From 89fcc648608bdbaf078e8b1d7d78d8980fb3ddad Mon Sep 17 00:00:00 2001
From: Oliver Klee <github@oliverklee.de>
Date: Thu, 27 Feb 2025 12:50:03 +0100
Subject: [PATCH] [TASK] Add the first basic functional tests for `Parser`

Part of #757
---
 tests/Functional/ParserTest.php | 39 +++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 tests/Functional/ParserTest.php

diff --git a/tests/Functional/ParserTest.php b/tests/Functional/ParserTest.php
new file mode 100644
index 00000000..982bb3a2
--- /dev/null
+++ b/tests/Functional/ParserTest.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Sabberworm\CSS\Tests\Functional;
+
+use PHPUnit\Framework\TestCase;
+use Sabberworm\CSS\CSSList\Document;
+use Sabberworm\CSS\Parser;
+
+/**
+ * @covers \Sabberworm\CSS\Parser
+ */
+final class ParserTest extends TestCase
+{
+    /**
+     * @test
+     */
+    public function parseWithEmptyStringReturnsDocument(): void
+    {
+        $parser = new Parser('');
+
+        $result = $parser->parse();
+
+        self::assertInstanceOf(Document::class, $result);
+    }
+
+    /**
+     * @test
+     */
+    public function parseWithOneRuleSetReturnsDocument(): void
+    {
+        $parser = new Parser('.thing { }');
+
+        $result = $parser->parse();
+
+        self::assertInstanceOf(Document::class, $result);
+    }
+}