Fix race condition in PF4 progressbar (#1448)

when the progress bar disappears between the
is_displayed query and the current_progress query
a NoSuchElement exception is raised

(cherry picked from commit 1661b6c)

airgun/widgets.py

@@ -2233,6 +2233,14 @@ def read(self):
 class PF4ProgressBar(PF4Progress):
  locator = './/div[contains(@class, "pf-c-wizard__main-body")]'
 
+ @property
+ def is_completed(self):
+ """Boolean value whether progress bar is finished or not"""
+ try:
+ return self.current_progress == '100'
+ except NoSuchElementException:
+ return False
+
  def wait_for_result(self, timeout=600, delay=1):
  """Waits for progress bar to finish. By default checks whether progress
  bar is completed every second for 10 minutes.
@@ -2241,7 +2249,7 @@ def wait_for_result(self, timeout=600, delay=1):
  """
  wait_for(lambda: self.is_displayed, timeout=30, delay=delay, logger=self.logger)
  wait_for(
- lambda: not self.is_displayed or self.current_progress == '100',
+ lambda: not self.is_displayed or self.is_completed,
  timeout=timeout,
  delay=delay,
  logger=self.logger,