test: ckm chat history locator updated

Author: Avijit-Microsoft

tests/e2e-test/pages/HomePage.py

@@ -14,7 +14,7 @@ class HomePage(BasePage):
     SEND_BUTTON = "//button[@title='Send Question']"
     SHOW_CHAT_HISTORY_BUTTON = "//button[normalize-space()='Show Chat History']"
     HIDE_CHAT_HISTORY_BUTTON = "//button[normalize-space()='Hide Chat History']"
-    CHAT_HISTORY_NAME = "//div[contains(@class, 'ChatHistoryListItemCell_chatTitle')]"
+    CHAT_HISTORY_NAME = "//div[contains(@class, 'chatTitle')]"
     CLEAR_CHAT_HISTORY_MENU = "//button[@id='moreButton']"
     CLEAR_CHAT_HISTORY = "//button[@role='menuitem']"
     REFERENCE_LINKS_IN_RESPONSE = "//span[@role='button' and contains(@class, 'citationContainer')]"
@@ -85,13 +85,36 @@ def click_send_button(self):
 
 
     def show_chat_history(self):
+        # Click "Show Chat History" and wait for the panel + chat title items to render.
+        # The /history/list API call can be slow on first open after a fresh conversation,
+        # so we retry the click once and use a generous timeout before failing.
         self.page.locator(self.SHOW_CHAT_HISTORY_BUTTON).click()
         self.page.wait_for_load_state('networkidle')
-        self.page.wait_for_timeout(2000)
+        self.page.wait_for_timeout(3000)
+
+        chat_title_locator = self.page.locator(self.CHAT_HISTORY_NAME).first
         try:
-            expect(self.page.locator(self.CHAT_HISTORY_NAME)).to_be_visible(timeout=9000)
-        except AssertionError:
-            raise AssertionError("Chat history name was not visible on the page within the expected time.")
+            expect(chat_title_locator).to_be_visible(timeout=30000)
+        except Exception as first_err:
+            # Retry once: close and reopen the panel in case the list didn't populate.
+            logger.warning("Chat history items not visible on first attempt, retrying...")
+            try:
+                # Best-effort close: ignore any errors here so retry can still proceed.
+                try:
+                    if self.page.locator(self.HIDE_CHAT_HISTORY_BUTTON).is_visible():
+                        self.page.locator(self.HIDE_CHAT_HISTORY_BUTTON).click()
+                        self.page.wait_for_timeout(2000)
+                except Exception as close_err:
+                    logger.warning(f"Best-effort close of chat history panel failed: {close_err}")
+
+                self.page.locator(self.SHOW_CHAT_HISTORY_BUTTON).click()
+                self.page.wait_for_load_state('networkidle')
+                self.page.wait_for_timeout(3000)
+                expect(chat_title_locator).to_be_visible(timeout=30000)
+            except Exception as retry_err:
+                raise AssertionError(
+                    "Chat history name was not visible on the page within the expected time."
+                ) from retry_err
 
     def delete_chat_history(self):
         self.page.locator(self.SHOW_CHAT_HISTORY_BUTTON).click()