1 files changed, 61 insertions, 0 deletions
diff --git a/tests/lib/Net/IpAddressClassifierTest.php b/tests/lib/Net/IpAddressClassifierTest.php
new file mode 100644
index 00000000000..f20e1ec1785
--- /dev/null
+++ b/tests/lib/Net/IpAddressClassifierTest.php
@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace lib\Net;
+
+use OC\Net\IpAddressClassifier;
+use Test\TestCase;
+
+class IpAddressClassifierTest extends TestCase {
+	private IpAddressClassifier $classifier;
+
+	protected function setUp(): void {
+		parent::setUp();
+
+		$this->classifier = new IpAddressClassifier();
+	}
+
+	public static function publicIpAddressData(): array {
+		return [
+			['8.8.8.8'],
+			['8.8.4.4'],
+			['2001:4860:4860::8888'],
+			['2001:4860:4860::8844'],
+		];
+	}
+
+	#[\PHPUnit\Framework\Attributes\DataProvider('publicIpAddressData')]
+	public function testPublicAddress(string $ip): void {
+		$isLocal = $this->classifier->isLocalAddress($ip);
+
+		self::assertFalse($isLocal);
+	}
+
+	public static function localIpAddressData(): array {
+		return [
+			['192.168.0.1'],
+			['fe80::200:5aee:feaa:20a2'],
+			['fe80::1fc4:15d8:78db:2319%enp4s0'], // v6 zone ID
+			['0:0:0:0:0:ffff:10.0.0.1'],
+			['0:0:0:0:0:ffff:127.0.0.0'],
+			['10.0.0.1'],
+			['::'],
+			['::1'],
+			['100.100.100.200'],
+			['192.0.0.1'],
+		];
+	}
+
+	#[\PHPUnit\Framework\Attributes\DataProvider('localIpAddressData')]
+	public function testLocalAddress(string $ip): void {
+		$isLocal = $this->classifier->isLocalAddress($ip);
+
+		self::assertTrue($isLocal);
+	}
+}