feat: mail error sent

tests/Feature/EmailVerificationTest.php

@@ -56,6 +56,25 @@ it('sends a verification email when a user registers', function () {
     Notification::assertSentTo($user, VerifyEmail::class);
 });
 
+it('returns a temporary error when the verification email cannot be sent during registration', function () {
+    Notification::shouldReceive('send')
+        ->once()
+        ->andThrow(new RuntimeException('Mail transport unavailable'));
+
+    $this->postJson('/api/auth/register', [
+        'name' => 'Leon',
+        'email' => 'leon@example.com',
+        'password' => 'Motsdfdepasse123*',
+        'locale' => 'fr-FR',
+    ])
+        ->assertServiceUnavailable()
+        ->assertJsonPath('message', __('api.auth.verification_email_failed'));
+
+    $this->assertDatabaseMissing('users', [
+        'email' => 'leon@example.com',
+    ]);
+});
+
 it('uses the custom account verification mailable', function () {
     $user = User::factory()->unverified()->create([
         'locale' => 'fr',