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# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D36052 --HG-- extra : source : b5be5b4f4b47c256e28a29f665dc754f6407ee7f
50 lines
1.7 KiB
JavaScript
50 lines
1.7 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/
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*/
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ChromeUtils.defineModuleGetter(
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this,
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"TelemetryTestUtils",
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"resource://testing-common/TelemetryTestUtils.jsm"
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);
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add_task(async function test_bug1555798() {
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/*
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The idea behind this bug is that the registration of dynamic scalars causes
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the position of the scalarinfo for telemetry.dynamic_events_count to move
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which causes things to asplode.
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So to test this we'll be registering two dynamic events, recording to one of
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the events (to ensure the Scalar for event1 is allocated from the unmoved
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DynamicScalarInfo&), registering several dynamic scalars to cause the
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nsTArray of DynamicScalarInfo to realloc, and then recording to the second
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event to make the Event Summary Scalar for event2 try to allocate from where
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the DynamicScalarInfo used to be.
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*/
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Telemetry.clearEvents();
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const DYNAMIC_CATEGORY = "telemetry.test.dynamic.event";
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Telemetry.registerEvents(DYNAMIC_CATEGORY, {
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an_event: {
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methods: ["a_method"],
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objects: ["an_object", "another_object"],
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record_on_release: true,
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expired: false,
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},
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});
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Telemetry.recordEvent(DYNAMIC_CATEGORY, "a_method", "an_object");
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for (let i = 0; i < 100; ++i) {
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Telemetry.registerScalars("telemetry.test.dynamic" + i, {
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scalar_name: {
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kind: Ci.nsITelemetry.SCALAR_TYPE_COUNT,
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record_on_release: true,
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},
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});
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Telemetry.scalarAdd("telemetry.test.dynamic" + i + ".scalar_name", 1);
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}
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Telemetry.recordEvent(DYNAMIC_CATEGORY, "a_method", "another_object");
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TelemetryTestUtils.assertNumberOfEvents(2, {}, { process: "dynamic" });
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});
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