def setUp(self):
self.market1 = MockMarket(price_currency="USD", amount_currency="BTC")
self.market1.set_mock_depth(depthUSDBTC)
self.market2 = MockMarket(price_currency="BTC", amount_currency="LTC")
self.market2.set_mock_depth(depthLTCBTC)
self.market3 = MockMarket(amount_currency="LTC", price_currency="USD")
self.market3.set_mock_depth(depthLTCUSD)
self.chain = MarketChain(self.market1, self.market2, self.market3)
