Fixed another test for np.int8

test/test_distributed_data_object.py

@@ -1889,6 +1889,9 @@ class Test_axis(unittest.TestCase):
         (a, obj) = generate_data(global_shape, dtype,
                                  distribution_strategy,
                                  strictly_positive=True)
+        if dtype is np.dtype('int8'):
+            a[a > 8] = 0
+            obj[obj > 8] = 0
         if function in ['argmin', 'argmax'] and axis is not None:
             assert_raises(NotImplementedError, lambda: getattr(obj, function)
                           (axis=axis))