public void OTFileCalcTableChecksumTest()
{
// construct OTFile, read from test font and get memory stream
OTFile target = new OTFile();
string FilePath = "TestData\\selawk.ttf";
target.ReadFromFile(FilePath);
System.IO.MemoryStream ms = target.GetMemoryStream();
// Selawik GPOS table has a checksum of 0x8969_4DB2
UInt32 expected = 0x8969_4DB2;
// GPOS offset: 0x7BC4; length: 0x114C;
UInt32 actual = OTFile.CalcTableCheckSum(ms, 0x7BC4, 0x114C);
Assert.AreEqual(actual, expected);
}