Fix tests

Author: n7studios

tests/ConvertKitAPIKeyTest.php

@@ -482,7 +482,7 @@ public function testAddSubscribersToFormsWithInvalidSubscriberIDs()
 
     /**
      * Test that create_subscribers() returns a ClientException
-     * when no data is specified, as this is only supported
+     * when attempting to create subscribers, as this is only supported
      * using OAuth.
      *
      * @since   2.2.0

tests/ConvertKitAPIOAuthTest.php

@@ -438,13 +438,15 @@ public function testInvalidAPICredentials()
         );
         $result = $api->get_account();
 
+        $this->expectException(ClientException::class);
         $api = new ConvertKit_API(
             clientID: $_ENV['CONVERTKIT_OAUTH_CLIENT_ID'],
             clientSecret: 'fakeClientSecret',
             accessToken: $_ENV['CONVERTKIT_OAUTH_ACCESS_TOKEN']
         );
         $result = $api->get_account();
 
+        $this->expectException(ClientException::class);
         $api = new ConvertKit_API(
             clientID: $_ENV['CONVERTKIT_OAUTH_CLIENT_ID'],
             clientSecret: $_ENV['CONVERTKIT_OAUTH_CLIENT_SECRET'],