private void CheckTemplate <T>(BaseChecksum <T> check, string fileName, TestKind kind, T expected)
{
check.Reset();
try
{
string filePath = Path.Combine(TestSetup.SampleDir, fileName);
using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
switch (kind)
{
case TestKind.Array:
{
int bytesRead = 0;
byte[] buffer = new byte[64 * 1024];
do
{
bytesRead = fs.Read(buffer, 0, buffer.Length);
check.Append(buffer, 0, bytesRead);
}while (0 < bytesRead);
}
break;
case TestKind.Span:
{
int bytesRead = 0;
byte[] buffer = new byte[64 * 1024];
do
{
bytesRead = fs.Read(buffer, 0, buffer.Length);
check.Append(buffer.AsSpan(0, bytesRead));
}while (0 < bytesRead);
}
break;
case TestKind.Stream:
check.Append(fs);
break;
}
}
Console.WriteLine($"(Check) Expected checksum of {fileName} : 0x{expected:X16}");
Console.WriteLine($"(Check) Calculated checksum of {fileName} : 0x{check.Checksum:X16}");
Assert.AreEqual(expected, check.Checksum);
}
finally
{
check.Reset();
}
}
private void ResetTemplate <T>(BaseChecksum <T> check, string firstFileName, string secondFileName)
{
try
{
// Get first cheksum
check.Reset();
string firstFilePath = Path.Combine(TestSetup.SampleDir, firstFileName);
using (FileStream fs = new FileStream(firstFilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
check.Append(fs);
}
T firstCheck = check.Checksum;
// Get concat cheksum
string secondFilePath = Path.Combine(TestSetup.SampleDir, secondFileName);
using (FileStream fs = new FileStream(secondFilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
check.Append(fs);
}
T concatCheck = check.Checksum;
// Reset and get concat checksum again
check.Reset(firstCheck);
using (FileStream fs = new FileStream(secondFilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
check.Append(fs);
}
T actualCheck = check.Checksum;
Console.WriteLine($"(Check) Expected checksum : 0x{concatCheck:X16}");
Console.WriteLine($"(Check) Calculated checksum : 0x{actualCheck:X16}");
Assert.AreEqual(concatCheck, actualCheck);
}
finally
{
check.Reset();
}
}