Improved tests

graphene/utils/lazymap.py

@@ -31,7 +31,7 @@ class LazyMap(object):
         return self.__next__()
 
     def __getitem__(self, key):
-        item = self._origin.__getitem__(key)
+        item = self._origin[key]
         if isinstance(key, slice):
             return LazyMap(item, self._map)
         return self._map(item)

graphene/utils/tests/test_lazymap.py

@@ -0,0 +1,23 @@
+from py.test import raises
+
+from ..lazymap import LazyMap
+
+
+def test_lazymap():
+    data = list(range(10))
+    lm = LazyMap(data, lambda x: 2 * x)
+    assert len(lm) == 10
+    assert lm[1] == 2
+    assert isinstance(lm[1:4], LazyMap)
+    assert lm.append == data.append
+    assert repr(lm) == '<LazyMap [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]>'
+
+
+def test_lazymap_iter():
+    data = list(range(2))
+    lm = LazyMap(data, lambda x: 2 * x)
+    iter_lm = iter(lm)
+    assert iter_lm.next() == 0
+    assert iter_lm.next() == 2
+    with raises(StopIteration):
+        iter_lm.next()

graphene/utils/tests/test_misc.py

@@ -1,8 +1,9 @@
 import collections
 
-from graphene.utils.misc import enum_to_graphql_enum
 from graphql.core.type import GraphQLEnumType
 
+from ..misc import enum_to_graphql_enum
+
 item = collections.namedtuple('type', 'name value')
 
 

graphene/utils/tests/test_proxy_snake_dict.py

@@ -1,6 +1,6 @@
 from py.test import raises
 
-from graphene.utils import ProxySnakeDict
+from ..proxy_snake_dict import ProxySnakeDict
 
 
 def test_proxy_snake_dict():

graphene/utils/tests/test_str_converter.py

@@ -1,4 +1,4 @@
-from graphene.utils import to_camel_case, to_snake_case
+from ..str_converters import to_camel_case, to_snake_case
 
 
 def test_snake_case():