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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 telemetry_harness.ping_filters import MAIN_SHUTDOWN_PING
from telemetry_harness.testcase import TelemetryTestCase
class TestMainTabScalars(TelemetryTestCase):
"""Tests for Telemetry Scalars."""
def test_main_tab_scalars(self):
"""Test for Telemetry Scalars."""
with self.marionette.using_context(self.marionette.CONTEXT_CHROME):
# open tabs is async. We manually set the task timeout here to 0 ms
# so that it instead happens immediately after a tab opens. This
# prevents race conditions between telemetry submission and our
# test.
self.marionette.execute_script(
"""
const { BrowserUsageTelemetry } = ChromeUtils.importESModule(
);
BrowserUsageTelemetry._onTabsOpenedTask._timeoutMs = 0;
"""
)
start_tab = self.marionette.current_window_handle
tab2 = self.open_tab(focus=True)
self.marionette.switch_to_window(tab2)
tab3 = self.open_tab(focus=True)
self.marionette.switch_to_window(tab3)
self.marionette.close()
self.marionette.switch_to_window(tab2)
self.marionette.close()
self.marionette.switch_to_window(start_tab)
ping = self.wait_for_ping(self.restart_browser, MAIN_SHUTDOWN_PING)
self.assertEqual(ping["type"], "main")
self.assertEqual(ping["clientId"], self.client_id)
scalars = ping["payload"]["processes"]["parent"]["scalars"]
self.assertEqual(scalars["browser.engagement.max_concurrent_tab_count"], 3)
self.assertEqual(scalars["browser.engagement.tab_open_event_count"], 2)
self.assertEqual(scalars["browser.engagement.max_concurrent_window_count"], 1)