Simplifies testing of Jakarta Bean Validation constraints and custom validators using JUnit 5 and AssertJ.
This skill provides a comprehensive set of patterns and boilerplate for unit testing Jakarta Bean Validation annotations like @NotNull, @Email, and @Size, as well as complex custom and cross-field validators. By utilizing a standalone Validator instance without the overhead of a Spring context, it enables high-performance, isolated tests for data integrity rules and domain model constraints. It covers common scenarios including error message verification, validation groups, and parameterized testing for edge cases, ensuring robust data validation logic in Java applications.
主な機能
011 GitHub stars
02Fast execution using standalone Validator initialization
03Integration with AssertJ for readable violation assertions
04Support for validation groups and conditional logic
05Comprehensive guide for custom @Constraint and multi-field validator testing
06Detailed patterns for testing standard Jakarta constraints
ユースケース
01Ensuring correct error messages are triggered by specific validation violations
02Verifying domain model integrity without loading a full application context
03Testing custom business rules implemented via Jakarta ConstraintValidators
