Update tests

- new tests to verify old behaviour 
- test otherwise without cast and defaut
- verify if behave like a list 
- more test with call function

gluon/tests/test_storage.py

@@ -120,17 +120,14 @@ class TestStorageList(unittest.TestCase):
 
 
 class TestList(unittest.TestCase):
+
     """ Tests Storage.List (fast-check for request.args()) """
 
     def test_listcall(self):
         a = List((1, 2, 3))
         self.assertEqual(a(1), 2)
-        self.assertEqual(a[1], 2)
-        self.assertEqual(a(3), None)
-        self.assertEqual(a[3], None)
         self.assertEqual(a(-1), 3)
         self.assertEqual(a(-5), None)
-        self.assertEqual(a[-5], None)
         self.assertEqual(a(-5, default='x'), 'x')
         self.assertEqual(a(-3, cast=str), '1')
         a.append('1234')
@@ -139,8 +136,24 @@ class TestList(unittest.TestCase):
         a.append('x')
         self.assertRaises(HTTP, a, 4, cast=int)
         b = List()
+        # default is always returned when especified
         self.assertEqual(b(0, cast=int, default=None), None)
-        self.assertEqual(b(0, cast=int, default=None, otherwise='something'), None)
+        self.assertEqual(b(0, cast=int, default=None, otherwise='teste'), None)
+        self.assertEqual(b(0, cast=int, default='a', otherwise='teste'), 'a')
+        # if don't have value and otherwise is especified it will called
+        self.assertEqual(b(0, otherwise=lambda: 'something'), 'something')
+        self.assertEqual(b(0, cast=int, otherwise=lambda: 'something'),
+                         'something')
+        # except if default is especified
+        self.assertEqual(b(0, default=0, otherwise=lambda: 'something'), 0)
+        
+    def test_listgetitem(self):
+        '''Mantains list behaviour.'''
+        a = List((1, 2, 3))
+        self.assertEqual(a[0], 1)
+        with self.assertRaises(IndexError):
+            a[3]
+        self.assertEqual(a[::-1], [3, 2, 1])
 
 
 if __name__ == '__main__':