add damaged stream test case

git-svn-id: svn+q:///qpdf/trunk@664 71b93d88-0707-0410-a8cf-f5a4172ac649

qpdf/qtest/qpdf.test

@@ -338,7 +338,7 @@ for (my $n = 16; $n <= 19; ++$n)
 show_ntests();
 # ----------
 $td->notify("--- Specific File Tests ---");
-$n_tests += 2;
+$n_tests += 3;
 $n_compare_pdfs += 1;
 
 # Special PDF files that caused problems at some point
@@ -361,6 +361,11 @@ $td->runtest("convert to qdf",
 
 compare_pdfs("old-and-complex.pdf", "a.qdf");
 
+$td->runtest("damaged stream",
+	     {$td->COMMAND => "qpdf --check damaged-stream.pdf"},
+	     {$td->FILE => "damaged-stream.out", $td->EXIT_STATUS => 3},
+	     $td->NORMALIZE_NEWLINES);
+
 show_ntests();
 # ----------
 $td->notify("--- Mutability Tests ---");

qpdf/qtest/qpdf/damaged-stream.out

@@ -0,0 +1,4 @@
+checking damaged-stream.pdf
+File is not encrypted
+File is not linearized
+WARNING: damaged-stream.pdf: offset 426: error decoding stream data for object 5 0: LZWDecoder: bad code received