public void ReadPricesForCusips_LeadingLineIsBalnk_Failure()
{
// Arrange
const string expectedMsg = "First line of Feed is not a cusip";
const int expectedLineCount = 1;
var feed = @"
A2345678
123.456
";
var byteArray = Encoding.UTF8.GetBytes(feed);
using (var feedMem = new MemoryStream(byteArray))
using (var feedStream = new StreamReader(feedMem))
{
var proc = new CusipProcessor(feedStream);
// Act
var ex = Assert.Throws <FeedException>(() => proc.ReadCusip());
// Assert
Assert.Equal(expectedMsg, ex.Message);
Assert.Equal(expectedLineCount, ex.CurrentLineCountOfException);
Assert.True(string.IsNullOrEmpty(ex.LineOfException));
}
}
public void ReadPricesForCusips_LastLineIsNotBalnk_Successful()
{
// Arrange
var feed = @"A2345678
123.456
B2345678
234.567
235.678
C2345678
345.678
346.789
347.89
348.901";
var byteArray = Encoding.UTF8.GetBytes(feed);
var cusipPricesDic = new Dictionary <string, decimal>();
using (var feedMem = new MemoryStream(byteArray))
using (var feedStream = new StreamReader(feedMem))
{
var proc = new CusipProcessor(feedStream);
var cusip = proc.ReadCusip();
// Act
var cusipPrices = proc.ReadPricesForCusips(cusip);
foreach (var clp in cusipPrices)
{
cusipPricesDic.Add(clp.Cusip, clp.Price);
}
// Assert
Assert.Equal(123.456m, cusipPricesDic["A2345678"]);
Assert.Equal(235.678m, cusipPricesDic["B2345678"]);
Assert.Equal(348.901m, cusipPricesDic["C2345678"]);
}
}
public void ReadPricesForCusips_FeedFileContainsOneCusipAndNoPrices_Failure()
{
// Arrange
var feed = "A2345678";
var byteArray = Encoding.UTF8.GetBytes(feed);
using (var feedMem = new MemoryStream(byteArray))
using (var feedStream = new StreamReader(feedMem))
{
var proc = new CusipProcessor(feedStream);
var cusip = proc.ReadCusip();
// Act
var cusipPrices = proc.ReadPricesForCusips(cusip);
var isCusipPrice = cusipPrices.GetEnumerator().MoveNext();
// Assert
Assert.False(isCusipPrice);
}
}
public void Readcusip_FileIsEmptyError_Failure()
{
// Arrange
var feed = " ";
var byteArray = Encoding.UTF8.GetBytes(feed);
using (var feedMem = new MemoryStream(byteArray))
using (var feedStream = new StreamReader(feedMem))
{
var proc = new CusipProcessor(feedStream);
// Act
var ex = Assert.Throws <FeedException>(proc.ReadCusip);
// Assert
Assert.Equal("First line of Feed is not a cusip", ex.Message);
Assert.Equal(1, ex.CurrentLineCountOfException);
Assert.Equal(feed, ex.LineOfException);
}
}
public void ReadPricesForCusips_MiddleLineIsBalnk_Failure()
{
// Arrange
var feed = @"A2345678
123.456
B2345678
234.567
235.678
C2345678
345.678
346.789
347.89
348.901
";
var byteArray = Encoding.UTF8.GetBytes(feed);
var cusipPricesDic = new Dictionary <string, decimal>();
using (var feedMem = new MemoryStream(byteArray))
using (var feedStream = new StreamReader(feedMem))
{
var proc = new CusipProcessor(feedStream);
var cusip = proc.ReadCusip();
var cusipPrices = proc.ReadPricesForCusips(cusip);
// Act
var ex = Assert.Throws <FeedException>(() => {
foreach (var clp in cusipPrices)
{
cusipPricesDic.Add(clp.Cusip, clp.Price);
}
});
// Assert
Assert.Equal("A blank line in the middle of the file indicates a corrupt Feed file", ex.Message);
Assert.Equal(7, ex.CurrentLineCountOfException);
Assert.True(string.IsNullOrEmpty(ex.LineOfException));
}
}
static void Main(string[] args)
{
var dataFile1 = @"Data\Feed1Good.txt";
using (var cusipPriceSr = new StreamReader(dataFile1))
{
try
{
var proc = new CusipProcessor(cusipPriceSr);
proc.CusipPriceHandler += ProcCusipPriceHandler;
var t = proc.ProcessFeedFile();
// Something else can be done here
_ = t.Result; // Wait for the feed file to complete processesing
}
catch (FeedException ex)
{
Console.WriteLine();
Console.WriteLine($"System threw and exception. Problem in line in input file: {ex.CurrentLineCountOfException}");
if (!string.IsNullOrEmpty(ex.LineOfException))
{
Console.WriteLine($"Input Line of exception: \"{ex.LineOfException}\"");
}
Console.WriteLine(ex.Message);
Console.WriteLine();
}
catch (Exception ex)
{
Console.WriteLine();
Console.WriteLine($"{ex.GetType().Name}. {ex.Message}");
Console.WriteLine();
}
}
Console.WriteLine("Press the Enter key to exit");
Console.ReadKey();
}
public void ReadPricesForCusips_FeedFileContainsTwoCusipAndNoPrices_Failure()
{
// Arrange
var feed = @"A2345678
B2345678";
var byteArray = Encoding.UTF8.GetBytes(feed);
using (var feedMem = new MemoryStream(byteArray))
using (var feedStream = new StreamReader(feedMem))
{
var proc = new CusipProcessor(feedStream);
var cusip = proc.ReadCusip();
// Act
var cusipPrices = proc.ReadPricesForCusips(cusip);
var ex = Assert.Throws <FeedException>(() => cusipPrices.GetEnumerator().MoveNext());
// Assert
Assert.Equal("Cusip A2345678 contains no price value", ex.Message);
Assert.Equal(2, ex.CurrentLineCountOfException);
Assert.Equal("B2345678", ex.LineOfException);
}
}