# Copyright 2020 The Cobalt Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
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"""Tests correct visibility changes during and after freeze event."""

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function

from cobalt.black_box_tests import black_box_tests
from cobalt.black_box_tests.threaded_web_server import ThreadedWebServer


class FreezeVisibilityTest(black_box_tests.BlackBoxTestCase):
  """Verify correct visibility changes during and after freeze event."""

  def test_freeze_visibility(self):

    with ThreadedWebServer(binding_address=self.GetBindingAddress()) as server:
      url = server.GetURL(file_name='testdata/freeze_visibility.html')

      with self.CreateCobaltRunner(url=url) as runner:
        runner.WaitForJSTestsSetup()
        runner.SendFreeze()
        runner.SendFocus()
        self.assertTrue(runner.JSTestsSucceeded())