Fix: Update based on a deprecation warning.

bjones1 · bjones1 · commit d1c5f946b04c · 2019-06-25T12:29:59.000-05:00
diff --git a/runestone/parsons/test/test_parsons.py b/runestone/parsons/test/test_parsons.py
@@ -171,7 +171,7 @@ def wait_and_close_alert(self, timeout = 3):
             WebDriverWait(self.driver, timeout).until(EC.alert_is_present(),
                                    'Timed out waiting for PA creation ' +
                                    'confirmation popup to appear.')
-            alert = self.driver.switch_to_alert()
+            alert = self.driver.switch_to.alert
             alert.accept()
             return True
         except TimeoutException:
