public function testFindingLongestWord() { $wordList = new WordList(); $wordList->addWord('a'); $wordList->addWord('bb'); $wordList->addWord('c'); $wordList->addWord('ddd'); $wordList->addWord('eeee'); $wordList->addWord('f'); $this->assertsame('eeee', $wordList->getLongestWord()); }