text: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  
  import unittest
  import hypothesis.strategies as st
  from hypothesis import given
  import numpy as np
  from caffe2.python import core, workspace
  import caffe2.python.hypothesis_test_util as hu
  import caffe2.python.ideep_test_util as mu
  
  @unittest.skipIf(not workspace.C.use_ideep, "No IDEEP support.")
  class ReluTest(hu.HypothesisTestCase):
      @given(X=hu.tensor(),
             inplace=st.booleans(),
             **mu.gcs)
      def test_relu(self, X, inplace, gc, dc):
          op = core.CreateOperator(
              "Relu",
              ["X"],
              ["Y"] if not inplace else ["X"],
          )
          # go away from the origin point to avoid kink problems
          X += 0.02 * np.sign(X)
          X[X == 0.0] += 0.02
  
          self.assertDeviceChecks(dc, op, [X], [0])
  
          self.assertGradientChecks(gc, op, [X], 0, [0])
  
  
  if __name__ == "__main__":
      unittest.main()
  