How do I verify that a specific field triggered a validation error?

The skill demonstrates how to use AssertJ to extract the property path from ConstraintViolations to ensure the correct field is failing validation.

Is it compatible with Maven and Gradle?

Yes, the skill provides the necessary dependency configurations for both Maven and Gradle build systems.

Does this skill require a full Spring Boot context to run tests?

No, this skill focuses on testing validation logic in isolation using the standard ValidatorFactory, which makes tests significantly faster than full integration tests.

Can I test custom @Constraint annotations with this skill?

Yes, the skill provides specific patterns and examples for testing both standard Jakarta annotations and your own custom-built validator implementations.

Does it support testing for different validation groups?

Yes, it includes comprehensive examples for testing conditional validation logic where constraints vary based on the validation group (e.g., Create vs. Update).

JUnit Bean Validation Tester

Name: JUnit Bean Validation Tester
Author: giuseppe-trisciuoglio

bygiuseppe-trisciuoglio

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Seguridad y Pruebas

Automates the creation and execution of unit tests for Jakarta Bean Validation constraints and custom validators using JUnit 5.

Acerca de

This skill provides a comprehensive framework for testing Jakarta Bean Validation constraints—such as @NotNull, @Email, and @Min/Max—and custom @Constraint implementations in isolation. By using the ValidatorFactory and AssertJ, developers can verify data integrity, constraint violation messages, and complex cross-field validation logic without the overhead of a full Spring context. This approach ensures faster test execution and more robust domain models by handling edge cases and validation groups effectively.

Características Principales

Parameterized validation scenarios for broad input coverage
34 GitHub stars
Testing of standard Jakarta constraints like @NotBlank, @Size, and @Email
Verification of specific constraint violation messages and property paths
Validation of custom @Constraint and ConstraintValidator implementations
Context-free testing for rapid execution without Spring Framework overhead

Casos de Uso

Verifying DTO validation logic before processing business requests in an API
Ensuring custom regex-based validators handle edge cases and null values correctly
Testing conditional validation logic using Jakarta validation groups for different lifecycle stages

Acerca de

Características Principales

Parameterized validation scenarios for broad input coverage
34 GitHub stars
Testing of standard Jakarta constraints like @NotBlank, @Size, and @Email
Verification of specific constraint violation messages and property paths
Validation of custom @Constraint and ConstraintValidator implementations
Context-free testing for rapid execution without Spring Framework overhead

Casos de Uso

Verifying DTO validation logic before processing business requests in an API
Ensuring custom regex-based validators handle edge cases and null values correctly
Testing conditional validation logic using Jakarta validation groups for different lifecycle stages