/usr/lib/python2.7/dist-packages/twill/unit.py is in python-twill 0.9-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Support functionality for using twill in unit tests.
"""
import sys, os, time
from cStringIO import StringIO
# package import
from parse import execute_file
class TestInfo:
"""
Object containing info for a test: script to run, server function to
run, and port to run it on. Note that information about server port
*must* be decided by the end of the __init__ function.
The optional sleep argument specifies how many seconds to wait for the
server to set itself up. Default is 0.
"""
def __init__(self, script, server_fn, port, sleep=0):
self.script = script
self.server_fn = server_fn
self.port = port
self.stdout = None
self.stderr = None
self.sleep = sleep
def start_server(self):
# save old stdout/stderr
old_out, old_err = sys.stdout, sys.stderr
# create new stdout/stderr
self.stdout = sys.stdout = StringIO()
self.stderr = sys.stderr = StringIO()
try:
self.server_fn()
finally:
# restore stdout/stderr
sys.stdout, sys.stderr = old_out, old_err
def run_script(self):
"""
Run the given twill script on the given server.
"""
time.sleep(self.sleep)
url = self.get_url()
execute_file(self.script, initial_url=url)
def get_url(self):
"Calculate the test server URL."
return "http://localhost:%d/" % (self.port,)
#
# run_test
#
def run_test(test_info):
"""
Run a test on a Web site where the Web site is running in a child
process.
"""
pid = os.fork()
if pid is 0:
run_child_process(test_info)
# never returns...
#
# run twill test script.
#
child_pid = pid
try:
test_info.run_script()
finally:
os.kill(child_pid, 9)
#
# run_child_process
#
def run_child_process(test_info):
"""
Run a Web server in a child process.
"""
test_info.start_server()
sys.exit(0)
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