diff --git a/Tests/test_image_thumbnail.py b/Tests/test_image_thumbnail.py
index 27a552c6bfb..bb259ecde23 100644
--- a/Tests/test_image_thumbnail.py
+++ b/Tests/test_image_thumbnail.py
@@ -34,14 +34,14 @@ def test_aspect():
     im.thumbnail((100, 100))
     assert im.size == (100, 50)
 
+    im = Image.new("L", (256, 128))
+    im.thumbnail((100, 50))
+    assert im.size == (100, 50)
+
     im = Image.new("L", (64, 64))
     im.thumbnail((100, 100))
     assert im.size == (64, 64)
 
-    im = Image.new("L", (128, 128))
-    im.thumbnail((100, 100))
-    assert im.size == (100, 100)
-
     im = Image.new("L", (256, 162))  # ratio is 1.5802469136
     im.thumbnail((33, 33))
     assert im.size == (33, 21)  # ratio is 1.5714285714
@@ -52,7 +52,7 @@ def test_aspect():
 
     im = Image.new("L", (145, 100))  # ratio is 1.45
     im.thumbnail((50, 50))
-    assert im.size ==(50, 34)  # ratio is 1.47058823529
+    assert im.size == (50, 34)  # ratio is 1.47058823529
 
     im = Image.new("L", (100, 145))  # ratio is 0.689655172414
     im.thumbnail((50, 50))
@@ -62,7 +62,7 @@ def test_aspect():
 def test_float():
     im = Image.new("L", (128, 128))
     im.thumbnail((99.9, 99.9))
-    assert im.size == (100, 100)
+    assert im.size == (99, 99)
 
 
 def test_no_resize():