code: def get_cmd(self):
          
  
          cmd = None
          if self.test_program in ('nose', 'nosetests'):
              cmd = "nosetests %s" % self.file_path
          elif self.test_program == 'django':
              executable = "%s/manage.py" % self.file_path
              if os.path.exists(executable):
                  cmd = "python %s/manage.py test" % self.file_path
              else:
                  cmd = "django-admin.py test"
          elif self.test_program == 'py':
              cmd = 'py.test %s' % self.file_path
          elif self.test_program == 'symfony':
              cmd = 'symfony test-all'
          elif self.test_program == 'jelix':
              # as seen on http://jelix.org/articles/fr/manuel-1.1/tests_unitaires
              cmd = 'php tests.php'
          elif self.test_program == 'phpunit':
              cmd = 'phpunit'
          elif self.test_program == 'sphinx':
              cmd = 'make html'
          elif self.test_program == 'tox':
              cmd = 'tox'
  
          if not cmd:
              raise InvalidTestProgram("The test program %s is unknown. Valid options are: `nose`, `django` and `py`" % self.test_program)
  
          # adding custom args
          if self.custom_args:
              cmd = '%s %s' % (cmd, self.custom_args)
          return cmd
docs: Returns the full command to be executed at runtime