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giuseppe-trisciuoglio/单元测试异常处理器

提供在Spring Boot应用程序中单元测试`@ExceptionHandler`和`@ControllerAdvice`的模式。验证错误响应的格式、模拟异常、验证HTTP状态码、测试字段级验证错误,并断言自定义错误负载。适用于编写Spring异常处理器测试、REST API错误测试或模拟控制器通知。

单元测试异常处理器 是什么?

该技能专为Spring Boot开发者设计,提供一套现成的模式来单元测试`@ExceptionHandler`和`@ControllerAdvice`组件。它简化了验证错误响应格式、模拟异常场景、检查HTTP状态码以及测试字段级验证错误的过程。通过该技能,你可以断言自定义错误负载(如错误代码、时间戳和消息),确保REST API的错误处理行为符合预期。它支持在测试中模拟控制器通知,无需启动完整应用上下文,从而节省测试时间并提高代码可靠性。该技能广泛适用于JUnit和Mockito等主流测试框架,是构建健壮Spring Boot REST API错误处理逻辑的必备工具。

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单元测试异常处理器 是做什么的?

提供在Spring Boot应用程序中单元测试@ExceptionHandler和@ControllerAdvice的模式。验证错误响应的格式、模拟异常、验证HTTP状态码、测试字段级验证错误,并断言自定义错误负载。适用于编写Spring异常处理器测试、REST API错误测试或模拟控制器通知。

核心功能

  • 模拟异常:轻松创建和配置受支持的控制器的异常场景。
  • 验证HTTP状态码:断言在异常情况下返回正确的状态码(如400、404、500)。
  • 验证错误响应格式:检查JSON/XML错误响应的结构,包括字段、类型和存在性。
  • 测试字段级验证错误:模拟MethodArgumentNotValidException并验证每个字段的错误消息。
  • 断言自定义错误负载:验证自定义@ExceptionHandler方法返回的错误代码、时间戳、跟踪ID或其他特定字段。
  • 模拟控制器通知:在测试中直接模拟@ControllerAdvice,无需启动完整Spring上下文。

支持平台

  • Spring Boot 2.x 和 3.x
  • Java 17+
  • JUnit 5
  • Mockito

如何使用

以下是一个简单的测试示例,展示如何使用此技能测试自定义@ExceptionHandler:

import static org.mockito.Mockito.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;

@WebMvcTest(MyController.class)
class MyControllerExceptionHandlerTest {

    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private MyService myService;

    @Test
    void whenResourceNotFound_thenReturns404() throws Exception {
        when(myService.getResource(1L)).thenThrow(new ResourceNotFoundException("Resource not found"));

        mockMvc.perform(get("/api/resources/1"))
               .andExpect(status().isNotFound())
               .andExpect(jsonPath("$.error").value("Not Found"))
               .andExpect(jsonPath("$.message").value("Resource not found"));
    }
}

测试字段级验证错误

@Test
void whenValidationFails_thenReturns400() throws Exception {
    String invalidBody = "{\"name\":\"\"}";

    mockMvc.perform(post("/api/resources")
               .contentType(MediaType.APPLICATION_JSON)
               .content(invalidBody))
           .andExpect(status().isBadRequest())
           .andExpect(jsonPath("$.fieldErrors").isArray())
           .andExpect(jsonPath("$.fieldErrors[0].field").value("name"))
           .andExpect(jsonPath("$.fieldErrors[0].message").value("must not be blank"));
}

其他资源


本技能由社区贡献,专为提高Spring Boot异常处理器测试的效率和可靠性而设计。

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

giuseppe-trisciuoglio/aws-lambda-java-integration

Provides AWS Lambda integration patterns for Java with cold start optimization. Use when deploying Java functions to AWS Lambda, choosing between Micronaut and Raw Java approaches, optimizing cold starts below 1 second, configuring API Gateway or ALB integration, or implementing serverless Java applications. Triggers include "create lambda java", "deploy java lambda", "micronaut lambda aws", "java lambda cold start", "aws lambda java performance", "java serverless framework".

