From 2d2474685a48575f4aa4b1e3c0d9b07dafd21b4e Mon Sep 17 00:00:00 2001
From: wiredfool <eric-github@soroos.net>
Date: Wed, 29 Oct 2014 11:07:20 -0700
Subject: [PATCH] Added 4bit test to libtiff as well

---
 Tests/test_file_libtiff.py | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Tests/test_file_libtiff.py b/Tests/test_file_libtiff.py
index 85b796242..efd2d5817 100644
--- a/Tests/test_file_libtiff.py
+++ b/Tests/test_file_libtiff.py
@@ -342,6 +342,24 @@ class TestFileLibTiff(LibTiffTestCase):
         im.load()
         self.assertFalse(im.tag.next)
 
+    def test_4bit(self):
+        # Arrange
+        test_file = "Tests/images/hopper_gray_4bpp.tif"
+        original = hopper("L")
+
+        # Act
+        TiffImagePlugin.READ_LIBTIFF = True
+        im = Image.open(test_file)
+        TiffImagePlugin.READ_LIBTIFF = False
+
+        # Assert
+        self.assertEqual(im.size, (128, 128))
+        self.assertEqual(im.mode, "L")
+        self.assert_image_similar(im, original, 7.3)
+
+
+
+
 if __name__ == '__main__':
     unittest.main()