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423 lines
13 KiB
423 lines
13 KiB
# Licensed to the Software Freedom Conservancy (SFC) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The SFC licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from selenium.common.exceptions import NoSuchElementException
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from selenium.common.exceptions import NoSuchFrameException
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from selenium.common.exceptions import StaleElementReferenceException
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from selenium.common.exceptions import WebDriverException
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from selenium.common.exceptions import NoAlertPresentException
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from selenium.webdriver.remote.webdriver import WebElement
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"""
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* Canned "Expected Conditions" which are generally useful within webdriver
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* tests.
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"""
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class title_is(object):
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"""An expectation for checking the title of a page.
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title is the expected title, which must be an exact match
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returns True if the title matches, false otherwise."""
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def __init__(self, title):
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self.title = title
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def __call__(self, driver):
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return self.title == driver.title
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class title_contains(object):
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""" An expectation for checking that the title contains a case-sensitive
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substring. title is the fragment of title expected
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returns True when the title matches, False otherwise
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"""
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def __init__(self, title):
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self.title = title
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def __call__(self, driver):
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return self.title in driver.title
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class presence_of_element_located(object):
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""" An expectation for checking that an element is present on the DOM
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of a page. This does not necessarily mean that the element is visible.
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locator - used to find the element
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returns the WebElement once it is located
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"""
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def __init__(self, locator):
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self.locator = locator
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def __call__(self, driver):
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return _find_element(driver, self.locator)
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class url_contains(object):
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""" An expectation for checking that the current url contains a
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case-sensitive substring.
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url is the fragment of url expected,
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returns True when the url matches, False otherwise
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"""
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def __init__(self, url):
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self.url = url
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def __call__(self, driver):
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return self.url in driver.current_url
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class url_matches(object):
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"""An expectation for checking the current url.
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pattern is the expected pattern, which must be an exact match
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returns True if the url matches, false otherwise."""
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def __init__(self, pattern):
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self.pattern = pattern
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def __call__(self, driver):
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import re
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match = re.search(self.pattern, driver.current_url)
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return match is not None
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class url_to_be(object):
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"""An expectation for checking the current url.
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url is the expected url, which must be an exact match
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returns True if the url matches, false otherwise."""
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def __init__(self, url):
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self.url = url
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def __call__(self, driver):
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return self.url == driver.current_url
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class url_changes(object):
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"""An expectation for checking the current url.
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url is the expected url, which must not be an exact match
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returns True if the url is different, false otherwise."""
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def __init__(self, url):
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self.url = url
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def __call__(self, driver):
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return self.url != driver.current_url
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class visibility_of_element_located(object):
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""" An expectation for checking that an element is present on the DOM of a
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page and visible. Visibility means that the element is not only displayed
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but also has a height and width that is greater than 0.
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locator - used to find the element
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returns the WebElement once it is located and visible
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"""
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def __init__(self, locator):
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self.locator = locator
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def __call__(self, driver):
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try:
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return _element_if_visible(_find_element(driver, self.locator))
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except StaleElementReferenceException:
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return False
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class visibility_of(object):
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""" An expectation for checking that an element, known to be present on the
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DOM of a page, is visible. Visibility means that the element is not only
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displayed but also has a height and width that is greater than 0.
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element is the WebElement
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returns the (same) WebElement once it is visible
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"""
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def __init__(self, element):
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self.element = element
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def __call__(self, ignored):
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return _element_if_visible(self.element)
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def _element_if_visible(element, visibility=True):
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return element if element.is_displayed() == visibility else False
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class presence_of_all_elements_located(object):
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""" An expectation for checking that there is at least one element present
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on a web page.
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locator is used to find the element
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returns the list of WebElements once they are located
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"""
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def __init__(self, locator):
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self.locator = locator
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def __call__(self, driver):
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return _find_elements(driver, self.locator)
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class visibility_of_any_elements_located(object):
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""" An expectation for checking that there is at least one element visible
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on a web page.
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locator is used to find the element
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returns the list of WebElements once they are located
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"""
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def __init__(self, locator):
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self.locator = locator
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def __call__(self, driver):
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return [element for element in _find_elements(driver, self.locator) if _element_if_visible(element)]
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class visibility_of_all_elements_located(object):
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""" An expectation for checking that all elements are present on the DOM of a
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page and visible. Visibility means that the elements are not only displayed
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but also has a height and width that is greater than 0.
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locator - used to find the elements
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returns the list of WebElements once they are located and visible
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"""
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def __init__(self, locator):
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self.locator = locator
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def __call__(self, driver):
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try:
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elements = _find_elements(driver, self.locator)
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for element in elements:
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if _element_if_visible(element, visibility=False):
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return False
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return elements
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except StaleElementReferenceException:
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return False
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class text_to_be_present_in_element(object):
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""" An expectation for checking if the given text is present in the
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specified element.
