From 4d9169e15fe0e4ec9ba6093977dd117ebef02634 Mon Sep 17 00:00:00 2001
From: "James R. Barlow" <jim@purplerock.ca>
Date: Tue, 12 Sep 2017 14:33:47 -0700
Subject: [PATCH] Add merge ulimit test case

---
 tests/test_main.py | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tests/test_main.py b/tests/test_main.py
index b0612bc3..63597f53 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -4,6 +4,7 @@
 from subprocess import Popen, PIPE, check_output, check_call, DEVNULL
 import os
 import shutil
+import resource
 import pytest
 from ocrmypdf.pdfinfo import PdfInfo, Colorspace, Encoding
 import PyPDF2 as pypdf
@@ -1024,4 +1025,13 @@ def test_qpdf_negative_zero(resources, outpdf):
     hugemono = resources / 'hugemono.pdf'
     qpdf.merge([str(negzero), str(hugemono)], outpdf)  # raises exception on err
     
-    
\ No newline at end of file
+    
+def test_page_merge_ulimit(spoof_tesseract_noop, resources, outpdf):
+    # Ensure we can merge pages without opening one file descriptor per page
+    ulimits = resource.getrlimit(resource.RLIMIT_NOFILE)
+    page_count = ulimits[0]
+    print(page_count)
+    input_files = [str(resources / 'trivial.pdf')] * page_count
+
+    qpdf.merge(input_files, outpdf)
+