Implement lightweight cleaning for png and tiff

1 files changed, 65 insertions, 0 deletions

diff --git a/tests/test_lightweigh_cleaning.py b/tests/test_lightweigh_cleaning.py
new file mode 100644
index 0000000..7af31ad
--- /dev/null
+++ b/tests/test_lightweigh_cleaning.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+
+import unittest
+import shutil
+import os
+
+from libmat2 import pdf, images
+
+class TestLightWeightCleaning(unittest.TestCase):
+    def test_pdf(self):
+        shutil.copy('./tests/data/dirty.pdf', './tests/data/clean.pdf')
+        p = pdf.PDFParser('./tests/data/clean.pdf')
+
+        meta = p.get_meta()
+        self.assertEqual(meta['producer'], 'pdfTeX-1.40.14')
+
+        p.lightweight_cleaning = True
+        ret = p.remove_all()
+        self.assertTrue(ret)
+
+        p = pdf.PDFParser('./tests/data/clean.cleaned.pdf')
+        expected_meta = {'creation-date': -1, 'format': 'PDF-1.5', 'mod-date': -1}
+        self.assertEqual(p.get_meta(), expected_meta)
+
+        os.remove('./tests/data/clean.pdf')
+        os.remove('./tests/data/clean.cleaned.pdf')
+
+    def test_png(self):
+        shutil.copy('./tests/data/dirty.png', './tests/data/clean.png')
+        p = images.PNGParser('./tests/data/clean.png')
+
+        meta = p.get_meta()
+        self.assertEqual(meta['Comment'], 'This is a comment, be careful!')
+
+        p.lightweight_cleaning = True
+        ret = p.remove_all()
+        self.assertTrue(ret)
+
+        p = images.PNGParser('./tests/data/clean.cleaned.png')
+        self.assertEqual(p.get_meta(), {})
+
+        p = images.PNGParser('./tests/data/clean.png')
+        p.lightweight_cleaning = True
+        ret = p.remove_all()
+        self.assertTrue(ret)
+
+        os.remove('./tests/data/clean.png')
+        os.remove('./tests/data/clean.cleaned.png')
+
+    def test_jpg(self):
+        shutil.copy('./tests/data/dirty.jpg', './tests/data/clean.jpg')
+        p = images.JPGParser('./tests/data/clean.jpg')
+
+        meta = p.get_meta()
+        self.assertEqual(meta['Comment'], 'Created with GIMP')
+
+        p.lightweight_cleaning = True
+        ret = p.remove_all()
+        self.assertTrue(ret)
+
+        p = images.JPGParser('./tests/data/clean.cleaned.jpg')
+        self.assertEqual(p.get_meta(), {})
+
+        os.remove('./tests/data/clean.jpg')
+        os.remove('./tests/data/clean.cleaned.jpg')