# We have another event, this time with new price
events = kyc_crowdsale.pastEvents("Invested").get()
assert len(events) == 2
e = events[-1]
assert e["args"]["investor"].lower() == whitelisted_address.lower()
assert e["args"]["weiAmount"] == wei_value
assert e["args"]["customerId"] == customer_id.int
assert e["args"]["tokenAmount"] == new_excepted_token_value
