### Question:
CmsAspspStopListController implements CmsAspspStopListApi { @Override public ResponseEntity<Boolean> unblockTpp(String tppAuthorisationNumber, String instanceId) { boolean isUnblocked = cmsAspspTppService.unblockTpp(tppAuthorisationNumber, instanceId); return new ResponseEntity<>(isUnblocked, HttpStatus.OK); }  @Override ResponseEntity<TppStopListRecord> getTppStopListRecord(String tppAuthorisationNumber, String instanceId); @Override ResponseEntity<Boolean> blockTpp(String tppAuthorisationNumber, String instanceId, Long lockPeriod); @Override ResponseEntity<Boolean> unblockTpp(String tppAuthorisationNumber, String instanceId);  }### Answer:
@Test void unblockTpp() throws Exception { when(cmsAspspTppService.unblockTpp(tppAuthorisationNumber, INSTANCE_ID)) .thenReturn(true); mockMvc.perform(delete(UNBLOCK_TPP_AUTH_NUMBER) .contentType(MediaType.APPLICATION_JSON_VALUE) .headers(httpHeaders)) .andExpect(status().is(HttpStatus.OK.value())) .andExpect(content().string(TRUE)); verify(cmsAspspTppService, times(1)).unblockTpp(tppAuthorisationNumber, INSTANCE_ID); }