首页 > 解决方案 > MockMvc 抛出内部异常而不是返回带有 4xx 状态码的响应

问题描述

我正在尝试使用 MockMvc 编写 JwtTokenVerifier 测试

当我尝试使用无效的 Auth 标头请求某些 API 时:它不是返回带有 4xx 状态代码的响应,而是引发内部异常(在我的情况下为 AuthException)。我应该在测试中期待这个异常还是我需要做一些事情来获得响应?

(值“”和“123”测试成功,但“承载 qewqweqweqwe”失败并出现 AuthException(io.jsonwebtoken.MalformedJwtException:JWT 字符串必须恰好包含 2 个句点字符。发现:0))

测试:

@ParameterizedTest
    @ValueSource(strings = {"", "123", "Bearer qewqweqweqwe"})
    public void throwsClientErrorOnRequestWithInvalidAuthHeader(String headerValue) throws Exception {
        String requestBody = asJsonString(new CustomPageRequest());

        mockMvc.perform(
                MockMvcRequestBuilders.post("/users/paged")
                        .header(jwtConfig.getAuthorizationHeader(), headerValue)
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(requestBody))
                .andExpect(status().is4xxClientError());
    }

JwtTokenVerifier 过滤器:

public class JwtTokenVerifier extends OncePerRequestFilter {

    //DI

    @Override
    protected void doFilterInternal(HttpServletRequest request,
                                    HttpServletResponse response,
                                    FilterChain filterChain) throws ServletException, IOException {
        String authHeader = request.getHeader(jwtConfig.getAuthorizationHeader());
        if (StringUtils.isEmpty(authHeader) || !authHeader.startsWith(jwtConfig.getTokenPrefix())) {
            logger.warn("Invalid Authorization header - '" + authHeader + "'");
            filterChain.doFilter(request, response);
            return;
        }
        try {
            Claims body = getTokenBodyFromAuthHeader(authHeader);

            String username = body.getSubject();

            AuthUser userDetails = userDetailsService.loadUserByUsername(username);
            CustomTokenBasedAuthentication authentication = new CustomTokenBasedAuthentication(userDetails);
            SecurityContextHolder.getContext().setAuthentication(authentication);
            userContext.setCurrentPrincipal(authentication);
        } catch (JwtException e) {
            logger.error("During authentication (token verification) exception occurred", e);
            throw new AuthException("auth error");
        }
        filterChain.doFilter(request, response);
    }

    ...
}

ApiExceptionHandler:

@ControllerAdvice(basePackages = {"bac9h.demoapp"})
public class ApiExceptionsHandler {

    ...

    @ResponseStatus(HttpStatus.UNAUTHORIZED)
    @ExceptionHandler(AuthException.class)
    @ResponseBody
    public String onAuthException(AuthException e) {
        return "401 error: " + e.getMessage();
    }
}

标签: javaspring-boottestingmockmvc

解决方案


看起来一切都已连接并正常工作,但是您的 JWT 解析器识别出您提供的 Bearer 令牌甚至不是 JWT 的有效格式,因此它会引发异常。

我建议以正确的格式创建 JWT,在您的应用程序上下文中没有意义,以测试您尝试验证的行为。试试jwt.io


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