mirror of https://github.com/qpdf/qpdf.git
57 lines
2.1 KiB
Perl
57 lines
2.1 KiB
Perl
#!/usr/bin/env perl
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require 5.008;
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use warnings;
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use strict;
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use Digest::MD5;
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use File::Copy;
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unshift(@INC, '.');
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require qpdf_test_helpers;
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chdir("qpdf") or die "chdir testdir failed: $!\n";
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require TestDriver;
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cleanup();
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my $td = new TestDriver('specialized-filter');
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my $n_tests = 5;
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my $n_compare_pdfs = 1;
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# The PDF file was submitted on bug #83 on github. All the PNG filters
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# are exercised. The test suite does not exercise PNG predictors with
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# LZW because I don't have a way to create such a file, but it's very
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# likely that it will work since the handling of the PNG filters is
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# separate from the regular decompression.
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$td->runtest("decode png-filtering",
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{$td->COMMAND => "qpdf --static-id" .
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" --compress-streams=n --decode-level=generalized" .
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" png-filters.pdf a.pdf"},
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{$td->STRING => "", $td->EXIT_STATUS => 0});
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$td->runtest("check output",
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{$td->FILE => "a.pdf"},
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{$td->FILE => "png-filters-decoded.pdf"});
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compare_pdfs($td, "png-filters.pdf", "a.pdf");
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$td->runtest("stream with tiff predictor",
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{$td->COMMAND => "qpdf --check tiff-predictor.pdf"},
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{$td->FILE => "tiff-predictor.out",
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$td->EXIT_STATUS => 0},
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$td->NORMALIZE_NEWLINES);
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# TC:SF_FlateLzwDecode PNG filter
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# PDF:Table 8:Columns
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# The test file is invalid as it does not actually use one column (as is implied by the missing
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# key). However png-filters-1-column.pdf is the same file with /Columns explicitely set to 1,
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# and displays the same as png-filters-no-columns.pdf and png-filters-no-columns-decoded.pdf.
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$td->runtest("decode flate no /Columns",
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{$td->COMMAND => "qpdf --static-id --compress-streams=n --decode-level=all" .
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" png-filters-no-columns.pdf a.pdf"},
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{$td->STRING => "", $td->EXIT_STATUS => 0},
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$td->NORMALIZE_NEWLINES);
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$td->runtest("check output",
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{$td->FILE => "a.pdf"},
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{$td->FILE => "png-filters-no-columns-decoded.pdf"});
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cleanup();
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$td->report(calc_ntests($n_tests, $n_compare_pdfs));
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