process: fix output truncated

Fixes: #61337

Author: mohd-akram

lib/internal/process/execution.js

@@ -455,7 +455,7 @@ function runScriptInContext(name, body, breakFirstLine, print, module, baseUrl,
   if (print) {
     const { log } = require('internal/console/global');
 
-    process.on('exit', () => {
+    process.once('beforeExit', () => {
       log(result);
     });
   }

test/parallel/test-cli-eval.js

@@ -115,6 +115,12 @@ child.exec(...common.escapePOSIXShell`"${process.execPath}" -p "\\-42"`, common.
   assert.strictEqual(stderr, '');
 }));
 
+// Long output should not be truncated.
+child.exec(...common.escapePOSIXShell`"${process.execPath}" -p "'1'.repeat(1e5)"`, common.mustSucceed((stdout, stderr) => {
+  assert.strictEqual(stdout, `${'1'.repeat(1e5)}\n`);
+  assert.strictEqual(stderr, '');
+}));
+
 child.exec(...common.escapePOSIXShell`"${process.execPath}" --use-strict -p process.execArgv`,
            common.mustSucceed((stdout, stderr) => {
              assert.strictEqual(

test/parallel/test-cli-print-promise.mjs

@@ -47,20 +47,6 @@ describe('--print with a promise', { concurrency: !process.env.TEST_PARALLEL },
     });
   });
 
-  it('should output something if process exits before promise settles', async () => {
-    const result = await spawnPromisified(execPath, [
-      '--print',
-      'setTimeout(process.exit, 100, 0);timers.promises.setTimeout(200)',
-    ]);
-
-    assert.deepStrictEqual(result, {
-      code: 0,
-      signal: null,
-      stderr: '',
-      stdout: 'Promise { <pending> }\n',
-    });
-  });
-
   it('should respect exit code when process exits before promise settles', async () => {
     const result = await spawnPromisified(execPath, [
       '--print',
@@ -71,7 +57,7 @@ describe('--print with a promise', { concurrency: !process.env.TEST_PARALLEL },
       code: 42,
       signal: null,
       stderr: '',
-      stdout: 'Promise { <pending> }\n',
+      stdout: '',
     });
   });