new functional_tests.test_sharing FT for sharing lists; create_pre_authenticated_session() moved from .test_my_lists to .base

src/functional_tests/test_sharing.py

@@ -0,0 +1,34 @@
+from selenium import webdriver
+from selenium.webdriver.common.by import By
+from .base import FunctionalTest
+
+
+# Helper fns
+def quit_if_possible(browser):
+    try:
+        browser.quit()
+    except:
+        pass
+
+
+# Test mdls
+class SharingTest(FunctionalTest):
+    def test_can_share_a_list_with_another_user(self):
+        self.create_pre_authenticated_session("discoman@example.com")
+        disco_browser = self.browser
+        self.addCleanup(lambda: quit_if_possible(disco_browser))
+
+        ali_browser = webdriver.Firefox()
+        self.addCleanup(lambda: quit_if_possible(ali_browser))
+        self.browser = ali_browser
+        self.create_pre_authenticated_session("alice@example.com")
+
+        self.browser = disco_browser
+        self.browser.get(self.live_server_url)
+        self.add_list_item("Send help")
+
+        share_box = self.browser.find_element(By.CSS_SELECTOR, 'input[name="shareable"]')
+        self.assertEqual(
+            share_box.get_attribute("placeholder"),
+            "friend@example.com",
+        )