Made SeleniumTests.test_select_multiple less flaky by improving Selenium waits.

1 files changed, 17 insertions, 6 deletions

diff --git a/tests/admin_views/test_autocomplete_view.py b/tests/admin_views/test_autocomplete_view.py
index 968f160c8e..68bfacb016 100644
--- a/tests/admin_views/test_autocomplete_view.py
+++ b/tests/admin_views/test_autocomplete_view.py
@@ -493,6 +493,7 @@ class SeleniumTests(AdminSeleniumTestCase):
         )
 
     def test_select_multiple(self):
+        from selenium.common import NoSuchElementException
         from selenium.webdriver.common.by import By
         from selenium.webdriver.common.keys import Keys
         from selenium.webdriver.support.ui import Select
@@ -519,7 +520,7 @@ class SeleniumTests(AdminSeleniumTestCase):
         result_container = self.selenium.find_element(
             By.CSS_SELECTOR, ".select2-results"
         )
-        self.assertTrue(result_container.is_displayed())
+        self.assertIs(result_container.is_displayed(), True)
         self.assertCountSeleniumElements(
             ".select2-results__option",
             PAGINATOR_SIZE + 1,
@@ -527,8 +528,8 @@ class SeleniumTests(AdminSeleniumTestCase):
         )
         search = self.selenium.find_element(By.CSS_SELECTOR, ".select2-search__field")
         # Load next page of results by scrolling to the bottom of the list.
-        with self.select2_ajax_wait():
-            for _ in range(PAGINATOR_SIZE + 1):
+        for _ in range(PAGINATOR_SIZE + 1):
+            with self.select2_ajax_wait():
                 search.send_keys(Keys.ARROW_DOWN)
         self.assertCountSeleniumElements(
             ".select2-results__option", 31, root_element=result_container
@@ -537,11 +538,11 @@ class SeleniumTests(AdminSeleniumTestCase):
         with self.select2_ajax_wait():
             search.send_keys("Who")
             # Ajax request is delayed.
-            self.assertTrue(result_container.is_displayed())
+            self.assertIs(result_container.is_displayed(), True)
             self.assertCountSeleniumElements(
                 ".select2-results__option", 32, root_element=result_container
             )
-        self.assertTrue(result_container.is_displayed())
+        self.assertIs(result_container.is_displayed(), True)
 
         self.assertCountSeleniumElements(
             ".select2-results__option", 1, root_element=result_container
@@ -549,8 +550,18 @@ class SeleniumTests(AdminSeleniumTestCase):
         with self.select2_ajax_wait():
             # Select the result.
             search.send_keys(Keys.RETURN)
-            # Reopen the dropdown and add the first result to the selection.
+        with self.disable_implicit_wait():
+            with self.assertRaises(NoSuchElementException):
+                self.selenium.find_element(By.CSS_SELECTOR, ".select2-results")
+        with self.select2_ajax_wait():
+            # Reopen the dropdown.
             elem.click()
+        result_container = self.selenium.find_element(
+            By.CSS_SELECTOR, ".select2-results"
+        )
+        self.assertIs(result_container.is_displayed(), True)
+        with self.select2_ajax_wait():
+            # Add the first result to the selection.
             search.send_keys(Keys.ARROW_DOWN)
             search.send_keys(Keys.RETURN)
         select = Select(self.selenium.find_element(By.ID, "id_related_questions"))