Test case for issue #200

tests/resources/README.rst

@@ -61,6 +61,9 @@ under the terms of the license in LICENSE.rst.
     *   - cmyk.pdf
         - @jbarlow83
         - a CMYK image created in Photoshop
+    *   - crom.png
+        - @jbarlow83
+        - test for non-dictionary words        
     *   - enormous.pdf
         - @jbarlow83
         - very large PDF page
@@ -69,7 +72,7 @@ under the terms of the license in LICENSE.rst.
         - a linearized PDF containing some unusual indirect objects, created by an Epson printer; printout of a Wikipedia article (CC BY-SA)
     *   - formxobject.pdf
         - @jbarlow83
-        - hand-crafted exotic PDF containing an image inside a Form XObject
+        - hand-crafted PDF containing an image inside a Form XObject
     *   - francais.pdf
         - @jbarlow83
         - a page containing French accents (diacritics)  
@@ -88,12 +91,12 @@ under the terms of the license in LICENSE.rst.
     *   - overlay.pdf
         - @maxandersen
         - PDF file generated by PDFPen pro that triggered content stream parse errors
+    *   - negzero.pdf
+        - @jbarlow83
+        - copy of formxobject.pdf with token that qpdf doesn't like
     *   - no_contents.pdf
         - @jbarlow83
         - synthetic PDF with a blank page that has no /Contents entry
-    *   - crom.png
-        - @jbarlow83
-        - test for non-dictionary words
 
 
 Assemblies

tests/test_main.py

@@ -10,7 +10,7 @@ import PyPDF2 as pypdf
 from ocrmypdf.exceptions import ExitCode
 from ocrmypdf import leptonica
 from ocrmypdf.pdfa import file_claims_pdfa
-from ocrmypdf.exec import ghostscript, tesseract
+from ocrmypdf.exec import ghostscript, tesseract, qpdf
 import logging
 from math import isclose
 
@@ -1016,4 +1016,12 @@ def test_bad_locale():
     )
     assert out == '', "stdout not clean"
     assert p.returncode != 0
-    assert 'configured to use ASCII as encoding' in err, "should whine"
+    assert 'configured to use ASCII as encoding' in err, "should whine"
+
+
+def test_qpdf_negative_zero(resources, outpdf):
+    negzero = resources / 'negzero.pdf'
+    hugemono = resources / 'hugemono.pdf'
+    qpdf.merge([str(negzero), str(hugemono)], outpdf)  # raises exception on err
+    
+