1 files changed, 15 insertions, 0 deletions
diff --git a/tests/test_types.py b/tests/test_types.py
index 907be20..7aff73f 100644
--- a/tests/test_types.py
+++ b/tests/test_types.py
@@ -20,6 +20,9 @@ class testTypes(unittest.TestCase):
         s = checker.load("Hello World!")
         self.assertEqual(s, "Hello World!")
 
+        s = checker.load(None)
+        self.assertEqual(s, None)
+
     def test_text(self):
         checker = types.LesanaText()
 
@@ -29,6 +32,9 @@ class testTypes(unittest.TestCase):
         s = checker.load("Hello World!")
         self.assertEqual(s, "Hello World!")
 
+        s = checker.load(None)
+        self.assertEqual(s, None)
+
     def test_int(self):
         checker = types.LesanaInt()
 
@@ -45,6 +51,9 @@ class testTypes(unittest.TestCase):
             with self.assertRaises(types.LesanaValueError):
                 checker.load(d)
 
+        v = checker.load(None)
+        self.assertEqual(v, None)
+
     def test_float(self):
         checker = types.LesanaFloat()
 
@@ -64,6 +73,9 @@ class testTypes(unittest.TestCase):
             with self.assertRaises(types.LesanaValueError):
                 checker.load(d)
 
+        v = checker.load(None)
+        self.assertEqual(v, None)
+
     def test_decimal(self):
         checker = types.LesanaDecimal()
 
@@ -83,6 +95,9 @@ class testTypes(unittest.TestCase):
             with self.assertRaises(types.LesanaValueError):
                 checker.load(d)
 
+        v = checker.load(None)
+        self.assertEqual(v, None)
+
 
 if __name__ == '__main__':
     unittest.main()