e61f23d001
* .gitignore migrations/0x_ganache_snapshot
* .gitignore new-ish Python contract wrappers
These should have been added back when we started generating these
wrappers.
* rm superfluous contract artifact in Python package
All of the contract artifacts were removed from the Python package
recently, because now they're copied from the monorepo/packages area as
an automated build step. Somehow this one artifact slipped through the
cracks.
* Eliminate circular dependency
This was preventing the Exchange wrapper from ever importing its
validator!
* Improve output of monorepo-level parallel script
- Capture stderr (and have it included in stdout) so that it doesn't
leak onto the console for commands that didn't actually fail.
- Include all error output in the Exception object (eliminate print
statement).
* Silence new versions of linters
Newer versions care about this stuff. Old versions didn't, and we don't
either.
* Support Rich Reverts via Web3.py middleware
* Fix bug in generated wrappers' bytes handling
`bytes.fromhex(bytes.decode('utf-8')` is just plain wrong. It would
work for some cases, but is not working when trying to fill orders with
the latest Exchange contract.
* Migrate to Exchange v3
* Fix typo in DevUtils documentation
* Include new contracts in docs
* Re-enable Python checks in CI
* Accept strings for bytes
* Fix CircleCI build artifacts for gen'd python
I swear the previous way was working before, but it wasn't working now,
so this fixes it.
* Accept a provider OR a Web3 object
In various places. This allows the caller to install middleware (which
in web3.py is installed on a Web3 object, not on a provider) before
executing any RPC calls, which is important for the case where one wants
to produce signatures locally before submitting to a remote node.
* wrapper base: don't assume there are accounts
* Eliminate some inline linter directives
* make CHANGELOGs be REVERSE chronological
* Update CHANGELOG entries and bump version numbers
* @0x/contract-addresses: Put addr's in JSON, not TS
This allows easier consumption by other languages. (Specifically, it
eliminates the overhead of keeping the Python addresses package in sync
with the TypeScript one.)
* sra_client.py: incl. docker in `./setup.py clean`
* sra_client.py: Migrate to protocol v3
Removed script that existed only to exclude runs of sra_client builds
(parallel_without_sra_client). Now `parallel` is used by CI,
re-including sra_client in CI checks.
* abi-gen/templates/Py: clarify if/else logic
In response to
https://github.com/0xProject/0x-monorepo/pull/2284#discussion_r342200906
* sra_client.py: Update CHANGELOG and bump version
* contract_addresses/setup.py: rm unnecessary rm
* json_schemas.py: corrections to dev dependencies
* In tests against deployment, also run doctests
* contract_wrappers example: rm xtra Order attribute
Thanks to @steveklebanoff for catching this.
https://github.com/0xProject/0x-monorepo/pull/2284#pullrequestreview-312065368
77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
"""Tests for ERC20Token wrapper."""
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from decimal import Decimal
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import pytest
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from zero_ex.contract_addresses import network_to_addresses, NetworkId
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from zero_ex.contract_wrappers import TxParams
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from zero_ex.contract_wrappers.erc20_token import ERC20Token
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MAX_ALLOWANCE = int("{:.0f}".format(Decimal(2) ** 256 - 1))
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@pytest.fixture(scope="module")
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def erc20_wrapper(ganache_provider):
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"""Get an instance of ERC20Token wrapper class for testing."""
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return ERC20Token(
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ganache_provider, network_to_addresses(NetworkId.GANACHE).ether_token
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)
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def test_erc20_wrapper__balance_of(
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accounts,
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erc20_wrapper, # pylint: disable=redefined-outer-name
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weth_instance, # pylint: disable=redefined-outer-name
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):
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"""Test getting baance of an account for an ERC20 token."""
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acc1_original_weth_balance = erc20_wrapper.balance_of.call(accounts[0])
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acc2_original_weth_balance = erc20_wrapper.balance_of.call(accounts[1])
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expected_difference = 1 * 10 ** 18
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weth_instance.functions.deposit().transact(
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{"from": accounts[0], "value": expected_difference}
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)
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weth_instance.functions.deposit().transact(
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{"from": accounts[1], "value": expected_difference}
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)
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acc1_weth_balance = erc20_wrapper.balance_of.call(accounts[0])
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acc2_weth_balance = erc20_wrapper.balance_of.call(accounts[1])
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assert (
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acc1_weth_balance - acc1_original_weth_balance == expected_difference
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)
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assert (
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acc2_weth_balance - acc2_original_weth_balance == expected_difference
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)
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def test_erc20_wrapper__approve(
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accounts,
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erc20_proxy_address,
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erc20_wrapper, # pylint: disable=redefined-outer-name
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):
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"""Test approving one account to spend balance from another account."""
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erc20_wrapper.approve.send_transaction(
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erc20_proxy_address,
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MAX_ALLOWANCE,
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tx_params=TxParams(from_=accounts[0]),
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)
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erc20_wrapper.approve.send_transaction(
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erc20_proxy_address,
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MAX_ALLOWANCE,
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tx_params=TxParams(from_=accounts[1]),
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)
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acc_1_weth_allowance = erc20_wrapper.allowance.call(
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accounts[0], erc20_proxy_address
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)
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acc_2_weth_allowance = erc20_wrapper.allowance.call(
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accounts[1], erc20_proxy_address
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)
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assert acc_1_weth_allowance == MAX_ALLOWANCE
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assert acc_2_weth_allowance == MAX_ALLOWANCE
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