test: disable core dumps before running crash test

The test spawns a subprocess with the `--abort-on-uncaught-exception`
flag and expects it to terminate with a SIGABRT signal.

On systems where core dumps are enabled, that actually generates an
unnecessary core dump. Set `ulimit -c 0` before spawning the subprocess.

Fixes: #29286

PR-URL: #29478
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: David Carlier <[email protected]>

Author: bnoordhuis

test/async-hooks/test-callback-error.js

@@ -1,7 +1,7 @@
 'use strict';
 const common = require('../common');
 const assert = require('assert');
-const { spawnSync, fork } = require('child_process');
+const { spawnSync } = require('child_process');
 const async_hooks = require('async_hooks');
 const initHooks = require('./init-hooks');
 
@@ -58,39 +58,31 @@ assert.ok(!arg);
 {
   console.log('start case 3');
   console.time('end case 3');
-  const opts = {
-    execArgv: ['--abort-on-uncaught-exception'],
-    silent: true
-  };
-  const child = fork(__filename, ['test_callback_abort'], opts);
-
-  let stdout = '';
-  child.stdout.on('data', (data) => {
-    stdout += data;
-  });
-
-  let stderr = '';
-  child.stderr.on('data', (data) => {
-    stderr += data;
-  });
-
-  child.on('close', (code, signal) => {
-    if (common.isWindows) {
-      assert.strictEqual(code, 134);
-      assert.strictEqual(signal, null);
-    } else {
-      assert.strictEqual(code, null);
-      // Most posix systems will show 'SIGABRT', but alpine34 does not
-      if (signal !== 'SIGABRT') {
-        console.log(`parent received signal ${signal}\nchild's stderr:`);
-        console.log(stderr);
-        process.exit(1);
-      }
-      assert.strictEqual(signal, 'SIGABRT');
+  let program = process.execPath;
+  let args = [
+    '--abort-on-uncaught-exception', __filename, 'test_callback_abort' ];
+  const options = { encoding: 'utf8' };
+  if (!common.isWindows) {
+    program = `ulimit -c 0 && exec ${program} ${args.join(' ')}`;
+    args = [];
+    options.shell = true;
+  }
+  const child = spawnSync(program, args, options);
+  if (common.isWindows) {
+    assert.strictEqual(child.status, 134);
+    assert.strictEqual(child.signal, null);
+  } else {
+    assert.strictEqual(child.status, null);
+    // Most posix systems will show 'SIGABRT', but alpine34 does not
+    if (child.signal !== 'SIGABRT') {
+      console.log(`parent received signal ${child.signal}\nchild's stderr:`);
+      console.log(child.stderr);
+      process.exit(1);
     }
-    assert.strictEqual(stdout, '');
-    const firstLineStderr = stderr.split(/[\r\n]+/g)[0].trim();
-    assert.strictEqual(firstLineStderr, 'Error: test_callback_abort');
-  });
+    assert.strictEqual(child.signal, 'SIGABRT');
+  }
+  assert.strictEqual(child.stdout, '');
+  const firstLineStderr = child.stderr.split(/[\r\n]+/g)[0].trim();
+  assert.strictEqual(firstLineStderr, 'Error: test_callback_abort');
   console.timeEnd('end case 3');
 }