How to test Python readline completion?

Question

I\'m writing a command-line interface in Python. It uses the readline module to provide command history and completion.

While everything works fine in interactive mode,

Answer 1

Check out ScriptTest:

from scripttest import TestFileEnvironment
env = TestFileEnvironment('./scratch')

def test_script():
    env.reset()
    result = env.run('do_awesome_thing testfile --with extra_win --file %s' % filename)

And play around with passing the arguments as you please.