BB 45120: Add tests for Base Browser

[DEFAULT]

tags = "base-browser"

["test_new_window.py"]

from marionette_harness import MarionetteTestCase, WindowManagerMixin

class TestNewWindow(WindowManagerMixin, MarionetteTestCase):

    def tearDown(self):

        self.close_all_windows()

        super().tearDown()

    def test_open_new_window(self):

        with self.marionette.using_context("chrome"):

            new_window = self.open_window()

        self.assertEqual(

            len(self.marionette.chrome_window_handles),

            len(self.start_windows) + 1,

            "A new browser window should have been opened.",

        )

        self.marionette.switch_to_window(new_window)

        self.marionette.navigate("about:blank")

        self.assertEqual(

            self.marionette.get_url(),

            "about:blank",

            "Should be able to navigate in the newly opened window.",

        )