code: def test_astype_str(self):
      # see GH#9757
      a = Series(date_range("2010-01-04", periods=5))
      b = Series(
          date_range("3/6/2012 00:00", periods=5, tz="US/Eastern")
      )
      c = Series([Timedelta(x, unit="d") for x in range(5)])
      d = Series(range(5))
      e = Series([0.0, 0.2, 0.4, 0.6, 0.8])
  
      df = DataFrame({"a": a, "b": b, "c": c, "d": d, "e": e})
  
      # Datetime-like
      result = df.astype(str)
  
      expected = DataFrame(
          {
              "a": list(
                  map(str, (Timestamp(x)._date_repr for x in a._values))
              ),
              "b": list(map(str, map(Timestamp, b._values))),
              "c": [Timedelta(x)._repr_base() for x in c._values],
              "d": list(map(str, d._values)),
              "e": list(map(str, e._values)),
          },
          dtype="object",
      )
  
      tm.assert_frame_equal(result, expected)
  
imports: import re
  import numpy
  import pytest
  import pandas.util._test_decorators
  import pandas
  from pandas import Categorical, CategoricalDtype, DataFrame, DatetimeTZDtype, Index, Interval, IntervalDtype, NaT, Series, Timedelta, Timestamp, concat, date_range, option_context
  import pandas._testing
label_desc: Use image node_id 8 for calling the TestAstype obj's underlying member method code with example usage: obj.test_astype_str() without return types