code: def test_suite():
      return unittest.makeSuite(BuildRpmTestCase)
  
imports: import unittest
  import sys
  import os
  import tempfile
  import shutil
  from test.test_support import run_unittest
  from distutils.core import Distribution
  from distutils.command.bdist_rpm import bdist_rpm
  from distutils.tests import support
  from distutils.spawn import find_executable
  from distutils import spawn
  from distutils.errors import DistutilsExecError
label_desc: Use image node_id 1 for calling a global function with example usage: test_suite() and returns: unittest