test,tools: enable running tests under workers

Enable running tests inside workers by passing `--worker`
to `tools/test.py`. A number of tests are marked as skipped,
or have been slightly altered to fit the different environment.

PR-URL: https://github.com/nodejs/node/pull/20876
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Shingo Inoue <leko.noor@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: John-David Dalton <john.david.dalton@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>

1 files changed, 5 insertions, 1 deletions

diff --git a/test/parallel/test-child-process-validate-stdio.js b/test/parallel/test-child-process-validate-stdio.js
index 4c4f137110..26e4c29767 100644
--- a/test/parallel/test-child-process-validate-stdio.js
+++ b/test/parallel/test-child-process-validate-stdio.js
@@ -30,7 +30,8 @@ common.expectsError(() => _validateStdio(stdio2, true),
                     { code: 'ERR_IPC_SYNC_FORK', type: Error }
 );
 
-{
+
+if (common.isMainThread) {
   const stdio3 = [process.stdin, process.stdout, process.stderr];
   const result = _validateStdio(stdio3, false);
   assert.deepStrictEqual(result, {
@@ -42,4 +43,7 @@ common.expectsError(() => _validateStdio(stdio2, true),
     ipc: undefined,
     ipcFd: undefined
   });
+} else {
+  common.printSkipMessage(
+    'stdio is not associated with file descriptors in Workers');
 }