/**
  * @test
  */
 public function it_returns_true_when_top_level_folder_does_exist()
 {
     $imap = $this->getImap(false);
     /** @noinspection PhpUndefinedMethodInspection */
     $this->mailbox->shouldReceive('getMailboxName')->with(true)->andReturn('{imap.example.com:993/imap/ssl}');
     /** @noinspection PhpUndefinedMethodInspection */
     $imap->shouldReceive('getFolders')->with('{imap.example.com:993/imap/ssl}', 'FOO')->andReturn([]);
     $mailboxManager = new ImapMailboxService($imap);
     $exists = $mailboxManager->folderExists('FOO');
     $this->assertTrue($exists);
 }