def test_ERC20(network, alice_wallet, alice_address, bob_wallet, bob_address,
OCEAN_address):
"""Tests an OCEAN token approval, allowance and transfers."""
token = BToken(OCEAN_address)
token.approve(bob_address, 0, from_wallet=alice_wallet)
# generating ERC20 Tokens, so the symbol is irrelevant
assert token.symbol() == "DTT"
assert token.decimals() == 18
assert token.balanceOf(alice_address) > util.to_base_18(10.0)
assert token.balanceOf(bob_address) > util.to_base_18(10.0)
assert token.allowance(alice_address, bob_address) == 0
token.approve(bob_address, int(1e18), from_wallet=alice_wallet)
assert token.allowance(alice_address, bob_address) == int(1e18)
# alice sends all her OCEAN to Bob, then Bob sends it back
alice_OCEAN = token.balanceOf(alice_address)
bob_OCEAN = token.balanceOf(bob_address)
token.transfer(bob_address, alice_OCEAN, from_wallet=alice_wallet)
assert token.balanceOf(alice_address) == 0
assert token.balanceOf(bob_address) == (alice_OCEAN + bob_OCEAN)
token.transfer(alice_address, alice_OCEAN, from_wallet=bob_wallet)
assert token.balanceOf(alice_address) == alice_OCEAN
assert token.balanceOf(bob_address) == bob_OCEAN
def test_ERC20(network, alice_wallet, alice_address, bob_wallet, bob_address,
OCEAN_address):
token = BToken(OCEAN_address)
token.approve(bob_address, 0, from_wallet=alice_wallet)
assert token.symbol() == 'OCEAN'
assert token.decimals() == 18
assert token.balanceOf(alice_address) > util.to_base_18(10.0)
assert token.balanceOf(bob_address) > util.to_base_18(10.0)
assert token.allowance(alice_address, bob_address) == 0
token.approve(bob_address, int(1e18), from_wallet=alice_wallet)
assert token.allowance(alice_address, bob_address) == int(1e18)
# alice sends all her OCEAN to Bob, then Bob sends it back
alice_OCEAN = token.balanceOf(alice_address)
bob_OCEAN = token.balanceOf(bob_address)
token.transfer(bob_address, alice_OCEAN, from_wallet=alice_wallet)
assert token.balanceOf(alice_address) == 0
assert token.balanceOf(bob_address) == (alice_OCEAN + bob_OCEAN)
token.transfer(alice_address, alice_OCEAN, from_wallet=bob_wallet)
assert token.balanceOf(alice_address) == alice_OCEAN
assert token.balanceOf(bob_address) == bob_OCEAN