giuseppe-trisciuoglio/aws-lambda-php-integration

Provides AWS Lambda integration patterns for PHP with Symfony using the Bref framework. Creates Lambda handler classes, configures runtime layers, sets up SQS/SNS event triggers, implements warm-up strategies, and optimizes cold starts. Use when deploying PHP/Symfony applications to AWS Lambda, configuring API Gateway integration, implementing serverless PHP applications, or optimizing Lambda performance with Bref. Triggers include "create lambda php", "deploy symfony lambda", "bref lambda aws", "php lambda cold start", "aws lambda php performance", "symfony serverless", "php serverless framework".

giuseppe-trisciuoglio/aws-lambda-python-integration

Provides AWS Lambda integration patterns for Python with cold start optimization. Use when deploying Python functions to AWS Lambda, choosing between AWS Chalice and raw Python approaches, optimizing cold starts, configuring API Gateway or ALB integration, or implementing serverless Python applications. Triggers include "create lambda python", "deploy python lambda", "chalice lambda aws", "python lambda cold start", "aws lambda python performance", "python serverless framework".

giuseppe-trisciuoglio/aws-lambda-typescript-integration

Provides AWS Lambda integration patterns for TypeScript with cold start optimization. Use when creating or deploying TypeScript Lambda functions, choosing between NestJS framework and raw TypeScript approaches, optimizing cold starts, configuring API Gateway or ALB integration, or implementing serverless TypeScript applications. Triggers include "create lambda typescript", "deploy typescript lambda", "nestjs lambda aws", "raw typescript lambda", "aws lambda typescript performance".

giuseppe-trisciuoglio/aws-rds-spring-boot-integration

Provides patterns to configure AWS RDS (Aurora, MySQL, PostgreSQL) with Spring Boot applications. Configures HikariCP connection pools, implements read/write splitting, sets up IAM database authentication, enables SSL connections, and integrates with AWS Secrets Manager. Use when setting up RDS connections in Spring Boot, configuring connection pooling, or managing database credentials securely.

giuseppe-trisciuoglio/aws-sdk-java-v2-bedrock

Provides Amazon Bedrock patterns using AWS SDK for Java 2.x. Invokes foundation models (Claude, Llama, Titan), generates text and images, creates embeddings for RAG, streams real-time responses, and configures Spring Boot integration. Use when asking about Bedrock integration, Java SDK for AI models, AWS generative AI, Claude/Llama invocation, embeddings for RAG, or Spring Boot AI setup.

giuseppe-trisciuoglio/aws-sdk-java-v2-core

Provides AWS SDK for Java 2.x client configuration, credential resolution, HTTP client tuning, timeout, retry, and testing patterns. Use when creating or hardening AWS service clients, wiring Spring Boot beans, debugging auth or region issues, or choosing sync vs async SDK usage.

giuseppe-trisciuoglio/aws-sdk-java-v2-dynamodb

Provides Amazon DynamoDB patterns using AWS SDK for Java 2.x. Use when creating, querying, scanning, or performing CRUD operations on DynamoDB tables, working with indexes, batch operations, transactions, or integrating with Spring Boot applications.

giuseppe-trisciuoglio/aws-sdk-java-v2-kms

Provides AWS Key Management Service (KMS) patterns using AWS SDK for Java 2.x. Use when creating/managing encryption keys, encrypting/decrypting data, generating data keys, digital signing, key rotation, or integrating encryption into Spring Boot applications.

giuseppe-trisciuoglio/aws-sdk-java-v2-lambda

Provides AWS Lambda patterns using AWS SDK for Java 2.x. Use when invoking Lambda functions, creating/updating functions, managing function configurations, working with Lambda layers, or integrating Lambda with Spring Boot applications.

