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|
#!/usr/bin/python
# Copyright (c) 2010 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
try:
import json
except ImportError: # < 2.6
import simplejson as json
import os
import optparse
import platform
import subprocess
import sys
import time
import unittest
import urllib2
from urlparse import urlparse
if sys.version_info[0] <= 2 and sys.version_info[1] < 6:
# subprocess.Popen.kill is not available prior to 2.6.
if platform.system() == 'Windows':
import win32api
else:
import signal
WEBDRIVER_EXE = os.path.abspath(os.path.join('.', 'chromedriver'))
if platform.system() == 'Windows':
WEBDRIVER_EXE = '%s.exe' % WEBDRIVER_EXE
WEBDRIVER_PORT = 8080
WEBDRIVER_SERVER_URL = None
WEBDRIVER_PROCESS = None
def setUpModule():
"""Starts the webdriver server, if necessary."""
global WEBDRIVER_SERVER_URL
global WEBDRIVER_PROCESS
if not WEBDRIVER_SERVER_URL:
WEBDRIVER_SERVER_URL = 'http://localhost:%d' % WEBDRIVER_PORT
WEBDRIVER_PROCESS = subprocess.Popen([WEBDRIVER_EXE,
'--port=%d' % WEBDRIVER_PORT])
time.sleep(3)
def tearDownModule():
"""Kills the WebDriver server, if it was started for testing."""
global WEBDRIVER_PROCESS
if WEBDRIVER_PROCESS:
if sys.version_info[0] <= 2 and sys.version_info[1] < 6:
# From http://stackoverflow.com/questions/1064335
if platform.system() == 'Windows':
PROCESS_TERMINATE = 1
handle = win32api.OpenProcess(PROCESS_TERMINATE, False,
WEBDRIVER_PROCESS.pid)
win32api.TerminateProcess(handle, -1)
win32api.CloseHandle(handle)
else:
os.kill(WEBDRIVER_PROCESS.pid, signal.SIGKILL)
else:
WEBDRIVER_PROCESS.kill()
class Request(urllib2.Request):
"""Extends urllib2.Request to support all HTTP request types."""
def __init__(self, url, method=None, data=None):
"""Initialise a new HTTP request.
Arguments:
url: The full URL to send the request to.
method: The HTTP request method to use; defaults to 'GET'.
data: The data to send with the request as a string. Defaults to
None and is ignored if |method| is not 'POST' or 'PUT'.
"""
if method is None:
method = data is not None and 'POST' or 'GET'
elif method not in ('POST', 'PUT'):
data = None
self.method = method
urllib2.Request.__init__(self, url, data=data)
def get_method(self):
"""Returns the HTTP method used by this request."""
return self.method
def SendRequest(url, method=None, data=None):
"""Sends a HTTP request to the WebDriver server.
Return values and exceptions raised are the same as those of
|urllib2.urlopen|.
Arguments:
url: The full URL to send the request to.
method: The HTTP request method to use; defaults to 'GET'.
data: The data to send with the request as a string. Defaults to
None and is ignored if |method| is not 'POST' or 'PUT'.
Returns:
A file-like object.
"""
request = Request(url, method=method, data=data)
request.add_header('Accept', 'application/json')
opener = urllib2.build_opener(urllib2.HTTPRedirectHandler())
return opener.open(request)
class WebDriverSessionlessTest(unittest.TestCase):
"""Tests against the WebDriver REST protocol that do not require creating
a session with the WebDriver server.
