Creating new validation rule to extend alpha dash with spaces

Modules/Media/Tests/AlphaDashWithSpacesTest.php

+<?php
+
+namespace Modules\Media\Tests;
+
+use Illuminate\Container\Container;
+use Illuminate\Filesystem\Filesystem;
+use Illuminate\Translation\FileLoader;
+use Illuminate\Translation\Translator;
+use Illuminate\Validation\Factory as Validator;
+use Modules\Media\Validators\AlphaDashWithSpaces;
+
+final class AlphaDashWithSpacesTest extends MediaTestCase
+{
+    public function test_it_creates_instance_of_validator()
+    {
+        $obj = new AlphaDashWithSpaces();
+        $this->assertInstanceOf(AlphaDashWithSpaces::class, $obj);
+    }
+
+    /** @test */
+    public function it_validates_rule_is_valid()
+    {
+        $this->assertTrue($this->buildValidator('My-Folder')->passes());
+        $this->assertTrue($this->buildValidator('My Folder')->passes());
+        $this->assertTrue($this->buildValidator('My Folder-isCool')->passes());
+    }
+
+    /** @test */
+    public function it_validates_invalid_rule()
+    {
+        $this->assertFalse($this->buildValidator('My-Folder @email')->passes());
+        $this->assertFalse($this->buildValidator('My-Folder @email|}{')->passes());
+    }
+
+    /** @test */
+    public function it_has_correct_error_message()
+    {
+        $message = $this->buildValidator('My-Folder @email|}{')->getMessageBag();
+
+        $this->assertEquals(
+            'The name may only contain letters, numbers, dashes and spaces.',
+            $message->get('name')[0]
+        );
+    }
+
+    public function buildValidator($folderName)
+    {
+        $app = new Container();
+        $app->singleton('app', 'Illuminate\Container\Container');
+        $translator = new Translator(new FileLoader(new Filesystem(), null), 'en');
+        $validator = (new Validator($translator))->make(['name' => $folderName], [
+            'name' => ['required', new AlphaDashWithSpaces()],
+        ]);
+
+        return $validator;
+    }
+}

Modules/Media/Validators/AlphaDashWithSpaces.php

+<?php
+
+namespace Modules\Media\Validators;
+
+use Illuminate\Contracts\Validation\Rule;
+
+class AlphaDashWithSpaces implements Rule
+{
+    /**
+     * Determine if the validation rule passes.
+     * @param  string $attribute
+     * @param  mixed $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        if (! is_string($value) && ! is_numeric($value)) {
+            return false;
+        }
+
+        return preg_match('/^[\pL\pM\pN_\s-]+$/u', $value) > 0;
+    }
+
+    /**
+     * Get the validation error message.
+     * @return string
+     */
+    public function message()
+    {
+        return 'The :attribute may only contain letters, numbers, dashes and spaces.';
+    }
+}