code: def test_scalar(self):
      x = utils.force_array(numpy.float32(1), dtype=self.dtype)
      self.assertIsInstance(x, numpy.ndarray)
      if self.dtype is None:
          self.assertEqual(x.dtype, numpy.float32)
      else:
          self.assertEqual(x.dtype, self.dtype)
  
file_path: chainer/tests/chainer_tests/utils_tests/test_utils.py
imports: import unittest
  import numpy
  from chainer import testing
  from chainer import utils
label_desc: Use image node_id 1 for calling the TestForceArray obj's underlying member method code with example usage: obj.test_scalar() without return types