42 lines
1.2 KiB
JavaScript
42 lines
1.2 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 spawn = require('child_process').spawn;
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const stream = require('stream');
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const fs = require('fs');
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const path = require('path');
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// require('internal/fs/utils').SyncWriteStream is used as a stdio
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// implementation when stdout/stderr point to files.
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if (process.argv[2] === 'child') {
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// Note: Calling console.log() is part of this test as it exercises the
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// SyncWriteStream#_write() code path.
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console.log(JSON.stringify([process.stdout, process.stderr].map((stdio) => ({
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instance: stdio instanceof stream.Writable,
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readable: stdio.readable,
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writable: stdio.writable,
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}))));
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return;
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}
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const tmpdir = require('../common/tmpdir');
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tmpdir.refresh();
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const filename = path.join(tmpdir.path, 'stdout');
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const stdoutFd = fs.openSync(filename, 'w');
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const proc = spawn(process.execPath, [__filename, 'child'], {
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stdio: ['inherit', stdoutFd, stdoutFd ]
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});
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proc.on('close', common.mustCall(() => {
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fs.closeSync(stdoutFd);
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assert.deepStrictEqual(JSON.parse(fs.readFileSync(filename, 'utf8')), [
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{ instance: true, readable: false, writable: true },
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{ instance: true, readable: false, writable: true }
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]);
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}));
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