def profile(self):
"""
Runs the test specified by the test file given to the constructor, and returns a list of HAR files (one for each
navigation)
"""
# list of list of har files: [[hars from run 1], [hars from run 2], ...]
iteration_hars = []
for x in range(0, self._iterations):
hars = []
self.clear_http_cache()
self.clear_cookies()
# Navigate to about:blank, to reset memory, etc.
self._page_event_handler = PageEventHandler()
self.start_page_event_monitoring(
self._page_event_handler.process_event)
self.navigate_to('about:blank')
wait_until(lambda: self._page_event_handler.page_loaded)
self.stop_page_event_monitoring()
for navigation in self._test['navigations']:
assert len(
navigation
) > 0, 'Each navigation must have at least one action'
# do all the actions except the last one, because the last action causes the actual page navigation
for i in range(0, len(navigation) - 1):
self.process_action(navigation[i])
self._network_event_handler = NetworkEventHandler()
try:
wait_for_page_load_event = navigation[-1][
'wait-for-page-load']
except KeyError:
wait_for_page_load_event = True
try:
self._page_load_notifier = PageLoadNotifier(
wait_for_page_load_event,
navigation[-1]['network-timeout'])
except KeyError:
self._page_load_notifier = PageLoadNotifier(
wait_for_page_load_event)
self._timeline_event_handler = TimelineEventHandler()
self.start_network_monitoring(
self._network_event_handler.process_event)
self.start_timeline_monitoring(
self._timeline_event_handler.process_event)
self.start_page_event_monitoring(
self._page_load_notifier.process_page_event)
self._communicator.add_domain_callback(
'Network', 'page_load_notifier',
self._page_load_notifier.process_network_event)
self._communicator.add_domain_callback(
'Timeline', 'page_load_notifier',
self._page_load_notifier.process_timeline_event)
self.start_css_selector_profiling()
self.process_action(navigation[-1])
wait_until(lambda: self._page_load_notifier.page_loaded())
self.stop_page_event_monitoring()
self.stop_timeline_monitoring()
self.stop_network_monitoring()
self._css_profiler_handler = CSSProfileParser(
self.stop_css_selector_profiling())
hars.append(self.make_har(navigation[-1]['page-name']))
iteration_hars.append(hars)
return iteration_hars
