public async Task Buy_PortfolioNotExists() { Func <HourlyShareRate> func = () => { return(new HourlyShareRate { Rate = 20.00M }); }; TradeModel model = new TradeModel { Action = "BUY", NoOfShares = 10, PortfolioId = 1, Symbol = "SIM" }; // Arrange _exchangeContext.Setup(p => p.Set <Trade>().Add(It.IsAny <Trade>())); _exchangeContext.Setup(p => p.SaveChangesAsync(It.IsAny <CancellationToken>())).ReturnsAsync(1); // Act Trade trade = await _tradeRepository.Buy(model, func); // Assert Assert.NotNull(trade); Assert.AreEqual(trade.Symbol, model.Symbol); Assert.AreEqual(trade.PortfolioId, model.PortfolioId); Assert.AreEqual(trade.NoOfShares, model.NoOfShares); Assert.AreEqual(trade.Price, 20.00M); }