minecraft-testing

Automated testing for a Minecraft plugin using MockBukkit and JUnit 5 requires configuring Gradle to exercise Paper or Bukkit commands, events, and inventory changes without a real server. This validates plugin lifecycle behavior efficiently.

Testing Minecraft mod block interactions in NeoForge and Fabric is best done using GameTests to build in-world tests. This headless validation method verifies blocks, entities, structures, and world interactions directly in the game environment.

You can run Minecraft GameTests and unit tests separately in GitHub Actions CI by splitting fast JUnit 5 and MockBukkit tests from slower headless GameTests. This validates test layout and optimizes overall build execution time.

MockBukkit does support testing Paper plugin permissions and commands without a real server. It allows you to exercise Bukkit commands, events, inventory changes, and plugin lifecycle behavior entirely in a mocked environment.

Gradle test configuration for Minecraft 1.21.x projects is needed to correctly structure fixtures and framework-specific assertions. It ensures proper validation of pure Java logic and headless in-game behavior across JUnit 5 and GameTests.

JUnit 5 unit tests verify pure Java or Kotlin logic like serialization and cooldowns, whereas GameTests handle NeoForge and Fabric in-world interactions. This distinction separates non-Minecraft behavior from actual gameplay logic validation.