docstr: Test ilog2
docstr_tok: ["Test","ilog2"]
code: def test_ilog2(self):
      """Test ilog2"""
      for x in (0, 1, 2, 3, 16):
          self.assertEqual(objax.util.ilog2(1 << x), x)
          self.assertEqual(objax.util.ilog2((1 << x) + 0.01), x + 1)
          self.assertEqual(objax.util.ilog2((2 << x) - 0.01), x + 1)
  
file_path: objax/tests/util.py
imports: import re
  import unittest
  import objax
label_desc: Use image node_id 5 for calling the TestUtil obj's underlying member method code with example usage: obj.test_ilog2() without return types