def test_strftime_nat(self):
# GH 29578
arr = DatetimeArray(DatetimeIndex(["2019-01-01", pd.NaT]))
result = arr.strftime("%Y-%m-%d")
expected = np.array(["2019-01-01", np.nan], dtype=object)
tm.assert_numpy_array_equal(result, expected)
def test_strftime(self, datetime_index):
arr = DatetimeArray(datetime_index)
result = arr.strftime("%Y %b")
expected = np.array([ts.strftime("%Y %b") for ts in arr], dtype=object)
tm.assert_numpy_array_equal(result, expected)
def test_strftime(self, datetime_index):
arr = DatetimeArray(datetime_index)
result = arr.strftime("%Y %b")
expected = np.array(datetime_index.strftime("%Y %b"))
tm.assert_numpy_array_equal(result, expected)