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add test coverage to stream scanning

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EliotJones 2025-07-05 15:52:43 -05:00 committed by BobLd
parent 0586713da3
commit f099dd5827
1 changed files with 69 additions and 1 deletions
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70
src/UglyToad.PdfPig.Tests/Tokenization/Scanner/CoreTokenScannerTests.cs
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@ -191,8 +191,76 @@ endobj";
AssertCorrectToken<NameToken, string>(tokens[3], "F1");
AssertCorrectToken<NumericToken, double>(tokens[4], 8);
AssertCorrectToken<OperatorToken, string>(tokens[5], "Tf");
}
[Fact]
public void SkipsCommentsInStreams()
{
const string content =
"""
% 641 0 obj
<<
/Type /Encoding
/Differences [16/quotedblleft/quotedblright 21/endash 27/ff/fi/fl/ffi 39/quoteright/parenleft/parenright 43/plus/comma/hyphen/period/slash/zero/one/two/three/four/five/six/seven/eight/nine/colon 64/at/A/B/C/D/E/F/G/H/I/J/K/L/M/N/O/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft 93/bracketright 97/a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/braceleft 125/braceright 225/aacute 232/egrave/eacute 252/udieresis]
>>
% 315 0 obj
<<
/Type /Font
/Subtype /Type1
/BaseFont /IXNPPI+CMEX10
/FontDescriptor 661 0 R
/FirstChar 80
/LastChar 88
/Widths 644 0 R
/ToUnicode 699 0 R
>>
% 306 0 obj
<<
/Type /Font
/Subtype /Type1
/BaseFont /MSNKTF+CMMI10
/FontDescriptor 663 0 R
/FirstChar 58
/LastChar 119
/Widths 651 0 R
/ToUnicode 700 0 R
>>
""";
var tokens = new List<IToken>();
var scanner = new CoreTokenScanner(
StringBytesTestConverter.Convert(content, false).Bytes,
true,
isStream: true);
while (scanner.MoveNext())
{
tokens.Add(scanner.CurrentToken);
}
Assert.Equal(3, tokens.Count);
Assert.All(tokens, x => Assert.IsType<DictionaryToken>(x));
tokens.Clear();
var nonStreamScanner = new CoreTokenScanner(
StringBytesTestConverter.Convert(content, false).Bytes,
true,
isStream: false);
while (nonStreamScanner.MoveNext())
{
tokens.Add(nonStreamScanner.CurrentToken);
}
Assert.Equal(6, tokens.Count);
Assert.Equal(3, tokens.OfType<CommentToken>().Count());
Assert.Equal(3, tokens.OfType<DictionaryToken>().Count());
}
private static void AssertCorrectToken<T, TData>(IToken token, TData expected) where T : IDataToken<TData>
{
var cast = Assert.IsType<T>(token);