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import os
from unittest import SkipTest
from django.contrib.staticfiles.testing import StaticLiveServerTestCase
from django.utils.module_loading import import_string
from django.utils.translation import ugettext as _
class AdminSeleniumWebDriverTestCase(StaticLiveServerTestCase):
available_apps = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
]
webdriver_class = 'selenium.webdriver.firefox.webdriver.WebDriver'
@classmethod
def setUpClass(cls):
if not os.environ.get('DJANGO_SELENIUM_TESTS', False):
raise SkipTest('Selenium tests not requested')
try:
cls.selenium = import_string(cls.webdriver_class)()
except Exception as e:
raise SkipTest('Selenium webdriver "%s" not installed or not '
'operational: %s' % (cls.webdriver_class, str(e)))
# This has to be last to ensure that resources are cleaned up properly!
super(AdminSeleniumWebDriverTestCase, cls).setUpClass()
@classmethod
def _tearDownClassInternal(cls):
if hasattr(cls, 'selenium'):
cls.selenium.quit()
super(AdminSeleniumWebDriverTestCase, cls)._tearDownClassInternal()
def wait_until(self, callback, timeout=10):
"""
Helper function that blocks the execution of the tests until the
specified callback returns a value that is not falsy. This function can
be called, for example, after clicking a link or submitting a form.
See the other public methods that call this function for more details.
"""
from selenium.webdriver.support.wait import WebDriverWait
WebDriverWait(self.selenium, timeout).until(callback)
def wait_loaded_tag(self, tag_name, timeout=10):
"""
Helper function that blocks until the element with the given tag name
is found on the page.
"""
self.wait_for(tag_name, timeout)
def wait_for(self, css_selector, timeout=10):
"""
Helper function that blocks until a CSS selector is found on the page.
"""
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as ec
self.wait_until(
ec.presence_of_element_located((By.CSS_SELECTOR, css_selector)),
timeout
)
def wait_for_text(self, css_selector, text, timeout=10):
"""
Helper function that blocks until the text is found in the CSS selector.
"""
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as ec
self.wait_until(
ec.text_to_be_present_in_element(
(By.CSS_SELECTOR, css_selector), text),
timeout
)
def wait_for_value(self, css_selector, text, timeout=10):
"""
Helper function that blocks until the value is found in the CSS selector.
"""
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as ec
self.wait_until(
ec.text_to_be_present_in_element_value(
(By.CSS_SELECTOR, css_selector), text),
timeout
)
def wait_page_loaded(self):
"""
Block until page has started to load.
"""
from selenium.common.exceptions import TimeoutException
try:
# Wait for the next page to be loaded
self.wait_loaded_tag('body')
except TimeoutException:
# IE7 occasionally returns an error "Internet Explorer cannot
# display the webpage" and doesn't load the next page. We just
# ignore it.
pass
def admin_login(self, username, password, login_url='/admin/'):
"""
Helper function to log into the admin.
"""
self.selenium.get('%s%s' % (self.live_server_url, login_url))
username_input = self.selenium.find_element_by_name('username')
username_input.send_keys(username)
password_input = self.selenium.find_element_by_name('password')
password_input.send_keys(password)
login_text = _('Log in')
self.selenium.find_element_by_xpath(
'//input[@value="%s"]' % login_text).click()
self.wait_page_loaded()
def get_css_value(self, selector, attribute):
"""
Helper function that returns the value for the CSS attribute of an
DOM element specified by the given selector. Uses the jQuery that ships
with Django.
"""
return self.selenium.execute_script(
'return django.jQuery("%s").css("%s")' % (selector, attribute))
def get_select_option(self, selector, value):
"""
Returns the <OPTION> with the value `value` inside the <SELECT> widget
identified by the CSS selector `selector`.
"""
from selenium.common.exceptions import NoSuchElementException
options = self.selenium.find_elements_by_css_selector('%s > option' % selector)
for option in options:
if option.get_attribute('value') == value:
return option
raise NoSuchElementException('Option "%s" not found in "%s"' % (value, selector))
def assertSelectOptions(self, selector, values):
"""
Asserts that the <SELECT> widget identified by `selector` has the
options with the given `values`.
"""
options = self.selenium.find_elements_by_css_selector('%s > option' % selector)
actual_values = []
for option in options:
actual_values.append(option.get_attribute('value'))
self.assertEqual(values, actual_values)
def has_css_class(self, selector, klass):
"""
Returns True if the element identified by `selector` has the CSS class
`klass`.
"""
return (self.selenium.find_element_by_css_selector(selector)
.get_attribute('class').find(klass) != -1)
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