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// Flags: --expose_internals
'use strict';
const common = require('../common');
const assert = require('assert');
const { spawnSync } = require('child_process');
const internalCp = require('internal/child_process');
if (!common.isMainThread)
common.skip('stdio is not associated with file descriptors in Workers');
// This test uses the deprecated `customFds` option. We expect a deprecation
// warning, but only once (per node process).
const msg = 'child_process: options.customFds option is deprecated. ' +
'Use options.stdio instead.';
common.expectWarning('DeprecationWarning', msg, 'DEP0006');
// Verify that customFds is used if stdio is not provided.
{
const customFds = [-1, process.stdout.fd, process.stderr.fd];
const oldSpawnSync = internalCp.spawnSync;
internalCp.spawnSync = common.mustCall(function(opts) {
assert.deepStrictEqual(opts.options.customFds, customFds);
assert.deepStrictEqual(opts.options.stdio, [
{ type: 'pipe', readable: true, writable: false },
{ type: 'fd', fd: process.stdout.fd },
{ type: 'fd', fd: process.stderr.fd }
]);
});
spawnSync(...common.pwdCommand, { customFds });
internalCp.spawnSync = oldSpawnSync;
}
// Verify that customFds is ignored when stdio is present.
{
const customFds = [0, 1, 2];
const oldSpawnSync = internalCp.spawnSync;
internalCp.spawnSync = common.mustCall(function(opts) {
assert.deepStrictEqual(opts.options.customFds, customFds);
assert.deepStrictEqual(opts.options.stdio, [
{ type: 'pipe', readable: true, writable: false },
{ type: 'pipe', readable: false, writable: true },
{ type: 'pipe', readable: false, writable: true }
]);
});
spawnSync(...common.pwdCommand, { customFds, stdio: 'pipe' });
internalCp.spawnSync = oldSpawnSync;
}
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