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giuseppe-trisciuoglio/unit-test-mapper-converter

Bietet Muster für Unit-Tests von Mappern, Konvertern und Bean-Mappings. Validiert Entity-zu-DTO- und Modelltransformationslogik isoliert. Generiert ausführbare Mapping-Tests mit MapStruct- und benutzerdefinierten Konverter-Testabdeckungen. Verwenden Sie dies beim Schreiben von Mapping-Tests, Konvertertests, Entity-Mapping-Tests oder zur Sicherstellung korrekter Datentransformation zwischen DTOs und Domänenobjekten.

Was ist unit-test-mapper-converter?

Diese Fähigkeit unterstützt Entwickler beim Erstellen von Unit-Tests für Mapper, Konverter und Bean-Mappings, insbesondere in Java-Projekten mit MapStruct oder benutzerdefinierten Konvertern. Sie validiert die Transformationslogik zwischen Entities und DTOs sowie zwischen Domänenmodellen isoliert, ohne Abhängigkeiten von der Datenbank oder anderen Services. Die Fähigkeit generiert ausführbare Testklassen, die typische Szenarien wie Nullwerte, Randfälle und vollständige Feldabbildungen abdecken. Sie ist nützlich für Projekte, die eine strikte Trennung von Schichten erfordern und korrekte Datenflüsse zwischen Persistenz-, Geschäftslogik- und Präsentationsschichten sicherstellen müssen. Die Fähigkeit unterstützt MapStruct-Autokonfiguration sowie benutzerdefinierte Converter und bietet Vorlagen für AssertJ- oder Hamcrest-Assertionen. Sie trägt zur Verbesserung der Testabdeckung und zur Vermeidung von Laufzeitfehlern durch falsche Feldzuweisungen bei.

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Dokumentation

Was macht unit-test-mapper-converter?

Bietet Muster für Unit-Tests von Mappern, Konvertern und Bean-Mappings. Validiert Entity-zu-DTO- und Modelltransformationslogik isoliert. Generiert ausführbare Mapping-Tests mit MapStruct- und benutzerdefinierten Konverter-Testabdeckungen. Verwenden Sie dies beim Schreiben von Mapping-Tests, Konvertertests, Entity-Mapping-Tests oder zur Sicherstellung korrekter Datentransformation zwischen DTOs und Domänenobjekten.

Verwendung

Verwenden Sie diesen Skill, wenn Sie Mapper für die Datenzuordnung zwischen Schichten testen möchten. Dies umfasst:

  • MapStruct-Mapper – Automatisch generierte Mapper, die z. B. aus einer Benutzer-Entity eine Benutzer-DTO erstellen.
  • Benutzerdefinierte Konverter – Manuell geschriebene Konverter für komplexe Transformationen, für die MapStruct nicht ausreicht.
  • Bean-Mappings – Standardmäßige Bean-Kopierframeworks wie ModelMapper oder Dozer.

Hauptmerkmale

  • Isolation – Testet die Mapping-Logik ohne Datenbank- oder Service-Schicht.
  • Abdeckung – Deckt Standard- und Randfall-Szenarien ab (Nullwerte, leere Felder, zugeordnete Sammlungen).
  • Vorlagen – Enthält wiederverwendbare Testvorlagen für MapStruct und benutzerdefinierte Konverter.
  • Assertion-Muster – Vorschläge für Assertionen mit AssertJ oder Hamcrest zur Überprüfung von Feldwerten.

Beispiel (Java / MapStruct)

Angenommen, Sie haben eine UserEntity und eine UserDTO:

public class UserEntity {
    private Long id;
    private String name;
    private String email;
    // Getter und Setter
}

public class UserDTO {
    private Long id;
    private String fullName;
    private String emailAddress;
    // Getter und Setter
}

Ein Test für einen MapStruct-Mapper könnte wie folgt aussehen:

@ExtendWith(MockitoExtension.class)
class UserMapperTest {

    @InjectMocks
    private UserMapper userMapper = Mappers.getMapper(UserMapper.class);

    @Test
    void shouldMapEntityToDto() {
        UserEntity entity = new UserEntity();
        entity.setId(1L);
        entity.setName("John Doe");
        entity.setEmail("[email protected]");

        UserDTO dto = userMapper.toDto(entity);

        assertThat(dto.getId()).isEqualTo(1L);
        assertThat(dto.getFullName()).isEqualTo("John Doe");
        assertThat(dto.getEmailAddress()).isEqualTo("[email protected]");
    }

    @Test
    void shouldHandleNullEntity() {
        UserDTO dto = userMapper.toDto(null);
        assertThat(dto).isNull();
    }
}

Konfiguration

Fügen Sie die erforderlichen Abhängigkeiten zu Ihrer pom.xml oder build.gradle hinzu. Hier ein Beispiel für Maven:

<dependency>
    <groupId>org.mapstruct</groupId>
    <artifactId>mapstruct</artifactId>
    <version>1.5.5.Final</version>
</dependency>
<dependency>
    <groupId>org.mapstruct</groupId>
    <artifactId>mapstruct-processor</artifactId>
    <version>1.5.5.Final</version>
    <scope>provided</scope>
</dependency>

Unterstützte Plattformen

  • MapStruct 1.4+ und 1.5+
  • ModelMapper
  • Dozer
  • Benutzerdefinierte Konverter (manuell implementiert)

Verwandte Skills

  • giuseppe-trisciuoglio/unit-test-service – Tests für Service-Schichten
  • giuseppe-trisciuoglio/unit-test-controller – Tests für Controller/API-Endpunkte
  • giuseppe-trisciuoglio/unit-test-repository – Tests für Datenzugriffsschichten

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.

Verwandte Skills