fixed button click issue while repacing subtitles.

common/test/acceptance/pages/studio/video/video.py

@@ -10,6 +10,7 @@ from ....tests.helpers import YouTubeStubConfig
 from ...lms.video.video import VideoPage
 from ...common.utils import wait_for_notification
 from selenium.webdriver.common.keys import Keys
+from selenium.webdriver.common.action_chains import ActionChains
 
 
 CLASS_SELECTORS = {
@@ -135,6 +136,13 @@ class VideoComponentPage(VideoPage):
         """
         return self.q(css=CLASS_SELECTORS['video_controls']).visible
 
+    def click_button_subtitles(self):
+        """
+        Click .setting-replace button after first hovering to it.
+        """
+        element = self.q(css='.setting-replace')[0]
+        ActionChains(self.browser).move_to_element(element).click(element).perform()
+
     def click_button(self, button_name, index=0, require_notification=False):
         """
         Click on a button as specified by `button_name`

common/test/acceptance/tests/video/test_studio_video_transcript.py

@@ -177,7 +177,7 @@ class VideoTranscriptTest(CMSVideoBaseTest):
         self.video.set_url_field('http://youtu.be/t_neq_exist', 1)
         self.assertEqual(self.video.message('status'), 'Timed Transcript Conflict')
         self.assertTrue(self.video.is_transcript_button_visible('replace'))
-        self.video.click_button('replace')
+        self.video.click_button_subtitles()
         self.assertEqual(self.video.message('status'), 'Timed Transcript Found')
         self.open_advanced_tab()
         self.assertTrue(self.video.verify_field_value('Default Timed Transcript', 't_neq_exist'))