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from contextlib import contextmanager
from django.contrib.staticfiles.testing import StaticLiveServerTestCase
from django.test import modify_settings
from django.test.selenium import SeleniumTestCase
from django.utils.deprecation import MiddlewareMixin
from django.utils.translation import gettext as _
class CSPMiddleware(MiddlewareMixin):
"""The admin's JavaScript should be compatible with CSP."""
def process_response(self, request, response):
response.headers['Content-Security-Policy'] = "default-src 'self'"
return response
@modify_settings(MIDDLEWARE={'append': 'django.contrib.admin.tests.CSPMiddleware'})
class AdminSeleniumTestCase(SeleniumTestCase, StaticLiveServerTestCase):
available_apps = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
]
def wait_until(self, callback, timeout=10):
"""
Block the execution of the tests until the specified callback returns a
value that is not falsy. This method 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_for_and_switch_to_popup(self, num_windows=2, timeout=10):
"""
Block until `num_windows` are present and are ready (usually 2, but can
be overridden in the case of pop-ups opening other pop-ups). Switch the
current window to the new pop-up.
"""
self.wait_until(lambda d: len(d.window_handles) == num_windows, timeout)
self.selenium.switch_to.window(self.selenium.window_handles[-1])
self.wait_page_ready()
def wait_for(self, css_selector, timeout=10):
"""
Block 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):
"""
Block 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):
"""
Block 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_until_visible(self, css_selector, timeout=10):
"""
Block until the element described by the CSS selector is visible.
"""
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as ec
self.wait_until(
ec.visibility_of_element_located((By.CSS_SELECTOR, css_selector)),
timeout
)
def wait_until_invisible(self, css_selector, timeout=10):
"""
Block until the element described by the CSS selector is invisible.
"""
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as ec
self.wait_until(
ec.invisibility_of_element_located((By.CSS_SELECTOR, css_selector)),
timeout
)
def wait_page_ready(self, timeout=10):
"""
Block until the page is ready.
"""
self.wait_until(
lambda driver: driver.execute_script('return document.readyState;') == 'complete',
timeout,
)
@contextmanager
def wait_page_loaded(self, timeout=10):
"""
Block until a new page has loaded and is ready.
"""
from selenium.webdriver.support import expected_conditions as ec
old_page = self.selenium.find_element_by_tag_name('html')
yield
# Wait for the next page to be loaded
self.wait_until(ec.staleness_of(old_page), timeout=timeout)
self.wait_page_ready(timeout=timeout)
def admin_login(self, username, password, login_url='/admin/'):
"""
Log in to 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')
with self.wait_page_loaded():
self.selenium.find_element_by_xpath('//input[@value="%s"]' % login_text).click()
def select_option(self, selector, value):
"""
Select the <OPTION> with the value `value` inside the <SELECT> widget
identified by the CSS selector `selector`.
"""
from selenium.webdriver.support.ui import Select
select = Select(self.selenium.find_element_by_css_selector(selector))
select.select_by_value(value)
def deselect_option(self, selector, value):
"""
Deselect the <OPTION> with the value `value` inside the <SELECT> widget
identified by the CSS selector `selector`.
"""
from selenium.webdriver.support.ui import Select
select = Select(self.selenium.find_element_by_css_selector(selector))
select.deselect_by_value(value)
def _assertOptionsValues(self, options_selector, values):
if values:
options = self.selenium.find_elements_by_css_selector(options_selector)
actual_values = []
for option in options:
actual_values.append(option.get_attribute('value'))
self.assertEqual(values, actual_values)
else:
# Prevent the `find_elements_by_css_selector` call from blocking
# if the selector doesn't match any options as we expect it
# to be the case.
with self.disable_implicit_wait():
self.wait_until(
lambda driver: not driver.find_elements_by_css_selector(options_selector)
)
def assertSelectOptions(self, selector, values):
"""
Assert that the <SELECT> widget identified by `selector` has the
options with the given `values`.
"""
self._assertOptionsValues("%s > option" % selector, values)
def assertSelectedOptions(self, selector, values):
"""
Assert that the <SELECT> widget identified by `selector` has the
selected options with the given `values`.
"""
self._assertOptionsValues("%s > option:checked" % selector, values)
def has_css_class(self, selector, klass):
"""
Return 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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