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// Flags: --no-warnings
'use strict';
const common = require('../common');
const assert = require('assert');
const cp = require('child_process');
const path = require('path');
const fs = require('fs');
const tmpdir = require('../common/tmpdir');
// This tests the emission of node.environment trace events
const names = new Set([
'Environment',
'RunAndClearNativeImmediates',
'CheckImmediate',
'RunTimers',
'BeforeExit',
'RunCleanup',
'AtExit'
]);
if (process.argv[2] === 'child') {
// This is just so that the child has something to do.
1 + 1;
// These ensure that the RunTimers, CheckImmediate, and
// RunAndClearNativeImmediates appear in the list.
setImmediate(() => { 1 + 1; });
setTimeout(() => { 1 + 1; }, 1);
} else {
tmpdir.refresh();
const proc = cp.fork(__filename,
[ 'child' ], {
cwd: tmpdir.path,
execArgv: [
'--trace-event-categories',
'node.environment'
]
});
proc.once('exit', common.mustCall(async () => {
const file = path.join(tmpdir.path, 'node_trace.1.log');
const checkSet = new Set();
assert(fs.existsSync(file));
const data = await fs.promises.readFile(file);
JSON.parse(data.toString()).traceEvents
.filter((trace) => trace.cat !== '__metadata')
.forEach((trace) => {
assert.strictEqual(trace.pid, proc.pid);
assert(names.has(trace.name));
checkSet.add(trace.name);
});
assert.deepStrictEqual(names, checkSet);
}));
}
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