From d46b11f8dab4eba79ec0c9ddb2dff186ced94032 Mon Sep 17 00:00:00 2001
From: JensDiemer <git@jensdiemer.de>
Date: Wed, 19 Feb 2020 14:21:37 +0100
Subject: [PATCH] set "accept_languages" and disable "headless" mode

It seems that we can't set "accept_languages" in headless mode, see:
https://bugs.chromium.org/p/chromedriver/issues/detail?id=3358
---
 django_tools/selenium/chromedriver.py        | 9 ++++++++-
 django_tools_tests/test_unittest_selenium.py | 2 ++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/django_tools/selenium/chromedriver.py b/django_tools/selenium/chromedriver.py
index 45cc670..c02847a 100644
--- a/django_tools/selenium/chromedriver.py
+++ b/django_tools/selenium/chromedriver.py
@@ -43,7 +43,11 @@ def test_admin_login_page(self):
     """
     filename = "chromedriver"
 
-    options = ("--no-sandbox", "--headless", "--disable-gpu")
+    options = (
+        "--no-sandbox",
+        # "--headless", ## see: https://bugs.chromium.org/p/chromedriver/issues/detail?id=3358
+        "--disable-gpu"
+    )
     desired_capabilities = {
         "loggingPrefs": {
             "browser": "ALL",
@@ -53,12 +57,15 @@ def test_admin_login_page(self):
             "server": "ALL"
         }
     }
+    accept_languages = 'en'
 
     @classmethod
     def setUpClass(cls):
 
         options = webdriver.ChromeOptions()
         options.add_experimental_option('w3c', False)  # needed to get browser logs
+        options.add_experimental_option('prefs', {'intl.accept_languages': cls.accept_languages})
+
         for argument in cls.options:
             options.add_argument(argument)
 
diff --git a/django_tools_tests/test_unittest_selenium.py b/django_tools_tests/test_unittest_selenium.py
index cc954d1..35d064c 100644
--- a/django_tools_tests/test_unittest_selenium.py
+++ b/django_tools_tests/test_unittest_selenium.py
@@ -28,6 +28,7 @@
 class ExampleChromiumTests(SeleniumChromiumStaticLiveServerTestCase):
     def test_admin_login_page(self):
         self.driver.get(self.live_server_url + "/admin/login/")
+        assert self.driver.execute_script('return window.navigator.languages') == ['en']
         self.assert_equal_page_title("Log in | Django site admin")
         self.assert_in_page_source('<form action="/admin/login/" method="post" id="login-form">')
         self.assert_no_javascript_alert()
@@ -37,6 +38,7 @@ def test_admin_login_page(self):
 class ExampleFirefoxTests(SeleniumFirefoxStaticLiveServerTestCase):
     def test_admin_login_page(self):
         self.driver.get(self.live_server_url + "/admin/login/")
+        assert self.driver.execute_script('return window.navigator.languages') == ['en']
         self.assert_equal_page_title("Log in | Django site admin")
         self.assert_in_page_source('<form action="/admin/login/" method="post" id="login-form">')
         self.assert_no_javascript_alert()