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#
# Copyright (c) 2014 ThoughtWorks, Inc.
#
# Pixelated is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pixelated is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Pixelated. If not, see <http://www.gnu.org/licenses/>.
import time
from selenium.common.exceptions import (
StaleElementReferenceException,
TimeoutException)
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait
TIMEOUT_IN_S = 20
DEFAULT_IMPLICIT_WAIT_TIMEOUT_IN_S = 10.0
class ImplicitWait(object):
def __init__(self, context, timeout=5.0):
self._context = context
self._timeout = timeout
def __enter__(self):
self._context.browser.implicitly_wait(self._timeout)
def __exit__(self, exc_type, exc_val, exc_tb):
self._context.browser.implicitly_wait(DEFAULT_IMPLICIT_WAIT_TIMEOUT_IN_S)
def wait_until_element_is_invisible_by_locator(context, locator_tuple, timeout=TIMEOUT_IN_S):
wait = WebDriverWait(context.browser, timeout)
wait.until(EC.invisibility_of_element_located(locator_tuple))
def wait_for_loading_to_finish(context, timeout=TIMEOUT_IN_S):
wait_until_element_is_invisible_by_locator(context, (By.ID, 'loading'), timeout)
def wait_for_user_alert_to_disapear(context, timeout=TIMEOUT_IN_S):
wait_until_element_is_invisible_by_locator(context, (By.ID, 'user-alerts'), timeout)
def _wait_until_elements_are_visible_by_locator(context, locator_tuple, timeout=TIMEOUT_IN_S):
wait = WebDriverWait(context.browser, timeout)
wait.until(EC.presence_of_all_elements_located(locator_tuple))
return context.browser.find_elements(locator_tuple[0], locator_tuple[1])
def _wait_until_element_is_visible_by_locator(context, locator_tuple, timeout=TIMEOUT_IN_S):
wait = WebDriverWait(context.browser, timeout)
wait.until(EC.visibility_of_element_located(locator_tuple))
return context.browser.find_element(locator_tuple[0], locator_tuple[1])
def wait_for_condition(context, predicate_func, timeout=TIMEOUT_IN_S, poll_frequency=0.1):
wait = WebDriverWait(context.browser, timeout, poll_frequency=poll_frequency)
wait.until(predicate_func)
def fill_by_xpath(context, xpath, text):
field = context.browser.find_element_by_xpath(xpath)
field.send_keys(text)
def fill_by_css_selector(context, css_selector, text, timeout=TIMEOUT_IN_S):
field = find_element_by_css_selector(context, css_selector, timeout=timeout)
field.send_keys(text)
def take_screenshot(context, filename):
context.browser.save_screenshot(filename)
def page_has_css(context, css):
try:
find_element_by_css_selector(context, css)
return True
except TimeoutException:
return False
def find_element_by_xpath(context, xpath):
return _wait_until_element_is_visible_by_locator(context, (By.XPATH, xpath))
def find_element_by_id(context, id):
return _wait_until_element_is_visible_by_locator(context, (By.ID, id))
def find_element_by_css_selector(context, css_selector, timeout=TIMEOUT_IN_S):
return _wait_until_element_is_visible_by_locator(context, (By.CSS_SELECTOR, css_selector), timeout=timeout)
def find_element_by_class_name(context, class_name):
return _wait_until_element_is_visible_by_locator(context, (By.CLASS_NAME, class_name))
def find_elements_by_css_selector(context, css_selector, timeout=TIMEOUT_IN_S):
return _wait_until_elements_are_visible_by_locator(context, (By.CSS_SELECTOR, css_selector), timeout=timeout)
def find_elements_by_xpath(context, xpath, timeout=TIMEOUT_IN_S):
return _wait_until_elements_are_visible_by_locator(context, (By.XPATH, xpath), timeout=timeout)
def find_element_containing_text(context, text, element_type='*'):
return find_element_by_xpath(context, "//%s[contains(.,'%s')]" % (element_type, text))
def element_should_have_content(context, css_selector, content):
e = find_element_by_css_selector(context, css_selector)
assert e.text == content
def wait_until_button_is_visible(context, title, timeout=TIMEOUT_IN_S):
wait = WebDriverWait(context.browser, timeout)
locator_tuple = (By.XPATH, ("//%s[contains(.,'%s')]" % ('button', title)))
wait.until(EC.visibility_of_element_located(locator_tuple))
def execute_ignoring_staleness(func, timeout=TIMEOUT_IN_S):
end_time = time.time() + timeout
while time.time() <= end_time:
try:
return func()
except StaleElementReferenceException:
pass
raise TimeoutException('did not solve stale state until timeout %f' % timeout)
def click_button(context, title, element='button'):
button = find_element_containing_text(context, title, element_type=element)
button.click()
def reply_subject(context):
e = find_element_by_css_selector(context, '#reply-subject')
return e.text
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