test and fix for #143 index with numpy integer item

Author: alimanfoo

zarr/compat.py

@@ -4,19 +4,26 @@
 import sys
 
 
+import numpy as np
+
+
 PY2 = sys.version_info[0] == 2
 
 
+numpy_integer_types = np.int8, np.int16, np.int32, np.int64, np.uint8, np.uint16, np.uint32, \
+                      np.uint64
+
+
 if PY2:  # pragma: no cover
 
     text_type = unicode
     binary_type = str
-    integer_types = (int, long)
+    integer_types = (int, long) + numpy_integer_types
     reduce = reduce
 
 else:
 
     text_type = str
     binary_type = bytes
-    integer_types = int,
+    integer_types = (int,) + numpy_integer_types
     from functools import reduce

zarr/tests/test_core.py

@@ -130,6 +130,11 @@ def test_array_1d(self):
         # single item
         eq(a[0], z[0])
         eq(a[-1], z[-1])
+        # unusual integer items
+        eq(a[42], z[np.int64(42)])
+        eq(a[42], z[np.int32(42)])
+        eq(a[42], z[np.uint64(42)])
+        eq(a[42], z[np.uint32(42)])
 
         # check partial assignment
         b = np.arange(1e5, 2e5)