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Most Windows systems do not have an external `echo` program installed, so any attempts to spawn `echo` as a child process will fail with `ENOENT`. This commit forces the use of the built-in `echo` provided by `cmd.exe`. PR-URL: https://github.com/nodejs/node/pull/7049 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: João Reis <reis@janeasystems.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
34 lines
894 B
JavaScript
34 lines
894 B
JavaScript
'use strict';
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const cp = require('child_process');
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const common = require('../common');
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const assert = require('assert');
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// Windows' `echo` command is a built-in shell command and not an external
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// executable like on *nix
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const opts = { shell: common.isWindows };
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const p = cp.spawn('echo', [], opts);
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p.on('close', common.mustCall(function(code, signal) {
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assert.strictEqual(code, 0);
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assert.strictEqual(signal, null);
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spawnWithReadable();
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}));
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p.stdout.read();
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function spawnWithReadable() {
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const buffer = [];
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const p = cp.spawn('echo', ['123'], opts);
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p.on('close', common.mustCall(function(code, signal) {
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assert.strictEqual(code, 0);
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assert.strictEqual(signal, null);
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assert.strictEqual(Buffer.concat(buffer).toString().trim(), '123');
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}));
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p.stdout.on('readable', function() {
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let buf;
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while (buf = this.read())
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buffer.push(buf);
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});
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}
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