text: from typing import Any
  
  import pytest
  from qcodes.utils.validators import Anything, Validator
  
  from .conftest import AClass, a_func
  
  
  class BrokenValidator(Validator[Any]):
  
      def __init__(self):
          pass
  
  
  def test_broken():
      # nor can you call validate without overriding it in a subclass
      b = BrokenValidator()
      with pytest.raises(NotImplementedError):
          b.validate(0)
  
  
  def test_real_anything():
      a = Anything()
      for v in [None, 0, 1, 0.0, 1.2, '', 'hi!', [1, 2, 3], [],
                {'a': 1, 'b': 2}, {}, {1, 2, 3}, a, range(10),
                True, False, float("nan"), float("inf"), b'good',
                AClass, AClass(), a_func]:
          a.validate(v)
  
      assert repr(a) == '<Anything>'
  
  
  def test_failed_anything():
      with pytest.raises(TypeError):
          Anything(1)
  
      with pytest.raises(TypeError):
          Anything(values=[1, 2, 3])
  