code: def test_no_zero_division(self):
      # No zero-division should occur when the relative error is inf (y=0).
      # That would cause FloatingPointError with
      # numpy.errstate(divide='raise').
      with numpy.errstate(divide="raise"):
          with pytest.raises(AssertionError):
              x = numpy.array([1], numpy.float32)
              y = numpy.array([0], numpy.float32)
              testing.assert_allclose(x, y)
  
imports: import unittest
  import numpy
  import pytest
  from chainer import testing
label_desc: Use image node_id 1 for calling the TestAssertAllClose obj's underlying member method code with example usage: obj.test_no_zero_division() without return types