Bug 1726465 - [marionette] In windowless mode allow closing the last content and chrome window. r=webdriver-reviewers,jdescottes

Depends on D134387

Differential Revision: https://phabricator.services.mozilla.com/D145574

testing/marionette/harness/marionette_harness/tests/unit/test_windowless.py

@@ -0,0 +1,58 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+from __future__ import absolute_import
+
+from marionette_driver import errors, Wait
+from marionette_harness import MarionetteTestCase
+
+
+class TestWindowless(MarionetteTestCase):
+    def setUp(self):
+        super(TestWindowless, self).setUp()
+
+        self.marionette.delete_session()
+        self.marionette.start_session({"moz:windowless": True})
+
+    def tearDown(self):
+        # Reset the browser and active WebDriver session
+        self.marionette.restart(in_app=True)
+        self.marionette.delete_session()
+
+        super(TestWindowless, self).tearDown()
+
+    def test_last_chrome_window_can_be_closed(self):
+        with self.marionette.using_context("chrome"):
+            handles = self.marionette.chrome_window_handles
+            self.assertGreater(len(handles), 0)
+            self.marionette.switch_to_window(handles[0])
+            self.marionette.close_chrome_window()
+            self.assertEqual(len(self.marionette.chrome_window_handles), 0)
+
+    def test_last_content_window_can_be_closed(self):
+        handles = self.marionette.window_handles
+        self.assertGreater(len(handles), 0)
+        self.marionette.switch_to_window(handles[0])
+        self.marionette.close()
+        self.assertEqual(len(self.marionette.window_handles), 0)
+
+    def test_no_window_handles_after_silent_restart(self):
+        # Check that windows are present, but not after a silent restart
+        handles = self.marionette.window_handles
+        self.assertGreater(len(handles), 0)
+
+        self.marionette.restart(silent=True)
+        with self.assertRaises(errors.TimeoutException):
+            wait = Wait(
+                self.marionette,
+                ignored_exceptions=errors.NoSuchWindowException,
+                timeout=5,
+            )
+            wait.until(lambda _: self.marionette.window_handles)
+
+        # After a normal restart a browser window will be opened again
+        self.marionette.restart(in_app=True)
+        handles = self.marionette.window_handles
+        self.assertGreater(len(handles), 0)
+        self.marionette.switch_to_window(handles[0])

testing/marionette/harness/marionette_harness/tests/unit/unit-tests.ini

@@ -71,7 +71,8 @@ expected = fail
 [test_execute_isolate.py]
 [test_click_scrolling.py]
 [test_profile_management.py]
-skip-if = manage_instance == false || (debug && ((os == 'mac') || (os == 'linux'))) # Bug 1450355
+skip-if =
+  manage_instance == false || (debug && ((os == 'mac') || (os == 'linux'))) # Bug 1450355
 [test_quit_restart.py]
 skip-if = manage_instance == false
 [test_context.py]
@@ -98,7 +99,8 @@ skip-if = manage_instance == false
 
 [test_select.py]
 [test_crash.py]
-skip-if = asan || manage_instance == false
+skip-if =
+  asan || manage_instance == false
 [test_localization.py]
 
 [test_reftest.py]
@@ -109,3 +111,6 @@ skip-if =
 [test_sendkeys_menupopup_chrome.py]
 
 [test_get_shadow_root.py]
+
+[test_windowless.py]
+skip-if = os != 'mac'  # only supported on MacOS