diff --git a/tests/Unit/ActivityPub/Verb/UndoFollowTest.php b/tests/Unit/ActivityPub/Verb/UndoFollowTest.php
new file mode 100644
index 000000000..3ffb3499c
--- /dev/null
+++ b/tests/Unit/ActivityPub/Verb/UndoFollowTest.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Tests\Unit\ActivityPub\Verb;
+
+use Tests\TestCase;
+use Illuminate\Foundation\Testing\WithFaker;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use App\Util\ActivityPub\Validator\UndoFollow;
+
+class UndoFollowTest extends TestCase
+{
+
+	protected $validUndo;
+	protected $invalidUndo;
+
+	public function setUp(): void
+	{
+		parent::setUp();
+
+		$this->validUndo = json_decode('{"@context":["https://www.w3.org/ns/activitystreams","https://w3id.org/security/v1",{"toot":"http://joinmastodon.org/ns#","sensitive":"as:sensitive","ostatus":"http://ostatus.org#","movedTo":"as:movedTo","manuallyApprovesFollowers":"as:manuallyApprovesFollowers","inReplyToAtomUri":"ostatus:inReplyToAtomUri","conversation":"ostatus:conversation","atomUri":"ostatus:atomUri","Hashtag":"as:Hashtag","Emoji":"toot:Emoji"}],"signature":{"type":"RsaSignature2017","signatureValue":"Kn1/UkAQGJVaXBfWLAHcnwHg8YMAUqlEaBuYLazAG+pz5hqivsyrBmPV186Xzr+B4ZLExA9+SnOoNx/GOz4hBm0kAmukNSILAsUd84tcJ2yT9zc1RKtembK4WiwOw7li0+maeDN0HaB6t+6eTqsCWmtiZpprhXD8V1GGT8yG7X24fQ9oFGn+ng7lasbcCC0988Y1eGqNe7KryxcPuQz57YkDapvtONzk8gyLTkZMV4De93MyRHq6GVjQVIgtiYabQAxrX6Q8C+4P/jQoqdWJHEe+MY5JKyNaT/hMPt2Md1ok9fZQBGHlErk22/zy8bSN19GdG09HmIysBUHRYpBLig==","creator":"http://mastodon.example.org/users/admin#main-key","created":"2018-02-17T13:29:31Z"},"type":"Undo","object":{"type":"Follow","object":"http://localtesting.pleroma.lol/users/lain","nickname":"lain","id":"http://mastodon.example.org/users/admin#follows/2","actor":"http://mastodon.example.org/users/admin"},"actor":"http://mastodon.example.org/users/admin","id":"http://mastodon.example.org/users/admin#follow/2/undo"}', true, 8);
+
+		$this->invalidUndo = [
+			'@context' => 'https://www.w3.org/ns/activitystreams',
+			'id' => 'https://example.org/og/b3e4a40b-0b26-4c5a-9079-094bd633fab7',
+			'type' => 'Undo',
+			'actor' => 'https://example.org/u/alice',
+			'object' => [
+				'id' => 'https://example.net/u/bob#follows/bb27f601-ddb9-4567-8f16-023d90605ca9',
+				'type' => 'Follow',
+			]
+		];
+	}
+
+	/** @test */
+	public function valid_undo_follow()
+	{
+		$this->assertTrue(UndoFollow::validate($this->validUndo));
+	}
+
+	/** @test */
+	public function invalid_undo_follow()
+	{
+		$this->assertFalse(UndoFollow::validate($this->invalidUndo));
+	}
+
+}
\ No newline at end of file