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import pytest

from selenium.common.exceptions import WebDriverException
from selenium.webdriver import Chrome


def test_network_conditions_emulation():
    driver = Chrome()
    driver.set_network_conditions(offline=False, latency=56, throughput=789)  # additional latency (ms)
    conditions = driver.get_network_conditions()
    assert conditions["offline"] is False
    assert conditions["latency"] == 56
    assert conditions["download_throughput"] == 789
    assert conditions["upload_throughput"] == 789
    driver.delete_network_conditions()
    with pytest.raises(WebDriverException):
        driver.get_network_conditions()