giuseppe-trisciuoglio/aws-sdk-java-v2-messaging

Provides AWS messaging patterns using AWS SDK for Java 2.x for SQS queues and SNS topics. Handles sending/receiving messages, FIFO queues, DLQ, subscriptions, and pub/sub patterns. Use when implementing messaging with SQS or SNS.

giuseppe-trisciuoglio/aws-sdk-java-v2-rds

Provides AWS RDS (Relational Database Service) management patterns using AWS SDK for Java 2.x. Use when creating, modifying, monitoring, or managing Amazon RDS database instances, snapshots, parameter groups, and configurations.

giuseppe-trisciuoglio/aws-sdk-java-v2-s3

Provides Amazon S3 patterns and examples using AWS SDK for Java 2.x. Use when working with S3 buckets, uploading/downloading objects, multipart uploads, presigned URLs, S3 Transfer Manager, object operations, or S3-specific configurations.

giuseppe-trisciuoglio/aws-sdk-java-v2-secrets-manager

Provides AWS Secrets Manager patterns for AWS SDK for Java 2.x, including secret retrieval, caching, rotation-aware access, and Spring Boot integration. Use when storing or reading secrets in Java services, replacing hardcoded credentials, or wiring secret-backed configuration into applications.

giuseppe-trisciuoglio/better-auth

Provides Better Auth integration patterns for NestJS backend and Next.js frontend with Drizzle ORM and PostgreSQL. Use when setting up Better Auth with NestJS backend, integrating Next.js App Router frontend, configuring Drizzle ORM schema, implementing social login (GitHub, Google), adding plugins (2FA, Organization, SSO, Magic Link, Passkey), implementing email/password authentication with session management, or creating protected routes and middleware.

giuseppe-trisciuoglio/chunking-strategy

Provides chunking strategies for RAG systems. Generates chunk size recommendations (256-1024 tokens), overlap percentages (10-20%), and semantic boundary detection methods. Validates semantic coherence and evaluates retrieval precision/recall metrics. Use when building retrieval-augmented generation systems, vector databases, or processing large documents.

giuseppe-trisciuoglio/clean-architecture

Provides implementation patterns for Clean Architecture, Hexagonal Architecture (Ports & Adapters), and Domain-Driven Design in Java 21+ Spring Boot 3.5+ applications. Use when structuring layered architectures, separating domain logic from frameworks, implementing ports and adapters, creating entities/value objects/aggregates, or refactoring monolithic codebases for testability and maintainability.

giuseppe-trisciuoglio/docs-updater

Provides automated documentation updates by analyzing git changes between the current branch and the last release tag. Performs git diff analysis to identify modifications, then updates README.md, CHANGELOG.md following Keep a Changelog standard, and discovers documentation folders for contextual updates. Use when preparing a release, maintaining documentation sync, or before creating a pull request. Triggers on "update docs", "update changelog", "sync documentation", "update readme", "prepare release documentation".

giuseppe-trisciuoglio/drawio-logical-diagrams

Creates professional logical flow diagrams and logical system architecture diagrams using draw.io XML format (.drawio files). Use when creating: (1) logical flow diagrams showing data/process flow between system components, (2) logical architecture diagrams representing system structure without cloud provider specifics, (3) BPMN process diagrams, (4) UML diagrams (class, sequence, activity), (5) data flow diagrams (DFD), (6) decision flowcharts, or (7) system interaction diagrams. This skill focuses on generic/abstract representations, not AWS/Azure-specific architectures (use aws-drawio-architecture-diagrams for cloud diagrams).

giuseppe-trisciuoglio/drizzle-orm-patterns

Provides comprehensive Drizzle ORM patterns for schema definition, CRUD operations, relations, queries, transactions, and migrations. Proactively use for any Drizzle ORM development including defining database schemas, writing type-safe queries, implementing relations, managing transactions, and setting up migrations with Drizzle Kit. Supports PostgreSQL, MySQL, SQLite, MSSQL, and CockroachDB.

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