Sastrawi\Dictionary\ArrayDictionary::contains PHP Method

    public function contains($word)
    {
        return isset($this->words[$word]);
    }

 public function testConstructorPreserveWords()
 {
     $words = array('word1', 'word2');
     $dictionary = new ArrayDictionary($words);
     $this->assertEquals(2, $dictionary->count());
     $this->assertTrue($dictionary->contains('word1'));
     $this->assertTrue($dictionary->contains('word2'));
 }