/**
  * @test
  */
 function entryを削除する()
 {
     $entry = new Entry();
     $entry->author = 'Mr. Dummy';
     $entry->title = 'Hello';
     $entry->content = 'Hello World';
     $entry->published = new DateTime();
     $emapper = new EntryMapper(self::$pdo);
     $emapper->insert($entry);
     $emapper->delete($entry);
     $entries = $emapper->findAll()->fetchAll();
     $this->assertEmpty($entries);
 }