unit-test-config-properties

This skill provides patterns for unit testing @ConfigurationProperties bindings, environment-specific configurations, and property validation using JUnit 5. It covers testing property name mapping, type conversions, validation constraints, nested structures, and profile-specific configurations without full Spring context startup.

Properties not binding: Verify prefix and property names match exactly (including kebab-case to camelCase conversion).

Validation not triggered: Ensure @Validated is present and validation dependencies are on classpath.

@ConfigurationPropertiesTest を使用して @ConfigurationProperties クラスの単体テストのパターンを提供します。アプリケーション構成のバインディングと検証を検証するときに使用します。 ソース: giuseppe-trisciuoglio/developer-kit。