error-condition.test
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#!/usr/bin/env perl
require 5.008;
use warnings;
use strict;
unshift(@INC, '.');
require qpdf_test_helpers;
chdir("qpdf") or die "chdir testdir failed: $!\n";
require TestDriver;
cleanup();
my $td = new TestDriver('error-condition');
my $n_tests = 0;
# $n_tests incremented after initialization of badfiles below.
my @badfiles = ("not a PDF file", # 1
"no startxref", # 2
"bad primary xref offset", # 3
"invalid xref syntax", # 4
"invalid xref entry", # 5
"free table inconsistency", # 6
"no trailer dictionary", # 7
"bad secondary xref", # 8
"no /Size in trailer", # 9
"/Size not integer", # 10
"/Prev not integer", # 11
"/Size inconsistency", # 12
"bad {", # 13
"bad }", # 14
"bad ]", # 15
"bad >>", # 16
"dictionary errors", # 17
"bad )", # 18
"bad >", # 19
"invalid hexstring character", # 20
"invalid name token", # 21
"no /Length for stream dictionary", # 22
"/Length not integer", # 23
"expected endstream", # 24
"bad obj declaration (objid)", # 25
"bad obj declaration (generation)", # 26
"bad obj declaration (obj)", # 27
"expected endobj", # 28
"null in name", # 29
"invalid stream /Filter", # 30
"unknown stream /Filter", # 31
"obj/gen mismatch", # 32
"invalid stream /Filter and xref", # 33
"obj/gen in wrong place", # 34
"object stream of wrong type", # 35
"bad dictionary key", # 36
"space before xref", # 37
"startxref to space then eof", # 38
"stream lenth revocery overlapping", # 39
);
$n_tests += @badfiles + 8;
# Test 6 contains errors in the free table consistency, but we no
# longer have any consistency check for this since it is not important
# neither Acrobat nor other PDF viewers really care. Tests 12 and 28
# have error conditions that used to be fatal but are now considered
# non-fatal.
my %badtest_overrides = ();
for(6, 12..15, 17, 18..32, 34..37, 39)
{
$badtest_overrides{$_} = 0;
}
for (my $i = 1; $i <= scalar(@badfiles); ++$i)
{
my $status = $badtest_overrides{$i};
$status = 2 unless defined $status;
$td->runtest($badfiles[$i-1],
{$td->COMMAND => "test_driver 0 bad$i.pdf"},
{$td->FILE => "bad$i.out",
$td->EXIT_STATUS => $status},
$td->NORMALIZE_NEWLINES);
}
$td->runtest("Suppress warnings",
{$td->COMMAND => "qpdf --no-warn bad14.pdf a.pdf"},
{$td->STRING => "", $td->EXIT_STATUS => 3});
$td->runtest("Suppress warnings",
{$td->COMMAND =>
"qpdf --no-warn --warning-exit-0 bad14.pdf a.pdf"},
{$td->STRING => "", $td->EXIT_STATUS => 0});
$td->runtest("Suppress warnings with --check",
{$td->COMMAND => "qpdf --check --no-warn bad14.pdf"},
{$td->FILE => "bad14-check-no-warn.out",
$td->EXIT_STATUS => 3},
$td->NORMALIZE_NEWLINES);
$td->runtest("C API: errors",
{$td->COMMAND => "qpdf-ctest 2 bad1.pdf '' a.pdf"},
{$td->FILE => "c-read-errors.out",
$td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("C API: warnings writing",
{$td->COMMAND => "qpdf-ctest 2 bad33.pdf '' a.pdf"},
{$td->FILE => "c-write-warnings.out",
$td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("C API: no recovery",
{$td->COMMAND => "qpdf-ctest 10 bad33.pdf '' a.pdf"},
{$td->FILE => "c-no-recovery.out",
$td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("integer type checks",
{$td->COMMAND => "test_driver 62 minimal.pdf"},
{$td->FILE => "test62.out", $td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("getValueAs... accessor checks",
{$td->COMMAND => "test_driver 85 -"},
{$td->FILE => "test85.out", $td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$n_tests += @badfiles + 11;
# Recovery tests. These are mostly after-the-fact -- when recovery
# was implemented, some degree of recovery was possible on many of the
# files. Mostly the recovery does not actually repair the error,
# though in some cases it may. Acrobat Reader would not be able to
# recover any of these files any better.
my %recover_failures = ();
for (1, 7, 16)
{
$recover_failures{$_} = 1;
}
for (my $i = 1; $i <= scalar(@badfiles); ++$i)
{
my $status = 0;
if (exists $recover_failures{$i})
{
$status = 2;
}
$td->runtest("recover " . $badfiles[$i-1],
{$td->COMMAND => "test_driver 1 bad$i.pdf"},
{$td->FILE => "bad$i-recover.out",
$td->EXIT_STATUS => $status},
$td->NORMALIZE_NEWLINES);
}
# See if we can recover the cross reference table on a file that has
# been appended to even when it deletes and reuses objects. We can't
# completely do it in the case of deleted objects, but we can get
# mostly there.
$td->runtest("good replaced page contents",
{$td->COMMAND =>
"qpdf --static-id -qdf --no-original-object-ids" .
" append-page-content.pdf a.pdf"},
{$td->STRING => "",
$td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "append-page-content-good.qdf"});
$td->runtest("damaged replaced page contents",
{$td->COMMAND =>
"qpdf --static-id -qdf --no-original-object-ids" .
" append-page-content-damaged.pdf a.pdf"},
{$td->FILE => "append-page-content-damaged.out",
$td->EXIT_STATUS => 3},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "append-page-content-damaged.qdf"});
$td->runtest("run check on damaged file",
{$td->COMMAND => "qpdf --check append-page-content-damaged.pdf"},
{$td->FILE => "append-page-content-damaged-check.out",
$td->EXIT_STATUS => 3},
$td->NORMALIZE_NEWLINES);
$td->runtest("check with C API",
{$td->COMMAND =>
"qpdf-ctest 1 append-page-content-damaged.pdf '' ''"},
{$td->FILE => "append-page-content-damaged-c-check.out",
$td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("recoverable xref errors",
{$td->COMMAND =>
"qpdf --check --show-xref xref-errors.pdf"},
{$td->FILE => "xref-errors.out",
$td->EXIT_STATUS => 3},
$td->NORMALIZE_NEWLINES);
$td->runtest("xref loop with append",
{$td->COMMAND =>
"qpdf --deterministic-id append-xref-loop.pdf a.pdf"},
{$td->FILE => "append-xref-loop.out",
$td->EXIT_STATUS => 3},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->COMMAND => "qpdf-test-compare a.pdf append-xref-loop-fixed.pdf"},
{$td->FILE => "append-xref-loop-fixed.pdf", $td->EXIT_STATUS => 0});
$td->runtest("endobj not at newline",
{$td->COMMAND =>
"qpdf --deterministic-id endobj-at-eol.pdf a.pdf"},
{$td->FILE => "endobj-at-eol.out",
$td->EXIT_STATUS => 3},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->COMMAND => "qpdf-test-compare a.pdf endobj-at-eol-fixed.pdf"},
{$td->FILE => "endobj-at-eol-fixed.pdf", $td->EXIT_STATUS => 0});
cleanup();
$td->report($n_tests);