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unit-test-mapper-converter

giuseppe-trisciuoglio/developer-kit

This skill provides patterns for unit testing MapStruct mappers and custom converter classes. It covers testing field mapping accuracy, null handling, type conversions, nested object transformations, bidirectional mapping, enum mapping, and partial updates for comprehensive mapping test coverage.

Installs289
Install command
npx skills add https://github.com/giuseppe-trisciuoglio/developer-kit --skill unit-test-mapper-converter
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About this skill
This skill provides patterns for unit testing MapStruct mappers and custom converter classes. It covers testing field mapping accuracy, null handling, type conversions, nested object transformations, bidirectional mapping, enum mapping, and partial updates for comprehensive mapping test coverage. Use this skill when: Null pointer exceptions during mapping : Check nullValuePropertyMappingStrategy and nullValueCheckStrategy in @Mapper . Enum mapping not working : Verify @ValueMapping annotations correctly map source to target values. Nested mapping produces null : Ensure nested mapper interfaces are also mapped in parent mapper. - Testing MapStruct mapper implementations - Testing custom entity-to-DTO converters - Testing nested object mapping - Verifying null handling in mappers - Testing type conversions and transformations - Want comprehensive mapping test coverage before integration tests - Use Mappers.getMapper() : Get mapper instances for non-Spring standalone tests - Test bidirectional mapping : Verify entity→DTO and DTO→entity transformations are symmetric - Test null handling : Verify null inputs produce null outputs or appropriate defaults - Test nested objects : Verify nested objects are mapped correctly and independently - Use recursive comparison : For complex nested structures, use assertThat().usingRecursiveComparison() - Test custom mappings : Verify @Mapping...

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FAQ
What does unit-test-mapper-converter do?

This skill provides patterns for unit testing MapStruct mappers and custom converter classes. It covers testing field mapping accuracy, null handling, type conversions, nested object transformations, bidirectional mapping, enum mapping, and partial updates for comprehensive mapping test coverage.

Is unit-test-mapper-converter good?

unit-test-mapper-converter does not have approved reviews yet, so SkillJury cannot publish a community verdict.

What agent does unit-test-mapper-converter work with?

unit-test-mapper-converter currently lists compatibility with codex, gemini-cli, opencode, cursor, github-copilot, claude-code.

What are alternatives to unit-test-mapper-converter?

Skills in the same category include telegram-bot-builder, flutter-app-size, sharp-edges, iterative-retrieval.

How do I install unit-test-mapper-converter?

npx skills add https://github.com/giuseppe-trisciuoglio/developer-kit --skill unit-test-mapper-converter

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