[10.x] Allow testing prompts validation

src/Illuminate/Console/Concerns/ConfiguresPrompts.php

@@ -2,6 +2,7 @@
 
 namespace Illuminate\Console\Concerns;
 
+use Illuminate\Console\PromptValidationException;
 use Laravel\Prompts\ConfirmPrompt;
 use Laravel\Prompts\MultiSearchPrompt;
 use Laravel\Prompts\MultiSelectPrompt;
@@ -132,7 +133,11 @@ protected function promptUntilValid($prompt, $required, $validate)
             if ($required && ($result === '' || $result === [] || $result === false)) {
                 $this->components->error(is_string($required) ? $required : 'Required.');
 
-                continue;
+                if ($this->laravel->runningUnitTests()) {
+                    throw new PromptValidationException;
+                } else {
+                    continue;
+                }
             }
 
             if ($validate) {
@@ -141,7 +146,11 @@ protected function promptUntilValid($prompt, $required, $validate)
                 if (is_string($error) && strlen($error) > 0) {
                     $this->components->error($error);
 
-                    continue;
+                    if ($this->laravel->runningUnitTests()) {
+                        throw new PromptValidationException;
+                    } else {
+                        continue;
+                    }
                 }
             }
 

src/Illuminate/Console/PromptValidationException.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace Illuminate\Console;
+
+use RuntimeException;
+
+class PromptValidationException extends RuntimeException
+{
+}

src/Illuminate/Testing/PendingCommand.php

@@ -3,6 +3,7 @@
 namespace Illuminate\Testing;
 
 use Illuminate\Console\OutputStyle;
+use Illuminate\Console\PromptValidationException;
 use Illuminate\Contracts\Console\Kernel;
 use Illuminate\Contracts\Container\Container;
 use Illuminate\Contracts\Support\Arrayable;
@@ -300,6 +301,8 @@ public function run()
             }
 
             throw $e;
+        } catch (PromptValidationException) {
+            $exitCode = Command::FAILURE;
         }
 
         if ($this->expectedExitCode !== null) {

tests/Integration/Console/PromptsValidationTest.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Illuminate\Tests\Integration\Console;
+
+use Illuminate\Console\Command;
+use Illuminate\Contracts\Console\Kernel;
+use Orchestra\Testbench\TestCase;
+
+use function Laravel\Prompts\text;
+
+class PromptsValidationTest extends TestCase
+{
+    protected function defineEnvironment($app)
+    {
+        $app[Kernel::class]->registerCommand(new DummyPromptsValidationCommand());
+    }
+
+    public function testValidationForPrompts()
+    {
+        $this
+            ->artisan(DummyPromptsValidationCommand::class)
+            ->expectsQuestion('Test', 'bar')
+            ->expectsOutputToContain('error!');
+    }
+}
+
+class DummyPromptsValidationCommand extends Command
+{
+    protected $signature = 'prompts-validation-test';
+
+    public function handle()
+    {
+        text('Test', validate: fn ($value) => $value == 'foo' ? '' : 'error!');
+    }
+}