618             f = open(self.errpath, 'wb')

   618             f = open(self.errpath, 'wb')

   619             for line in self._out:

   619             for line in self._out:

   620                 f.write(line)

   620                 f.write(line)

   621             f.close()

   621             f.close()

   622 

   622 

   624 

   624 

   625     def _run(self, env):

   625     def _run(self, env):

   626         # This should be implemented in child classes to run tests.

   626         # This should be implemented in child classes to run tests.

   627         raise SkipTest('unknown test type')

   627         raise SkipTest('unknown test type')

   628 

   628