assertTrue(request.isHiraganaQuery("あ"));
        assertTrue(request.isHiraganaQuery("あおぞら"));
        assertTrue(request.isHiraganaQuery("けんさく"));
        assertTrue(request.isHiraganaQuery("あいうえおかきくけこさしすせそたちつてとなにぬねのはひふへほまみむめもやゆよをわん"));
        assertTrue(request.isHiraganaQuery("がぎぐげござじずぜぞだぢづでどばびぶべぼ"));
        assertTrue(request.isHiraganaQuery("ぁぃぅぇぉっゃゅょ"));