"""
def testShouldReturn404WhenSentAnUnknownCommandURL(self):
request_url = '%s/foo' % WEBDRIVER_SERVER_URL
try:
SendRequest(request_url, method='GET')
self.fail('Should have raised a urllib.HTTPError for returned 404')
except urllib2.HTTPError, expected:
self.assertEquals(404, expected.code)
def testShouldReturnHTTP405WhenSendingANonPostToTheSessionURL(self):
request_url = '%s/session' % WEBDRIVER_SERVER_URL
try:
SendRequest(request_url, method='GET')
self.fail('Should have raised a urllib.HTTPError for returned 405')
except urllib2.HTTPError, expected:
self.assertEquals(405, expected.code)
self.assertEquals('POST', expected.hdrs['Allow'])
def testShouldGetA404WhenAttemptingToDeleteAnUnknownSession(self):
request_url = '%s/session/unknown_session_id' % WEBDRIVER_SERVER_URL
try:
SendRequest(request_url, method='DELETE')
self.fail('Should have raised a urllib.HTTPError for returned 404')
except urllib2.HTTPError, expected:
self.assertEquals(404, expected.code)
class SessionTest(unittest.TestCase):
"""Tests requiring an active WebDriver session."""
def setUp(self):
self.session_url = None
def tearDown(self):
if self.session_url:
response = SendRequest(self.session_url, method='DELETE')
try:
self.assertEquals(200, response.code)
finally:
response.close()
def testShouldBeGivenCapabilitiesWhenStartingASession(self):
request_url = '%s/session' % WEBDRIVER_SERVER_URL
response = SendRequest(request_url, method='POST', data='{}')
try:
self.assertEquals(200, response.code)
self.session_url = response.geturl() # TODO(jleyba): verify this URL?
data = json.loads(response.read())
self.assertTrue(isinstance(data, dict))
self.assertEquals(0, data['status'])
url_parts = urlparse(self.session_url)[2].split('/')
self.assertEquals(3, len(url_parts))
self.assertEquals('', url_parts[0])
self.assertEquals('session', url_parts[1])
self.assertEquals(data['sessionId'], url_parts[2])
capabilities = data['value']
self.assertTrue(isinstance(capabilities, dict))
self.assertEquals('chrome', capabilities['browserName'])
self.assertTrue(capabilities['javascriptEnabled'])
# Value depends on what version the server is starting.
self.assertTrue('version' in capabilities)
self.assertTrue(
isinstance(capabilities['version'], unicode),
'Expected a %s, but was %s' % (unicode,
type(capabilities['version'])))
system = platform.system()
if system == 'Linux':
self.assertEquals('linux', capabilities['platform'].lower())
elif system == 'Windows':
self.assertEquals('windows', capabilities['platform'].lower())
elif system == 'Darwin':
self.assertEquals('mac', capabilities['platform'].lower())
else:
# No python on ChromeOS, so we won't have a platform value, but
# the server will know and return the value accordingly.
self.assertEquals('chromeos', capabilities['platform'].lower())
finally:
response.close()
if __name__ == '__main__':
parser = optparse.OptionParser('%prog [options]')
parser.add_option('-u', '--url', dest='url', action='store',
type='string', default=None,
help=('Specifies the URL of a remote WebDriver server to '
'test against. If not specified, a server will be '
'started on localhost according to the --exe and '
'--port flags'))
parser.add_option('-e', '--exe', dest='exe', action='store',
type='string', default=None,
help=('Path to the WebDriver server executable that should '
'be started for testing; This flag is ignored if '
'--url is provided for a remote server.'))
parser.add_option('-p', '--port', dest='port', action='store',
type='int', default=8080,
help=('The port to start the WebDriver server executable '
'on; This flag is ignored if --url is provided for a '
'remote server.'))
(options, args) = parser.parse_args()
# Strip out our flags so unittest.main() correct parses the remaining
sys.argv = sys.argv[:1]
sys.argv.extend(args)
if options.url:
WEBDRIVER_SERVER_URL = options.url
else:
if options.port:
WEBDRIVER_PORT = options.port
if options.exe:
WEBDRIVER_EXE = options.exe
if not os.path.exists(WEBDRIVER_EXE):
parser.error('WebDriver server executable not found:\n\t%s\n'
'Please specify a valid path with the --exe flag.'
% WEBDRIVER_EXE)
setUpModule()
try:
unittest.main()
finally:
tearDownModule()
|
