test_runner: output errors of suites

PR-URL: #50361
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

Author: MoLow

lib/internal/test_runner/reporter/spec.js

@@ -78,11 +78,12 @@ class SpecReporter extends Transform {
 }elseif(todo!==undefined){
 title+=` # ${typeoftodo==='string'&&todo.length ? todo : 'TODO'}`;
 }
+consterror=this.#formatError(data.details?.error,indent);
 if(hasChildren){
 // If this test has had children - it was already reported, so slightly modify the output
-return`${prefix}${indent}${color}${symbols['arrow:right']}${white}${title}\n`;
+consterr=data.details?.error?.failureType==='subtestsFailed' ? '' : error;
+return`${prefix}${indent}${color}${symbols['arrow:right']}${white}${title}\n${err}`;
 }
-consterror=this.#formatError(data.details?.error,indent);
 if(skip!==undefined){
 color=gray;
 symbol=symbols['hyphen:minus'];

test/fixtures/test-runner/output/hooks_spec_reporter.js

@@ -0,0 +1,11 @@
+'use strict';
+require('../../../common');
+constfixtures=require('../../../common/fixtures');
+constspawn=require('node:child_process').spawn;
+
+constchild=spawn(process.execPath,
+['--no-warnings','--test-reporter','spec',fixtures.path('test-runner/output/hooks.js')],
+{stdio: 'pipe'});
+// eslint-disable-next-line no-control-regex
+child.stdout.on('data',(d)=>process.stdout.write(d.toString().replace(/[^\x00-\x7F]/g,'').replace(/\u001b\[\d+m/g,'')));
+child.stderr.pipe(process.stderr);