code: def test_valid_country():
      date_to_holiday = DateToHoliday(country="Canada")
      case = pd.Series(
          [
              "2016-07-01",
              "2016-11-11",
              "2018-09-03",
          ],
      ).astype("datetime64[ns]")
      answer = ["Canada Day", np.nan, "Labour Day"]
      given_answer = date_to_holiday(case).astype("str")
      np.testing.assert_array_equal(given_answer, answer)
  
file_path: featuretools/featuretools/tests/primitive_tests/transform_primitive_tests/test_datetoholiday_primitive.py
imports: from datetime import datetime
  import numpy
  import pandas
  import pytest
  from featuretools.primitives import DateToHoliday
label_desc: Use image node_id 4 for calling a global function with example usage: test_valid_country() without return types