def test_market_acct_simple(market: OneSidedMarket):
offer = market.offer(20, 10, 'A')
market.accept_offer(offer, 'B')
assert market.traded_energy['A'] == offer.energy
assert market.traded_energy['B'] == -offer.energy
assert market.bought_energy('A') == 0
assert market.bought_energy('B') == offer.energy
assert market.sold_energy('A') == offer.energy
assert market.sold_energy('B') == 0
def test_market_acct_multiple(market: OneSidedMarket):
offer1 = market.offer(10, 20, 'A')
offer2 = market.offer(10, 10, 'A')
market.accept_offer(offer1, 'B')
market.accept_offer(offer2, 'C')
assert market.traded_energy['A'] == offer1.energy + offer2.energy == 30
assert market.traded_energy['B'] == -offer1.energy == -20
assert market.traded_energy['C'] == -offer2.energy == -10
assert market.bought_energy('A') == 0
assert market.sold_energy('A') == offer1.energy + offer2.energy == 30
assert market.bought_energy('B') == offer1.energy == 20
assert market.bought_energy('C') == offer2.energy == 10