java - 如何编写GET API的JUnit测试用例？

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我有一个GET API，它可以在控制器类中接受不同的参数。根据boolean参数，API应该返回不同的结果。我该如何编写相同的JUnit测试用例？

@CrossOrigin

@RequestMapping(value = "/api/brand/multi-get", method = RequestMethod.GET, consumes =
        MediaType.APPLICATION_FORM_URLENCODED_VALUE, produces =
        MediaType.APPLICATION_JSON_VALUE)

public ResponseDTO listBrands(@RequestParam(required = false) Integer start,
                              @RequestParam(required = false) Integer limit,
                              @RequestParam(required = false) Boolean show_rejected) {

    ResponseDTO responseDTO = new ResponseDTO();
    System.out.println("------------------");
    try {
        if (start == null) {
            start = 0;
        }
        if (limit == null) {
            limit = 50;
        } else if (1 <= limit && limit <= 250) {
            if (show_rejected) {
                List<Brand> brands = brandService.findAllBrands(start, limit);
                if (brands != null && !brands.isEmpty()) {
                    responseDTO.setData(brands);
                    responseDTO.setCode(ErrorCode.error_0);
                    responseDTO.setMessage("Brand list");
                    return responseDTO;
                } else {
                    responseDTO.setData(new ArrayList<>());
                    responseDTO.setCode(ErrorCode.error_0);
                    responseDTO.setMessage("Brand list");
                    return responseDTO;
                }
            } else {
                Page<Brand> brands = brandService.findAllActiveBrands(start, limit);

                if (brands != null && !brands.isEmpty()) {
                    responseDTO.setData(brands);
                    responseDTO.setCode(ErrorCode.error_0);
                    responseDTO.setMessage("Brand list");
                    return responseDTO;
                } else {
                    responseDTO.setData(new ArrayList<>());
                    responseDTO.setCode(ErrorCode.error_0);
                    responseDTO.setMessage("Brand list");
                    return responseDTO;
                }
            }
        } else {
            responseDTO.setCode(ErrorCode.error_1104);
            responseDTO.setMessage(ErrorCode.error_msg1104);
            return responseDTO;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return responseDTO;
}

最佳答案

如果您正在使用spring框架并模拟测试，则spring-test库包含MockMvc和MockMvcRequestBuilders类，可用于测试任何API。您使用GET API，可以使用
    public static MockHttpServletRequestBuilder get(String urlTemplate, Object... uriVars)中的MockMvcRequestBuilders方法

然后，您可以使用public ResultActions perform(RequestBuilder requestBuilder)中的MockMvc方法来运行该服务。