code: def _check_value_error(self, val):
      pattern = r"\(got {}\)".format(re.escape(repr(val)))
      with pytest.raises(ValueError, match=pattern) as exc:
          self.conv(val)
  
imports: import re
  import sys
  import pytest
  import numpy
  import numpy._core._multiarray_tests
  from numpy._core.multiarray import CLIP, WRAP, RAISE
  from numpy.testing import assert_warns, IS_PYPY
label_desc: Use image node_id 1 for calling the StringConverterTestCase obj's underlying member method code with example usage: obj._check_value_error(val) without return types