Merge "Fix longtime tests" into stable/mitaka
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Jenkins
Gerrit Code Review
commit
26734a0d5f
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@ -19,16 +19,9 @@
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import logging
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import os
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import time
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LOG = logging.getLogger(__name__)
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class ElementNotReloadableException(Exception):
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"""Raised when reload is not possible."""
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pass
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from selenium.common import exceptions
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from selenium.webdriver.common import by
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from selenium.webdriver.common import desired_capabilities as dc
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@ -72,32 +65,15 @@ class WebElementWrapper(WrapperFindOverride, webelement.WebElement):
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actualStaleElementReferenceException is raised.
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"""
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STALE_ELEMENT_REFERENCE_WAIT = 0.5
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STALE_ELEMENT_REFERENCE_MAX_TRY = 10
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def __init__(self, parent, id_, locator, src_element, index=None):
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super(WebElementWrapper, self).__init__(parent, id_)
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self.locator = locator
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self.src_element = src_element
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# StaleElementReferenceException occurrence counter
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self.stale_reference_occurrence = 0
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# storing if web element reload succeed or not
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# in case of fail StaleElementReferenceException is raised
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self.reload_failed = False
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# in case element was looked up previously via find_elements
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# we need his position in the returned list
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self.index = index
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# if reloading of some other web element is in progress
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# StaleElementReferenceException is not raised within current
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# context
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self.web_element_reload = False
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def reload_request(self, locator, index=None):
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self.web_element_reload = True
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try:
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# element was found out via find_elements
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if index is not None:
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@ -107,64 +83,32 @@ class WebElementWrapper(WrapperFindOverride, webelement.WebElement):
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web_el = self.src_element.find_element(*locator)
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except (exceptions.NoSuchElementException, IndexError):
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return False
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self.web_element_reload = False
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return web_el
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def _reload_element(self):
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"""Method for starting reload process on current instance."""
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web_el = self.src_element.reload_request(self.locator, self.index)
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if not web_el:
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return
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return False
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self._parent = web_el.parent
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self._id = web_el.id
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return True
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def _execute(self, command, params=None):
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"""Overriding in order to catch StaleElementReferenceException."""
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result = None
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while True:
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# (schipiga): not need to use while True, trying to catch StaleElement
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# exception, because driver.implicitly_wait delegates this to browser.
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# Just we need to catch StaleElement exception, reload chain of element
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# parents and then to execute command again.
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repeat = range(2)
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for i in repeat:
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try:
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result = super(WebElementWrapper, self)._execute(command,
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params)
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break
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return super(WebElementWrapper, self)._execute(command, params)
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except exceptions.StaleElementReferenceException:
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# in case we reach the limit
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# STALE_ELEMENT_REFERENCE_MAX_TRY
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# it is very probable that it is programmer fault
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if self.reload_failed or self.stale_reference_occurrence \
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> self.STALE_ELEMENT_REFERENCE_MAX_TRY:
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if i == repeat[-1]:
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raise
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if not self._reload_element():
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raise
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# this is either programmer fault (bad logic in accessing
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# elements) or web page content is been loaded via ajax,
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# let's go with the second one and wait
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# STALE_ELEMENT_REFERENCE_WAIT till the assumed page
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# content is loaded and try to execute the whole process
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# STALE_ELEMENT_REFERENCE_MAX_TRY times in case of failures
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time.sleep(self.STALE_ELEMENT_REFERENCE_WAIT)
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# try to reload the web element if result is false it
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# means that request has gone to the driver and he did not
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# find the element -> must be programmer fault, because it
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# seems we are on entirely different page
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try:
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self._reload_element()
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except ElementNotReloadableException:
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# In case this element was responsible only for loading
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# some other element raise the exception further
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if self.web_element_reload:
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raise
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else:
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self.reload_failed = True
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# increment occurrences
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self.stale_reference_occurrence += 1
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# reset counter
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self.stale_reference_occurrence = 0
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return result
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class WebDriverWrapper(WrapperFindOverride, WebDriver):
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@ -180,4 +124,4 @@ class WebDriverWrapper(WrapperFindOverride, WebDriver):
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web_el = self.find_element(*locator)
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return web_el
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except (exceptions.NoSuchElementException, IndexError):
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raise ElementNotReloadableException()
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return False
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@ -81,7 +81,7 @@ class BaseWebObject(unittest.TestCase):
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self.driver.implicitly_wait(0)
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def _turn_on_implicit_wait(self):
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self.driver.implicitly_wait(self.conf.selenium.page_timeout)
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self.driver.implicitly_wait(self.conf.selenium.implicit_wait)
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def _wait_until(self, predicate, timeout=None, poll_frequency=0.5):
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"""Wait until the value returned by predicate is not False or
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