public function testCreatingEmptyWordListAndInsertingRandomProperWords()
{
$wordList = new WordList();
$wordList->addWord('foo');
$wordList->addWord('foo');
$wordList->addWord('bar');
$wordList->addWord('baz');
$this->assertTrue($wordList->hasWord('foo'));
$this->assertTrue($wordList->hasWord('bar'));
$this->assertTrue($wordList->hasWord('baz'));
$this->assertFalse($wordList->hasWord('fooz'));
}
