BUG: fix makeObjectSeries returns object

jmg7173 · jmg7173 · commit 81755e6fdad3 · 2019-09-12T23:31:36.000+09:00
diff --git a/pandas/util/testing.py b/pandas/util/testing.py
@@ -1857,7 +1857,7 @@ def makeObjectSeries(name=None):
     dateIndex = makeDateIndex(N)
     dateIndex = Index(dateIndex, dtype=object)
     index = makeStringIndex(N)
-    return Series(dateIndex, index=index, name=name)
+    return Series(dateIndex, dtype=object, index=index, name=name)
 
 
 def getSeriesData():
