Add test for attempts to copy foreign /Pages object

m-holger
1 parent 0046de08
Showing 2 changed files with 5 additions and 0 deletions
qpdf/qtest/qpdf/copy-foreign-objects-25.out
qpdf/test_driver.cc
+WARNING: minimal.pdf (object 6 0, offset 556): Unexpected reference to /Pages object while copying foreign object. Replacing with Null object.
 test 25 done
@@ -954,6 +954,8 @@ test_25(QPDF&amp; pdf, char const* arg2)
     // Copy qtest without crossing page boundaries.  Should get O1
     // and O2 and their streams but not O3 or any other pages.
  
+    // Also verify that attempts to copy /Pages objects return null.
+
     assert(arg2 != nullptr);
     {
         // Make sure original PDF is out of scope when we write.
@@ -961,6 +963,8 @@ test_25(QPDF&amp; pdf, char const* arg2)
         oldpdf.processFile(arg2);
         QPDFObjectHandle qtest = oldpdf.getTrailer().getKey("/QTest");
         pdf.getTrailer().replaceKey("/QTest", pdf.copyForeignObject(qtest));
+
+        assert(pdf.copyForeignObject(oldpdf.getRoot().getKey("/Pages")).isNull());
     }
  
     QPDFWriter w(pdf, "a.pdf");