test_main_tab_scalars.py

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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

# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import mozunit

from telemetry_harness.ping_filters import MAIN_SHUTDOWN_PING

def test_main_tab_scalars(browser, helpers):

    with browser.marionette.using_context(browser.marionette.CONTEXT_CHROME):

        start_tab = browser.marionette.current_window_handle

        tab2 = browser.open_tab(focus=True)

        browser.marionette.switch_to_window(tab2)

        tab3 = browser.open_tab(focus=True)

        browser.marionette.switch_to_window(tab3)

        browser.marionette.close()

        browser.marionette.switch_to_window(tab2)

        browser.marionette.close()

        browser.marionette.switch_to_window(start_tab)

    ping = helpers.wait_for_ping(browser.restart, MAIN_SHUTDOWN_PING)

    assert "main" == ping["type"]

    assert browser.get_client_id() == ping["clientId"]

    scalars = ping["payload"]["processes"]["parent"]["scalars"]

    assert 3 == scalars["browser.engagement.max_concurrent_tab_count"]

    assert 2 == scalars["browser.engagement.tab_open_event_count"]

    assert 1 == scalars["browser.engagement.max_concurrent_window_count"]

if __name__ == "__main__":

    mozunit.main()