public String generatePreview(List<TextAnswer> reviewTextAnswers) {
        if (reviewTextAnswers.isEmpty()) {
            return "";
        }
        String answer = reviewTextAnswers.get(0).getContent();
        if (answer.length() > PREVIEW_LENGTH) {
            return answer.substring(0, PREVIEW_LENGTH);
        }
        return answer;
    }
@Test
    void 답변_내용이_미리보기_최대_글자를_넘는_경우_미리보기_길이만큼_잘라서_반환한다() {
        // given
        ReviewPreviewGenerator reviewPreviewGenerator = new ReviewPreviewGenerator();
        String answer = "*".repeat(151);
        TextAnswer textAnswer = new TextAnswer(1, answer);

        // when
        String actual = reviewPreviewGenerator.generatePreview(List.of(textAnswer));

        // then
        assertThat(actual).hasSize(150);
    }