kea/tests/lettuce/features/steps.py

from lettuce import *
import subprocess
import os.path

@before.each_scenario
def initialize(feature):
    # just make sure our cleanup won't fail if we never did
    # run the bind10 instance
    world.bind10 = None
    world.bind10_output = []

@after.each_scenario
def cleanup(feature):
    world.shutdown_server()
    world.bind10_output = []

@step(u'Given I have no database')
def given_i_have_no_database(step):
    if os.path.exists("test.db"):
        os.remove("test.db")

@step(u'I should see a database file')
def i_should_see_a_database_file(step):
    assert os.path.exists("test.db")
    os.remove("test.db")