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51ceaf5bc1
Use the `cwd` option for `child_process` instead of `process.chdir()` to enable the trace events tests to run on workers. Conflicts: test/parallel/test-trace-events-binding.js test/parallel/test-trace-events-category-used.js Backport-PR-URL: https://github.com/nodejs/node/pull/23882 PR-URL: https://github.com/nodejs/node/pull/23698 Refs: https://github.com/nodejs/node/pull/23674#discussion_r225335819 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
64 lines
2.2 KiB
JavaScript
64 lines
2.2 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 cp = require('child_process');
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const fs = require('fs');
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const path = require('path');
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const CODE = `
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process.binding("trace_events").emit(
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'b'.charCodeAt(0), 'custom',
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'type-value', 10, 'extra-value', 20);
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process.binding("trace_events").emit(
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'b'.charCodeAt(0), 'custom',
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'type-value', 20, 'first-value', 20, 'second-value', 30);
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process.binding("trace_events").emit(
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'b'.charCodeAt(0), 'custom',
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'type-value', 30);
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process.binding("trace_events").emit(
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'b'.charCodeAt(0), 'missing',
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'type-value', 10, 'extra-value', 20);
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`;
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const tmpdir = require('../common/tmpdir');
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tmpdir.refresh();
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const FILE_NAME = path.join(tmpdir.path, 'node_trace.1.log');
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const proc = cp.spawn(process.execPath,
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[ '--trace-event-categories', 'custom',
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'-e', CODE ],
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{ cwd: tmpdir.path });
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proc.once('exit', common.mustCall(() => {
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assert(fs.existsSync(FILE_NAME));
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fs.readFile(FILE_NAME, common.mustCall((err, data) => {
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const traces = JSON.parse(data.toString()).traceEvents
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.filter((trace) => trace.cat !== '__metadata');
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assert.strictEqual(traces.length, 3);
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assert.strictEqual(traces[0].pid, proc.pid);
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assert.strictEqual(traces[0].ph, 'b');
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assert.strictEqual(traces[0].cat, 'custom');
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assert.strictEqual(traces[0].name, 'type-value');
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assert.strictEqual(traces[0].id, '0xa');
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assert.deepStrictEqual(traces[0].args, { 'extra-value': 20 });
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assert.strictEqual(traces[1].pid, proc.pid);
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assert.strictEqual(traces[1].ph, 'b');
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assert.strictEqual(traces[1].cat, 'custom');
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assert.strictEqual(traces[1].name, 'type-value');
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assert.strictEqual(traces[1].id, '0x14');
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assert.deepStrictEqual(traces[1].args, {
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'first-value': 20,
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'second-value': 30
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});
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assert.strictEqual(traces[2].pid, proc.pid);
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assert.strictEqual(traces[2].ph, 'b');
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assert.strictEqual(traces[2].cat, 'custom');
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assert.strictEqual(traces[2].name, 'type-value');
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assert.strictEqual(traces[2].id, '0x1e');
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assert.deepStrictEqual(traces[2].args, { });
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}));
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}));
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