1 files changed, 54 insertions, 0 deletions
diff --git a/toolkit/modules/tests/marionette/test_first_startup.py b/toolkit/modules/tests/marionette/test_first_startup.py
new file mode 100644
index 0000000000..6d8bbce02d
--- /dev/null
+++ b/toolkit/modules/tests/marionette/test_first_startup.py
@@ -0,0 +1,54 @@
+# 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 marionette_harness import MarionetteTestCase
+
+
+class TestFirstStartup(MarionetteTestCase):
+    def setUp(self):
+        MarionetteTestCase.setUp(self)
+        self.marionette.quit()
+        self.marionette.instance.prefs = {
+            "browser.startup.homepage_override.mstone": ""
+        }
+        self.marionette.instance.app_args = ["-first-startup"]
+
+    def test_new_profile(self):
+        """Test launching with --first-startup when a new profile was created.
+
+        Launches the browser with --first-startup on a freshly created profile
+        and then ensures that FirstStartup.init ran successfully.
+        """
+
+        self.marionette.instance.switch_profile()
+        self.marionette.start_session()
+        self.marionette.set_context("chrome")
+        firstStartupInittedSuccessfully = self.marionette.execute_script(
+            """
+          const { FirstStartup } = ChromeUtils.importESModule("resource://gre/modules/FirstStartup.sys.mjs");
+          return FirstStartup.state == FirstStartup.SUCCESS
+        """
+        )
+
+        self.assertTrue(
+            firstStartupInittedSuccessfully, "FirstStartup initted successfully"
+        )
+
+    def test_existing_profile(self):
+        """Test launching with --first-startup with a pre-existing profile.
+
+        Launches the browser with --first-startup on a profile that has been
+        run before. Ensures that FirstStartup.init was never run.
+        """
+
+        self.marionette.start_session()
+        self.marionette.set_context("chrome")
+        firstStartupSkipped = self.marionette.execute_script(
+            """
+          const { FirstStartup } = ChromeUtils.importESModule("resource://gre/modules/FirstStartup.sys.mjs");
+          return FirstStartup.state == FirstStartup.NOT_STARTED
+        """
+        )
+
+        self.assertTrue(firstStartupSkipped, "FirstStartup init skipped")