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// Flags: --expose-internals
'use strict';
const common = require('../common');
common.skipIfInspectorDisabled();
common.skipIfWorker(); // https://github.com/nodejs/node/issues/22767
const { internalBinding } = require('internal/test/binding');
const {
trace: {
TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN: kBeforeEvent
}
} = internalBinding('constants');
const { trace } = internalBinding('trace_events');
const assert = require('assert');
const { Session } = require('inspector');
const session = new Session();
function post(message, data) {
return new Promise((resolve, reject) => {
session.post(message, data, (err, result) => {
if (err)
reject(new Error(JSON.stringify(err)));
else
resolve(result);
});
});
}
async function test() {
session.connect();
const events = [];
let tracingComplete = false;
session.on('NodeTracing.dataCollected', (n) => {
assert.ok(n && n.params && n.params.value);
events.push(...n.params.value); // append the events.
});
session.on('NodeTracing.tracingComplete', () => tracingComplete = true);
trace(kBeforeEvent, 'foo', 'test1', 0, 'test');
const traceConfig = { includedCategories: ['foo'] };
await post('NodeTracing.start', { traceConfig });
trace(kBeforeEvent, 'foo', 'test2', 0, 'test');
trace(kBeforeEvent, 'bar', 'test3', 0, 'test');
await post('NodeTracing.stop', { traceConfig });
trace(kBeforeEvent, 'foo', 'test4', 0, 'test');
session.disconnect();
assert.ok(tracingComplete);
const marks = events.filter((t) => null !== /foo/.exec(t.cat));
assert.strictEqual(marks.length, 1);
assert.strictEqual(marks[0].name, 'test2');
}
test();
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