}

    // Interaction detail: capture arguments passed to handleDFSReferral
    @Test
    @DisplayName("handleDFSReferral receives the exact arguments via captor")
    void handleDfsReferralArgumentCapture() {
        when(locator.handleDFSReferral(any(), any())).thenReturn("ok");
        String req = "some/path";
        locator.handleDFSReferral(referral, req);