diff --git a/runtests.py b/runtests.py
index c42898f..a126c88 100644
--- a/runtests.py
+++ b/runtests.py
@@ -1,6 +1,8 @@
 import unittest
 
 from tests.test_image import *
+from tests.test_pillow import *
+from tests.test_wand import *
 
 
 if __name__ == '__main__':
diff --git a/tests/images/transparent.png b/tests/images/transparent.png
new file mode 100644
index 0000000..902ea82
Binary files /dev/null and b/tests/images/transparent.png differ
diff --git a/tests/test_pillow.py b/tests/test_pillow.py
new file mode 100644
index 0000000..dece0be
--- /dev/null
+++ b/tests/test_pillow.py
@@ -0,0 +1,30 @@
+import unittest2
+
+from willow.backends import pillow as pillow_backend
+
+
+class TestPillowOperations(unittest2.TestCase):
+    def setUp(self):
+        with open('tests/images/transparent.png', 'rb') as f:
+            self.backend = pillow_backend.PillowBackend.from_file(f)
+
+    def test_get_size(self):
+        width, height = pillow_backend.get_size(self.backend)
+        self.assertEqual(width, 200)
+        self.assertEqual(height, 150)
+
+    def test_resize(self):
+        pillow_backend.resize(self.backend, 100, 75)
+        self.assertEqual(self.backend.image.size, (100, 75))
+
+    def test_resize(self):
+        pillow_backend.resize(self.backend, 100, 75)
+        self.assertEqual(self.backend.image.size, (100, 75))
+
+    def test_has_alpha(self):
+        has_alpha = pillow_backend.has_alpha(self.backend)
+        self.assertTrue(has_alpha)
+
+    def test_has_animation(self):
+        has_animation = pillow_backend.has_animation(self.backend)
+        self.assertFalse(has_animation)
diff --git a/tests/test_wand.py b/tests/test_wand.py
new file mode 100644
index 0000000..6499ce0
--- /dev/null
+++ b/tests/test_wand.py
@@ -0,0 +1,30 @@
+import unittest2
+
+from willow.backends import wand as wand_backend
+
+
+class TestWandOperations(unittest2.TestCase):
+    def setUp(self):
+        with open('tests/images/transparent.png', 'rb') as f:
+            self.backend = wand_backend.WandBackend.from_file(f)
+
+    def test_get_size(self):
+        width, height = wand_backend.get_size(self.backend)
+        self.assertEqual(width, 200)
+        self.assertEqual(height, 150)
+
+    def test_resize(self):
+        wand_backend.resize(self.backend, 100, 75)
+        self.assertEqual(self.backend.image.size, (100, 75))
+
+    def test_resize(self):
+        wand_backend.resize(self.backend, 100, 75)
+        self.assertEqual(self.backend.image.size, (100, 75))
+
+    def test_has_alpha(self):
+        has_alpha = wand_backend.has_alpha(self.backend)
+        self.assertTrue(has_alpha)
+
+    def test_has_animation(self):
+        has_animation = wand_backend.has_animation(self.backend)
+        self.assertFalse(has_animation)