code: def testParseNoUnitWorks(self):
      self.assertEqual(0, command_parser.parse_readable_size_str("0"))
      self.assertEqual(
          1024, command_parser.parse_readable_size_str("1024 ")
      )
      self.assertEqual(
          2000, command_parser.parse_readable_size_str(" 2000 ")
      )
  
imports: import sys
  from tensorflow.python.debug.cli import command_parser
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 1 for calling the ParseReadableSizeStrTest obj's underlying member method code with example usage: obj.testParseNoUnitWorks() without return types