Be more robust against spaces in pdf file

This caused problems where the arxiv stamp was not removed
for some files. This commit adds tests for this and fixes
the issue.

1 files changed, 34 insertions, 1 deletions

diff --git a/tests/test_arxiv.py b/tests/test_arxiv.py
index beb9baa..08ea2c4 100644
--- a/tests/test_arxiv.py
+++ b/tests/test_arxiv.py
@@ -7,13 +7,28 @@ This file is part of paper2remarkable.
 
 """
 
+import os
 import re
+import shutil
+import tempfile
 import unittest
 
-from paper2remarkable.providers.arxiv import DEARXIV_TEXT_REGEX
+from paper2remarkable.providers.arxiv import DEARXIV_TEXT_REGEX, Arxiv
 
 
 class TestArxiv(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.original_dir = os.getcwd()
+
+    def setUp(self):
+        self.test_dir = tempfile.mkdtemp()
+        os.chdir(self.test_dir)
+
+    def tearDown(self):
+        os.chdir(self.original_dir)
+        shutil.rmtree(self.test_dir)
+
     def test_text_regex_1(self):
         key = b"arXiv:1908.03213v1 [astro.HE] 8 Aug 2019"
         m = re.fullmatch(DEARXIV_TEXT_REGEX, key)
@@ -24,6 +39,24 @@ class TestArxiv(unittest.TestCase):
         m = re.fullmatch(DEARXIV_TEXT_REGEX, key)
         self.assertIsNotNone(m)
 
+    def test_stamp_removed_1(self):
+        url = "https://arxiv.org/pdf/1703.06103.pdf"
+        prov = Arxiv(upload=False)
+        filename = prov.run(url, filename="./target.pdf")
+        prov.uncompress_pdf(filename, "unc.pdf")
+        with open("unc.pdf", "rb") as fp:
+            data = fp.read()
+        self.assertNotIn(b"arXiv:1703.06103v4  [stat.ML]  26 Oct 2017", data)
+
+    def test_stamp_removed_2(self):
+        url = "https://arxiv.org/abs/2003.06222"
+        prov = Arxiv(upload=False)
+        filename = prov.run(url, filename="./target.pdf")
+        prov.uncompress_pdf(filename, "unc.pdf")
+        with open("unc.pdf", "rb") as fp:
+            data = fp.read()
+        self.assertNotIn(b"arXiv:2003.06222v1  [stat.ML]  13 Mar 2020", data)
+
 
 if __name__ == "__main__":
     unittest.main()