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# 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
from marionette_driver.by import By
from marionette_harness import MarionetteTestCase
class TestChromeElementCSS(MarionetteTestCase):
def get_element_computed_style(self, element, property):
return self.marionette.execute_script(
"""
const [el, prop] = arguments;
const elStyle = window.getComputedStyle(el);
return elStyle[prop];""",
script_args=(element, property),
sandbox=None,
)
def test_we_can_get_css_value_on_chrome_element(self):
with self.marionette.using_context("chrome"):
identity_icon = self.marionette.find_element(By.ID, "identity-icon")
favicon_image = identity_icon.value_of_css_property("list-style-image")
self.assertIn("chrome://", favicon_image)
identity_box = self.marionette.find_element(By.ID, "identity-box")
expected_bg_colour = self.get_element_computed_style(
identity_box, "backgroundColor"
)
actual_bg_colour = identity_box.value_of_css_property("background-color")
self.assertEqual(expected_bg_colour, actual_bg_colour)