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fbdfe9399c
This commit adds a tracing channel for module loading through `import()` and `require()`. Co-Authored-By: Stephen Belanger <admin@stephenbelanger.com> PR-URL: https://github.com/nodejs/node/pull/44340 Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com> Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de>
57 lines
1.1 KiB
JavaScript
57 lines
1.1 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const dc = require('diagnostics_channel');
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const trace = dc.tracingChannel('module.require');
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const events = [];
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let lastEvent;
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function track(name) {
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return (event) => {
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// Verify every event after the first is the same object
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if (events.length) {
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assert.strictEqual(event, lastEvent);
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}
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lastEvent = event;
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events.push({ name, ...event });
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};
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}
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trace.subscribe({
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start: common.mustCall(track('start')),
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end: common.mustCall(track('end')),
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asyncStart: common.mustNotCall(track('asyncStart')),
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asyncEnd: common.mustNotCall(track('asyncEnd')),
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error: common.mustCall(track('error')),
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});
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let error;
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try {
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require('does-not-exist');
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} catch (err) {
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error = err;
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}
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// Verify order and contents of each event
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assert.deepStrictEqual(events, [
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{
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name: 'start',
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parentFilename: module.filename,
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id: 'does-not-exist',
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},
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{
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name: 'error',
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parentFilename: module.filename,
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id: 'does-not-exist',
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error,
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},
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{
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name: 'end',
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parentFilename: module.filename,
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id: 'does-not-exist',
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error,
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},
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]);
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