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locator, text
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"""
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def __init__(self, locator, text_):
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self.locator = locator
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self.text = text_
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def __call__(self, driver):
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try:
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element_text = _find_element(driver, self.locator).text
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return self.text in element_text
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except StaleElementReferenceException:
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return False
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class text_to_be_present_in_element_value(object):
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"""
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An expectation for checking if the given text is present in the element's
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locator, text
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"""
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def __init__(self, locator, text_):
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self.locator = locator
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self.text = text_
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def __call__(self, driver):
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try:
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element_text = _find_element(driver,
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self.locator).get_attribute("value")
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if element_text:
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return self.text in element_text
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else:
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return False
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except StaleElementReferenceException:
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return False
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class frame_to_be_available_and_switch_to_it(object):
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""" An expectation for checking whether the given frame is available to
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switch to. If the frame is available it switches the given driver to the
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specified frame.
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"""
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def __init__(self, locator):
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self.frame_locator = locator
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def __call__(self, driver):
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try:
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if isinstance(self.frame_locator, tuple):
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driver.switch_to.frame(_find_element(driver,
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self.frame_locator))
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else:
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driver.switch_to.frame(self.frame_locator)
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return True
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except NoSuchFrameException:
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return False
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class invisibility_of_element_located(object):
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""" An Expectation for checking that an element is either invisible or not
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present on the DOM.
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locator used to find the element
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"""
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def __init__(self, locator):
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self.target = locator
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def __call__(self, driver):
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try:
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target = self.target
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if not isinstance(target, WebElement):
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target = _find_element(driver, target)
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return _element_if_visible(target, False)
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except (NoSuchElementException, StaleElementReferenceException):
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# In the case of NoSuchElement, returns true because the element is
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# not present in DOM. The try block checks if the element is present
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# but is invisible.
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# In the case of StaleElementReference, returns true because stale
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# element reference implies that element is no longer visible.
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return True
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class invisibility_of_element(invisibility_of_element_located):
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""" An Expectation for checking that an element is either invisible or not
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present on the DOM.
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element is either a locator (text) or an WebElement
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"""
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def __init(self, element):
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self.target = element
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class element_to_be_clickable(object):
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""" An Expectation for checking an element is visible and enabled such that
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you can click it."""
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def __init__(self, locator):
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self.locator = locator
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def __call__(self, driver):
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element = visibility_of_element_located(self.locator)(driver)
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if element and element.is_enabled():
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return element
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else:
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return False
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class staleness_of(object):
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""" Wait until an element is no longer attached to the DOM.
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element is the element to wait for.
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returns False if the element is still attached to the DOM, true otherwise.
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"""
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def __init__(self, element):
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self.element = element
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def __call__(self, ignored):
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try:
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# Calling any method forces a staleness check
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self.element.is_enabled()
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return False
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except StaleElementReferenceException:
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return True
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class element_to_be_selected(object):
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""" An expectation for checking the selection is selected.
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element is WebElement object
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"""
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def __init__(self, element):
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self.element = element
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def __call__(self, ignored):
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return self.element.is_selected()
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class element_located_to_be_selected(object):
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"""An expectation for the element to be located is selected.
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locator is a tuple of (by, path)"""
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def __init__(self, locator):
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self.locator = locator
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def __call__(self, driver):
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return _find_element(driver, self.locator).is_selected()
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class element_selection_state_to_be(object):
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""" An expectation for checking if the given element is selected.
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element is WebElement object
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is_selected is a Boolean."
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"""
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def __init__(self, element, is_selected):
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self.element = element
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self.is_selected = is_selected
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def __call__(self, ignored):
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return self.element.is_selected() == self.is_selected
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class element_located_selection_state_to_be(object):
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""" An expectation to locate an element and check if the selection state
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specified is in that state.
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locator is a tuple of (by, path)
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is_selected is a boolean
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"""
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def __init__(self, locator, is_selected):
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self.locator = locator
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self.is_selected = is_selected
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def __call__(self, driver):
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try:
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element = _find_element(driver, self.locator)
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return element.is_selected() == self.is_selected
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except StaleElementReferenceException:
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return False
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class number_of_windows_to_be(object):
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""" An expectation for the number of windows to be a certain value."""
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def __init__(self, num_windows):
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self.num_windows = num_windows
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def __call__(self, driver):
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return len(driver.window_handles) == self.num_windows
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class new_window_is_opened(object):
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""" An expectation that a new window will be opened and have the number of
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windows handles increase"""
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def __init__(self, current_handles):
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self.current_handles = current_handles
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def __call__(self, driver):
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return len(driver.window_handles) > len(self.current_handles)
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class alert_is_present(object):
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""" Expect an alert to be present."""
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def __init__(self):
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pass
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def __call__(self, driver):
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try:
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alert = driver.switch_to.alert
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return alert
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except NoAlertPresentException:
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return False
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def _find_element(driver, by):
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"""Looks up an element. Logs and re-raises ``WebDriverException``
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if thrown."""
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try:
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return driver.find_element(*by)
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except NoSuchElementException as e:
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raise e
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except WebDriverException as e:
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raise e
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def _find_elements(driver, by):
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try:
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return driver.find_elements(*by)
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except WebDriverException as e:
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raise e
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