java - 使用 Mockito 测试 REST 删除方法

Question

我需要帮助来使用 Mockito 的正确语法来测试 Spring Rest 模板删除方法。

服务代码:

@Override
    public Boolean deleteCustomerItem(String customerNumber, String customerItemId)
            throws Exception {
        Map<String, String> uriVariables = new HashMap<>();
        uriVariables.put("itemId", customerItemId);
        try {
            ResponseEntity<Void> deleteResponseEntity = restTemplate.exchange( deleteCustomerItemUrl, HttpMethod.DELETE, HttpEntity.EMPTY,
                    Void.class, uriVariables);
            return deleteResponseEntity.getStatusCode().is2xxSuccessful();
        } catch (Exception e) {
            throw new AppCustomerException(e.getMessage());
        }
    }

单元测试代码:

@Test
    public void testDeleteCustomerItem() throws AppCustomerException {
        ResponseEntity<Void> noResponse = new ResponseEntity<Void>(HttpStatus.OK);
        when(restTemplate.exchange(anyString(), any(HttpMethod.class), any(HttpEntity.class), Void.class, anyMap()))
                .thenReturn(noResponse);
        Boolean deleteStatus = appCustomerService.deleteCustomerItem("134", "7896");
        assertEquals(Boolean.TRUE, deleteStatus);
    }

异常(exception):

Mockito 匹配器的使用无效。 5 名匹配者预计 4 名已记录。

Answer 1

您应该将 Void.class 包装在 Mockito 匹配器中:

 when(restTemplate.exchange(
      anyString(), any(HttpMethod.class), any(HttpEntity.class), 
      eq(Void.class), anyMap()))
 .thenReturn(noResponse);

它的工作方式是所有输入都被 ArgumentMatcher 包装或不包装。