Fix mentioned filtering (#67)

extensions/mentions/tests/integration/api/ListPostsTest.php

@@ -0,0 +1,88 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace Flarum\Tests\integration\api\discussions;
+
+use Carbon\Carbon;
+use Flarum\Testing\integration\RetrievesAuthorizedUsers;
+use Flarum\Testing\integration\TestCase;
+use Illuminate\Support\Arr;
+
+class ListTest extends TestCase
+{
+    use RetrievesAuthorizedUsers;
+
+    /**
+     * @inheritDoc
+     */
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->extension('flarum-mentions');
+
+        $this->prepareDatabase([
+            'discussions' => [
+                ['id' => 1, 'title' => __CLASS__, 'created_at' => Carbon::now(), 'user_id' => 1, 'first_post_id' => 1, 'comment_count' => 1],
+            ],
+            'posts' => [
+                ['id' => 1, 'discussion_id' => 1, 'created_at' => Carbon::now(), 'user_id' => 1, 'type' => 'comment', 'content' => '<t><p>text</p></t>'],
+                ['id' => 2, 'discussion_id' => 1, 'created_at' => Carbon::now(), 'user_id' => 2, 'type' => 'comment', 'content' => '<t><p>text</p></t>'],
+                ['id' => 3, 'discussion_id' => 1, 'created_at' => Carbon::now(), 'user_id' => 2, 'type' => 'comment', 'content' => '<t><p>text</p></t>'],
+                ['id' => 4, 'discussion_id' => 1, 'created_at' => Carbon::now(), 'user_id' => 1, 'type' => 'comment', 'content' => '<t><p>text</p></t>'],
+            ],
+            'post_mentions_user' => [
+                ['post_id' => 2, 'mentions_user_id' => 1],
+                ['post_id' => 3, 'mentions_user_id' => 1],
+                ['post_id' => 4, 'mentions_user_id' => 2]
+            ],
+            'users' => [
+                $this->normalUser(),
+            ]
+        ]);
+    }
+
+    /**
+     * @test
+     */
+    public function mentioned_filter_works()
+    {
+        $response = $this->send(
+            $this->request('GET', '/api/posts')
+                ->withQueryParams([
+                    'filter' => ['mentioned' => 1],
+                ])
+        );
+
+        $data = json_decode($response->getBody()->getContents(), true)['data'];
+
+        // Order-independent comparison
+        $ids = Arr::pluck($data, 'id');
+        $this->assertEqualsCanonicalizing(['2', '3'], $ids, 'IDs do not match');
+    }
+
+    /**
+     * @test
+     */
+    public function mentioned_filter_works_negated()
+    {
+        $response = $this->send(
+            $this->request('GET', '/api/posts')
+            ->withQueryParams([
+                'filter' => ['-mentioned' => 1],
+            ])
+        );
+
+        $data = json_decode($response->getBody()->getContents(), true)['data'];
+
+        // Order-independent comparison
+        $ids = Arr::pluck($data, 'id');
+        $this->assertEqualsCanonicalizing(['4'], $ids, 'IDs do not match');
+    }
+}