From 8fc505afdb1a51ccedc9fda2d9df0651f020c12f Mon Sep 17 00:00:00 2001
From: Guillaume Ayoub <guillaume@courtbouillon.org>
Date: Sat, 12 Dec 2020 22:54:57 +0100
Subject: [PATCH] Try to always read input in blocks

---
 tests/conftest.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/conftest.py b/tests/conftest.py
index 226e348a..cac0ca75 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -25,7 +25,7 @@ def document_write_png(self, target=None, resolution=96, antialiasing=1):
     command = [
         'gs', '-q', '-dNOPAUSE', '-dSAFER', f'-dTextAlphaBits={antialiasing}',
         f'-dGraphicsAlphaBits={antialiasing}', '-sDEVICE=png16m',
-        f'-r{resolution}', '-sOutputFile=-', '-']
+        f'-r{resolution}', '-sOutputFile=-', '-_']
     pngs = run(command, input=self.write_pdf(), stdout=PIPE).stdout
 
     assert pngs.startswith(MAGIC_NUMBER), (