code: def test_negative_rate(self):
      with self.assertRaises(ValueError):
          extensions.InverseShift("x", -1.0, 1.0)
  
file_path: chainer/tests/chainer_tests/training_tests/extensions_tests/test_inverse_shift.py
imports: import unittest
  import mock
  from chainer import testing
  from chainer.training import extensions
  from chainer.training import util
label_desc: Use image node_id 1 for calling the TestInverseShiftInvalidArgument obj's underlying member method code with example usage: obj.test_negative_rate() without return types