Pass test in Windows py36_np15

Author: kotamatsuoka

pandas/core/algorithms.py

@@ -718,7 +718,8 @@ def value_counts(
         else:
             keys, counts = _value_counts_arraylike(values, dropna)
 
-            result = Series(counts, index=keys, name=name)
+            result = Series(counts, index=keys, name=name, dtype="Int64")
+
 
     if sort:
         result = result.sort_values(ascending=ascending)

pandas/tests/base/test_value_counts.py

@@ -145,7 +145,7 @@ def test_value_counts_bins(index_or_series):
     if isinstance(s1, Index):
         tm.assert_index_equal(s1.unique(), Index([1, 2, 3]))
     else:
-        exp = np.array([1, 2, 3])
+        exp = np.array([1, 2, 3], dtype='int64')
         tm.assert_numpy_array_equal(s1.unique(), exp)
 
     assert s1.nunique() == 3