"""Tests for :class:`BaseContractWrapper`."""

import pytest
from eth_utils import to_checksum_address

from zero_ex.contract_artifacts import abi_by_name
from zero_ex.contract_wrappers._base_contract_wrapper import (
    BaseContractWrapper,
)


@pytest.fixture(scope="module")
def contract_wrapper(ganache_provider):
    """Get a BaseContractWrapper instance for testing."""
    return BaseContractWrapper(provider=ganache_provider)


def test_contract_wrapper__execute_method(
    accounts,
    contract_wrapper,  # pylint: disable=redefined-outer-name
    erc20_proxy_address,
    weth_address,  # pylint: disable=redefined-outer-name
):
    """Test :function:`BaseContractWrapper.execute` method."""
    acc1_allowance = contract_wrapper.execute_method(
        address=weth_address,
        abi=abi_by_name("WETH9"),
        method="allowance",
        view_only=True,
        args=(
            to_checksum_address(accounts[3]),
            to_checksum_address(erc20_proxy_address),
        ),
    )
    assert acc1_allowance == 0

    with pytest.raises(Exception):
        contract_wrapper.execute_method(
            address=weth_address,
            abi=abi_by_name("WETH9"),
            method="send",
            view_only=True,
            args=[
                to_checksum_address(accounts[3]),
                to_checksum_address(erc20_proxy_address),
            ],
        )