diff --git a/Tests/test_image_putdata.py b/Tests/test_image_putdata.py
index 036ee285f..acea0d62a 100644
--- a/Tests/test_image_putdata.py
+++ b/Tests/test_image_putdata.py
@@ -46,6 +46,26 @@ class TestImagePutData(PillowTestCase):
         im = Image.new('L', (256,256))
         im.putdata(list(range(256))*256)
 
+    def test_mode_i(self):
+        src = lena('L')
+        data = list(src.getdata())
+        im = Image.new('I', src.size, 0)
+        im.putdata(data, 2, 256)
+
+        target = [2* elt + 256 for elt in data]
+        self.assertEqual(list(im.getdata()), target)
+
+    def test_mode_F(self):
+        src = lena('L')
+        data = list(src.getdata())
+        im = Image.new('F', src.size, 0)
+        im.putdata(data, 2.0, 256.0)
+
+        target = [2.0* float(elt) + 256.0 for elt in data]
+        self.assertEqual(list(im.getdata()), target)
+
+    
+
 if __name__ == '__main__':
     unittest.main()