Tweak test name and add posts mention equivalent test

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

@@ -126,6 +126,37 @@ class PostMentionsTest extends TestCase
         $this->assertNotNull(CommentPost::find($response['data']['id'])->mentionsPosts->find(4));
     }
 
+    /**
+     * @test
+     */
+    public function mentioning_a_valid_post_with_new_format_with_smart_quotes_works_and_falls_back_to_normal_quotes()
+    {
+        $response = $this->send(
+            $this->request('POST', '/api/posts', [
+                'authenticatedAs' => 1,
+                'json' => [
+                    'data' => [
+                        'attributes' => [
+                            'content' => '@“POTATO$”#p4',
+                        ],
+                        'relationships' => [
+                            'discussion' => ['data' => ['id' => 2]],
+                        ],
+                    ],
+                ],
+            ])
+        );
+
+        $this->assertEquals(201, $response->getStatusCode());
+
+        $response = json_decode($response->getBody(), true);
+
+        $this->assertStringContainsString('POTATO$', $response['data']['attributes']['contentHtml']);
+        $this->assertEquals('@"POTATO$"#p4', $response['data']['attributes']['content']);
+        $this->assertStringContainsString('PostMention', $response['data']['attributes']['contentHtml']);
+        $this->assertNotNull(CommentPost::find($response['data']['id'])->mentionsPosts->find(4));
+    }
+
     /**
      * @test
      */

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

@@ -159,7 +159,7 @@ class UserMentionsTest extends TestCase
     /**
      * @test
      */
-    public function mentioning_a_valid_user_with_new_format_with_smart_quotes_works()
+    public function mentioning_a_valid_user_with_new_format_with_smart_quotes_works_and_falls_back_to_normal_quotes()
     {
         $response = $this->send(
             $this->request('POST', '/api/posts', [