CHORE: Enable mistakenly ignored tests (#60827)

Enable ignored tests

Author: quangngd

pandas/tests/io/formats/test_to_string.py

@@ -132,20 +132,17 @@ def test_to_string_with_formatters_unicode(self):
  )
  assert result == expected
 
- def test_to_string_index_formatter(self):
- df = DataFrame([range(5), range(5, 10), range(10, 15)])
-
- rs = df.to_string(formatters={"__index__": lambda x: "abc"[x]})
-
- xp = dedent(
- """\
- 0 1 2 3 4
- a 0 1 2 3 4
- b 5 6 7 8 9
- c 10 11 12 13 14\
- """
- )
- assert rs == xp
+ def test_to_string_index_formatter(self):
+ df = DataFrame([range(5), range(5, 10), range(10, 15)])
+ rs = df.to_string(formatters={"__index__": lambda x: "abc"[x]})
+ xp = dedent(
+ """\
+ 0 1 2 3 4
+ a 0 1 2 3 4
+ b 5 6 7 8 9
+ c 10 11 12 13 14"""
+ )
+ assert rs == xp
 
  def test_no_extra_space(self):
  # GH#52690: Check that no extra space is given