internal static OTFile GetOTFile_CambriaTtc()
{
string FilePath = "TestData\\CAMBRIA.TTC";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
internal static OTFile GetOTFile_SourceHanSans_Regular()
{
string FilePath = "TestData\\SourceHanSans-Regular.ttc";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
internal static OTFile GetOTFile_CharisSILRegular()
{
string FilePath = "TestData\\CharisSIL-R.ttf";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
public void OTFile_ReadFromFileAndGetMemoryStream()
{
// construct OTFile and read from test font
OTFile target = new OTFile();
string FilePath = "TestData\\selawk.ttf";
target.ReadFromFile(FilePath);
// Get memory stream and take sample
System.IO.MemoryStream ms = target.GetMemoryStream();
ms.Seek(0, System.IO.SeekOrigin.Begin);
byte[] data = new byte[32];
int cb = ms.Read(data, 0, 32);
Assert.IsTrue((cb == 32), "Error: Read from memory stream returned less data than expected");
// Create comparison data and compare
byte[] expectedData = { 0, 1, 0, 0, 0, 0x0F, 0, 0x80, 0, 3, 0, 0x70, 0x44, 0x53, 0x49, 0x47, 0xF0, 0x54, 0x3E, 0x26, 0, 0, 0x91, 0xE4, 0, 0, 0x1A, 0xDC, 0x47, 0x44, 0x45, 0x46 };
bool match = true;
for (int i = 0; i < data.Length; i++)
{
if (data[i] != expectedData[i])
{
match = false;
break;
}
}
Assert.IsTrue(match, "Error: Read from memory stream returned unexpected data");
}
internal static OTFile GetOTFile_Skia()
{
string FilePath = "TestData\\Skia.ttf";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
internal static OTFile GetOTFile_ScheherazadeRegular()
{
string FilePath = "TestData\\Scheherazade-Regular.ttf";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
internal static OTFile GetOTFile_SelawikRegular()
{
string FilePath = "TestData\\selawk.ttf";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
internal static OTFile GetOTFile_CharisSILBoldItalic()
{
string FilePath = "TestData\\CharisSIL-BI.ttf";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
internal static OTFile GetOTFile_NotoSansMalayalamRegular()
{
string FilePath = "TestData\\NotoSansMalayalam-Regular.ttf";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
internal static OTFile GetOTFile_NotoNastaliqUrduRegular()
{
string FilePath = "TestData\\NotoNastaliqUrdu-Regular.ttf";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
internal static OTFile GetOTFile_BungeeColorRegular()
{
string FilePath = "TestData\\BungeeColor-Regular_colr_Windows.TTF";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
public void OTFileOpenTest_ReadSingleFontOffsetTable()
{
OTFile target = new OTFile();
string FilePath = "TestData\\selawk.ttf";
try
{
target.ReadFromFile(FilePath);
}
catch (Exception)
{
// unexpected exception
}
Assert.IsTrue(target.SfntVersionTag == (OTTag)(0x00010000), "Error: unexpected sfnt tag");
OTFont f = target.GetFont(0);
Assert.IsTrue(f.OffsetInFile == 0, "Error: unexpected font offset");
Assert.IsTrue(f.SfntVersionTag == (OTTag)(0x00010000), "Error: unexpected font value");
Assert.IsFalse(f.IsWithinTtc, "Error: unexpected font value");
Assert.IsTrue(f.OffsetTable.OffsetInFile == 0, "Error: unexpected offset table offset");
Assert.IsTrue(f.OffsetTable.SfntVersion == (OTTag)(0x00010000), "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.NumTables == 15, "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.SearchRange == 0x0080, "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.EntrySelector == 0x0003, "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.RangeShift == 0x0070, "Error: unexpected font offset table value");
}
internal static OTFile GetOTFile_AndikaRegular()
{
string FilePath = "TestData\\Andika-R.TTF";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
internal static OTFile GetOTFile_ADMSB()
{
string FilePath = "TestData\\ADMSB___.TTF";
OTFile f = new OTFile();
f.ReadFromFile(FilePath);
return f;
}
