vs/ Test that pref for history is changed

Author: vsangereanMOZ

tests/preferences/test_never_remember_history.py

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+import os
+import time
+
+import pytest
+from selenium.webdriver import Firefox
+from selenium.webdriver.common.by import By
+
+from modules.page_object import AboutPrefs
+
+
+# make sure Firefox remembers history
+@pytest.fixture()
+def add_prefs():
+    return [("browser.privatebrowsing.autostart", False)]
+
+
+def test_never_remember_history(driver: Firefox, sys_platform: str):
+    """
+    C143604: Make sure to set the pref via about:preferences, then check in about:config that the pref has been changed
+    """
+
+    AboutPrefs(driver, category="privacy").open()
+
+    # Change the settings to not remember the browser history
+    history_menulist = driver.find_element(By.ID, "historyMode")
+    menulist_popup = history_menulist.find_element(By.TAG_NAME, "menupopup")
+    options = menulist_popup.find_elements(By.TAG_NAME, "menuitem")
+
+    # Scrolling for visibility
+    driver.execute_script("arguments[0].scrollIntoView();", history_menulist)
+    time.sleep(1)
+    current_selection = history_menulist.get_attribute("value")
+
+    if current_selection != "dontremember":
+        for option in options:
+            if option.get_attribute("value") == "dontremember":
+                option.click()
+                break
+
+    # Verify that the pref is set to True
+    profile_path = driver.capabilities["moz:profile"]
+    prefs_file_path = os.path.join(profile_path, "prefs.js")
+
+    # Read the contents of the 'prefs.js' file to check for the preference
+    with open(prefs_file_path, "r") as prefs_file:
+        prefs_content = prefs_file.read()
+
+    # Check that the preference is now True
+    preference_string = 'user_pref("browser.privatebrowsing.autostart", true);'
+    assert (
+        preference_string in prefs_content
+    ), f"The preference {preference_string} is not set correctly."