diff --git a/test/parallel/test-async-wrap-pop-id-during-load.js b/test/parallel/test-async-wrap-pop-id-during-load.js
index 4cf1ef472b6037..4f39a4fdf01b34 100644
--- a/test/parallel/test-async-wrap-pop-id-during-load.js
+++ b/test/parallel/test-async-wrap-pop-id-during-load.js
@@ -7,17 +7,15 @@ if (process.argv[2] === 'async') {
     fn();
     throw new Error();
   }
-  return (async function() { await fn(); })();
+  (async function() { await fn(); })();
+  // While the above should error, just in case it doesn't the script shouldn't
+  // fork itself indefinitely so return early.
+  return;
 }
 
 const assert = require('assert');
 const { spawnSync } = require('child_process');
 
-const ret = spawnSync(
-  process.execPath,
-  ['--stack_size=50', __filename, 'async']
-);
+const ret = spawnSync(process.execPath, [__filename, 'async']);
 assert.strictEqual(ret.status, 0);
-const stderr = ret.stderr.toString('utf8', 0, 2048);
-assert.ok(!/async.*hook/i.test(stderr));
-assert.ok(stderr.includes('UnhandledPromiseRejectionWarning: Error'), stderr);
+assert.ok(!/async.*hook/i.test(ret.stderr.toString('utf8', 0, 1024)));
diff --git a/test/parallel/test-child-process-exec-encoding.js b/test/parallel/test-child-process-exec-encoding.js
index d7c059a65ab4d8..781ee51d96dcb2 100644
--- a/test/parallel/test-child-process-exec-encoding.js
+++ b/test/parallel/test-child-process-exec-encoding.js
@@ -1,17 +1,17 @@
 'use strict';
 const common = require('../common');
+const assert = require('assert');
+const cp = require('child_process');
 const stdoutData = 'foo';
 const stderrData = 'bar';
+const expectedStdout = `${stdoutData}\n`;
+const expectedStderr = `${stderrData}\n`;
 
 if (process.argv[2] === 'child') {
   // The following console calls are part of the test.
   console.log(stdoutData);
   console.error(stderrData);
 } else {
-  const assert = require('assert');
-  const cp = require('child_process');
-  const expectedStdout = `${stdoutData}\n`;
-  const expectedStderr = `${stderrData}\n`;
   function run(options, callback) {
     const cmd = `"${process.execPath}" "${__filename}" child`;