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);
}
public void OTFileOpenTest_ReadTtcHeaderAndOffsetTables()
{
OTFile target = new OTFile();
string FilePath = "TestData\\CAMBRIA.TTC";
try
{
target.ReadFromFile(FilePath);
}
catch (Exception)
{
// unexpected exception
}
Assert.IsTrue(target.SfntVersionTag == (OTTag)("ttcf"), "Error: unexpected sfnt tag");
// check one detail of ttc header
Assert.IsTrue(target.TtcHeader.DSIGOffset == 0x0018AB54, "Error: unexpected TtcHeader value");
Assert.IsTrue(target.NumFonts == 2, "Error: unexpected OTFile value");
Assert.IsTrue(target.Length == 1622732, "Error: unexpected OTFile value");
Assert.IsTrue(target.IsSupportedFileType, "Error: unexpected OTFile value");
Assert.IsTrue(target.IsCollection, "Error: unexpected OTFile value");
// now check that offset tables of both fonts are read
OTFont f = target.GetFont(0);
Assert.IsTrue(f.OffsetInFile == 0x20, "Error: unexpected font offset");
Assert.IsTrue(f.SfntVersionTag == (OTTag)(0x00010000), "Error: unexpected font value");
Assert.IsTrue(f.IsWithinTtc, "Error: unexpected font value");
Assert.IsTrue(f.OffsetTable.OffsetInFile == 0x20, "Error: unexpected offset table offset");
Assert.IsTrue(f.OffsetTable.SfntVersion == (OTTag)(0x00010000), "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.NumTables == 20, "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.SearchRange == 0x0100, "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.EntrySelector == 0x0004, "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.RangeShift == 64, "Error: unexpected font offset table value");
f = target.GetFont(1);
Assert.IsTrue(f.OffsetInFile == 0x16C, "Error: unexpected font offset");
Assert.IsTrue(f.SfntVersionTag == (OTTag)(0x00010000), "Error: unexpected font value");
Assert.IsTrue(f.IsWithinTtc, "Error: unexpected font value");
Assert.IsTrue(f.OffsetTable.OffsetInFile == 0x16C, "Error: unexpected offset table offset");
Assert.IsTrue(f.OffsetTable.SfntVersion == (OTTag)(0x00010000), "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.NumTables == 21, "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.SearchRange == 0x0100, "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.EntrySelector == 0x0004, "Error: unexpected font offset table value");
Assert.IsTrue(f.OffsetTable.RangeShift == 80, "Error: unexpected font offset table value");
}
public void OTFileOpenTest_InvalidFile_3Bytes()
{
bool caughtExpectedException = false; // will set to true if expected exception is caught
OTFile target = new OTFile();
string FilePath = "TestData\\InvalidFile_3Bytes.ttf";
try
{
target.ReadFromFile(FilePath);
}
catch (OTFileParseException)
{
caughtExpectedException = true;
}
catch (Exception)
{
// unexpected exception
}
Assert.IsTrue(caughtExpectedException, "Error: expected exception not caught");
}
public void OTFileOpenTest_UnsupportedSfntTag()
{
OTFile target = new OTFile();
bool caughtExpectedException = false; // will set to true if expected exception is caught
// test for unrecognized sfnt tag
string FilePath = "TestData\\InvalidFile_4Bytes.ttf";
try
{
target.ReadFromFile(FilePath);
}
catch (OTFileParseException)
{
caughtExpectedException = true;
}
catch (Exception)
{
// unexpected exception
}
Assert.IsTrue(caughtExpectedException, "Error: expected exception not caught");
}
public void OTFileGetFileInfoTest()
{
OTFile target = new OTFile();
string FilePath = "TestData\\selawk.ttf";
try
{
target.ReadFromFile(FilePath);
}
catch (Exception)
{
// unexpected exception
}
FileInfo expected = new FileInfo(FilePath);
FileInfo actual = target.GetFileInfo();
Assert.AreEqual(expected.Name, actual.Name);
Assert.IsTrue(actual.Length == expected.Length);
Assert.IsTrue(actual.Name == "selawk.ttf");
Assert.IsTrue(actual.Extension == ".ttf");
Assert.IsTrue(actual.DirectoryName == Directory.GetCurrentDirectory() + "\\TestData");
}