public void Trade()
{
foreach (var stockSignal in _stockSignals)
{
var assessment = stockSignal.Assess();
if (assessment.Recommendation > 0)
{
const int amount = 1;
var price = _stockbroker.GetPrice(assessment.Symbol) * amount;
if (Balance >= price)
{
Balance -= _stockbroker.Buy(assessment.Symbol, amount);
_portfolio.Add(assessment.Symbol, amount);
}
}
else if (assessment.Recommendation < 0)
{
const int amount = 1;
if (_portfolio.Has(assessment.Symbol, amount))
{
Balance += _stockbroker.Sell(assessment.Symbol, amount);
_portfolio.Remove(assessment.Symbol, amount);
}
}
}
}
public void Trade_SellSignalReceived_SellsStock()
{
// Arrange
_mockSignal.Assess()
.Returns(new Assessment {
Recommendation = -1, Symbol = "NOK"
});
_mockBroker.GetPrice("NOK")
.Returns(4);
_mockPortfolio.Has("NOK", 1)
.Returns(true);
_mockBroker.Sell("NOK", 1).Returns(4);
// Act
_trader.Register(_mockSignal);
_trader.Trade();
// Assert
_mockBroker.Received().Sell("NOK", 1);
_trader.Balance.Should().Be(4);
_mockPortfolio.Received().Remove("NOK", 1);
}