first commit

tests/Kernel/FlashServiceConsumeTest.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Kernel;
+
+use Netig\Netslim\Kernel\Http\Infrastructure\Flash\FlashService;
+use PHPUnit\Framework\TestCase;
+
+#[\PHPUnit\Framework\Attributes\AllowMockObjectsWithoutExpectations]
+
+final class FlashServiceConsumeTest extends TestCase
+{
+    protected function setUp(): void
+    {
+        $_SESSION = [];
+    }
+
+    public function testGetReturnsNullWhenMissingAndConsumesWhenPresent(): void
+    {
+        $flash = new FlashService();
+
+        self::assertNull($flash->get('missing'));
+
+        $flash->set('notice', 'Bonjour');
+        self::assertSame('Bonjour', $flash->get('notice'));
+        self::assertNull($flash->get('notice'));
+    }
+}