def impl_run_program(self, command_line, join_stderr_stdout=True):
options = command_line[1:]
stdout = StringIO()
if join_stderr_stdout:
stderr = stdout
else:
stderr = StringIO()
with log.swap_streams(stdout=stdout, stderr=stderr):
try:
returncode = main(options)
except SystemExit as err:
returncode = err.code
output = stdout.getvalue()
error = stderr.getvalue()
return returncode, output, error
def impl_help(self, help_item):
stream = StringIO()
help_function = getattr(help_functions, 'help_{}'.format(help_item))
help_function(test=True,
interactive=False,
writer=lambda x: stream.write(x))
self.assertGreater(len(stream.getvalue()), 0)