code: def test_fromstring_foreign_value(self):
      with assert_warns(DeprecationWarning):
          b = np.fromstring("1,234", dtype=np.longdouble, sep=" ")
          assert_array_equal(b[0], 1)
  
imports: import warnings
  import platform
  import pytest
  import numpy
  from numpy.testing import assert_, assert_equal, assert_raises, assert_warns, assert_array_equal, temppath, IS_MUSL
  from numpy._core.tests._locales import CommaDecimalPointLocale
label_desc: Use image node_id 7 for calling the TestCommaDecimalPointLocale obj's underlying member method code with example usage: obj.test_fromstring_foreign_value() without return types