log.debug("Non-root referral is not final " + dfsResp);
                    dr.intermediate();
                }

                if ((cur != null)) {
                    cur.append(dr);
                }
                cur = dr;
            }

            if (log.isDebugEnabled()) {
                log.debug("Got referral " + cur);
            }
            return cur;

        // Should not throw any exception.
        assertDoesNotThrow(() -> dfsImpl.cache(mockContext, "invalidpath", mockReferral));
    }

    @Test
    void testCache_ValidPath() {
        // Scenario: A valid referral is cached.
        DfsReferralDataInternal mockReferral = mock(DfsReferralDataInternal.class);
        when(mockReferral.getPathConsumed()).thenReturn(15); // e.g., "\\\\server\\share".length()

    //                                                                           =========
    /** name */
    protected String name;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta

    /** elevateWordId */
    protected String elevateWordId;

    /** labelTypeId */
    protected String labelTypeId;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta

    /** createdAt */
    protected LocalDateTime createdAt;

    /** updatedAt */
    protected LocalDateTime updatedAt;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta

    //                                                                           =========
    /** gidNumber */
    protected Long gidNumber;

    /** name */
    protected String name;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta

      <a title="Deploy & scale any full-stack web app on Render. Focus on building apps, not infra." style="display: block; position: relative;" href="https://docs.render.com/deploy-fastapi?utm_source=deploydoc&utm_medium=referral&utm_campaign=fastapi" target="_blank">
        <span class="sponsor-badge">sponsor</span>
        <img class="sponsor-image" src="/img/sponsors/render-banner.svg" />
      </a>
    </div>
    <div class="item">

    protected String docId;

    /** queryId */
    protected String queryId;

    /** url */
    protected String url;

    /** userInfoId */
    protected String userInfoId;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta

    protected Long createdTime;

    /** expiredTime */
    protected Long expiredTime;

    /** name */
    protected String name;

    /** sessionId */
    protected String sessionId;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta

    protected String crawlingInfoId;

    /** createdTime */
    protected Long createdTime;

    /** key */
    protected String key;

    /** value */
    protected String value;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta