1 files changed, 41 insertions, 0 deletions
diff --git a/qpdf/qtest/preserve_unref.test b/qpdf/qtest/preserve_unref.test
new file mode 100644
index 00000000..d2f804df
--- /dev/null
+++ b/qpdf/qtest/preserve_unref.test
@@ -0,0 +1,41 @@
+#!/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('preserve_unref');
+
+my $n_tests = 6;
+
+$td->runtest("drop unused objects",
+             {$td->COMMAND => "qpdf --static-id unreferenced-objects.pdf a.pdf"},
+             {$td->STRING => "", $td->EXIT_STATUS => 0});
+$td->runtest("check output",
+             {$td->FILE => "a.pdf"},
+             {$td->FILE => "unreferenced-dropped.pdf"});
+$td->runtest("keep unused objects",
+             {$td->COMMAND => "qpdf --static-id --preserve-unreferenced" .
+                  " unreferenced-objects.pdf a.pdf"},
+             {$td->STRING => "", $td->EXIT_STATUS => 0});
+$td->runtest("check output",
+             {$td->FILE => "a.pdf"},
+             {$td->FILE => "unreferenced-preserved.pdf"});
+$td->runtest("keep unused objects (C)",
+             {$td->COMMAND =>
+                  "qpdf-ctest 21 unreferenced-objects.pdf '' a.pdf"},
+             {$td->STRING => "C test 21 done\n", $td->EXIT_STATUS => 0},
+             $td->NORMALIZE_NEWLINES);
+$td->runtest("check output",
+             {$td->FILE => "a.pdf"},
+             {$td->FILE => "unreferenced-preserved.pdf"});
+cleanup();
+$td->report($n_tests);