public async Task ProcessAsync_Should_Return_Symbols_Of_One_Exchange_With_LargestGain()
{
// Arrange
var stocks = new List <Stock>
{
new Stock
{
Exchange = "XNYS",
Close = 2,
Open = 1,
Symbol = "EVR"
},
new Stock
{
Exchange = "XNYS",
Close = 3,
Open = 1,
Symbol = "MSFT"
}
};
_serviceMock.Setup(s => s.GetStockPricessByDateAsync(It.IsAny <DateTime>())).ReturnsAsync(stocks);
var sut = new StockPriceProcessor(_serviceMock.Object);
// Act
var response = await sut.ProcessAsync(_date);
// Assert
Assert.Single(response);
Assert.Equal("XNYS", response.First().Key);
Assert.Single(response["XNYS"]);
Assert.Equal("MSFT", response["XNYS"].First());
}
public async Task ProcessAsync_Should_Return_Multiple_Symbols_Of_Multiple_Exchanges_With_LargestGain()
{
// Arrange
var stocks = new List <Stock>
{
new Stock
{
Exchange = "XNYS",
Close = 3,
Open = 1,
Symbol = "EVR"
},
new Stock
{
Exchange = "XNYS",
Close = 4,
Open = 2,
Symbol = "BP"
},
new Stock
{
Exchange = "XNAS",
Close = 5,
Open = 1,
Symbol = "MSFT"
},
new Stock
{
Exchange = "XNAS",
Close = 4,
Open = 1,
Symbol = "AAPL"
}
};
_serviceMock.Setup(s => s.GetStockPricessByDateAsync(It.IsAny <DateTime>())).ReturnsAsync(stocks);
var sut = new StockPriceProcessor(_serviceMock.Object);
// Act
var response = await sut.ProcessAsync(_date);
// Assert
Assert.Equal(2, response.Count);
Assert.True(response.ContainsKey("XNYS"));
Assert.Equal(2, response["XNYS"].Count);
Assert.Contains("EVR", response["XNYS"]);
Assert.Contains("BP", response["XNYS"]);
Assert.True(response.ContainsKey("XNAS"));
Assert.Single(response["XNAS"]);
Assert.Equal("MSFT", response["XNAS"].First());
}
public async Task ProcessAsync_Should_Return_EmptyList_When_There_Is_No_Stock_For_A_Day()
{
// Arrange
_serviceMock.Setup(s => s.GetStockPricessByDateAsync(It.IsAny <DateTime>())).ReturnsAsync(new List <Stock>());
var sut = new StockPriceProcessor(_serviceMock.Object);
// Act
var response = await sut.ProcessAsync(_date);
// Assert
Assert.Empty(response);
}