JpnForPhp\Tests\Helper\HelperTest::testExtractKanjiWithLengthEqualsNWhenMixed PHP Method

    public function testExtractKanjiWithLengthEqualsNWhenMixed()
    {
        $result = Helper::extractKanji($this->mixCharacters, 2);
        $this->assertEquals(array('今日', '学校'), $result);
    }