Files
MCMapper-Mod/common/README.md
T
octoturge 53cba762b4 Add standalone test coverage for common/'s MiniJson
Requested after MCMapper-Backend's Phase 2: development follows TDD
(test-first) from here on — this retrofits the piece already built
(MiniJson, the hand-rolled JSON codec) before that request landed.

No JUnit/Gradle involved, matching common/'s "must compile standalone
under plain javac" constraint (see README.md) — a hand-rolled assertion
runner in src/test/java, compiled and run via the new run-tests.sh.
Covers write escaping, nested object/array encoding, parsing (including
the exact columns-message shape DefaultBackendConnection actually
builds), and a write-then-parse round-trip.

Deliberately not wired into either leaf's build.gradle sourceSets (which
only pull in src/main/java) — verified both forge-1_12_2 and forge-1_7_10
still compile with src/test/ present, confirming test code doesn't leak
into the shipped mod jar.
2026-08-08 16:39:56 +02:00

1.9 KiB

common

Loader-agnostic Java: protocol types, config model, and the interfaces each leaf module (forge-1_7_10, forge-1_12_2, neoforge-26_1) implements against its own Minecraft/Forge API generation.

This module is not consumed as a compiled binary dependency. The legacy leaves (1.7.10, 1.12.2) target Java 8; neoforge-26_1 targets a modern JDK. To avoid cross-version binary compatibility issues, each leaf module adds common/src/main/java directly to its own source set (see the sourceSets.main.java.srcDirs line in each leaf's build.gradle) and compiles it itself, once per leaf, against its own toolchain. Keep this module free of any Minecraft/Forge/NeoForge API usage — it must compile standalone under plain javac.

Layout

  • protocol/ — wire types shared with the backend (delta events, chat/waypoint payloads, link request/response). Mirrors the WS protocol described in the root plan.
  • config/ — the common config model (backend URL, server token, tracking/reconciliation intervals) each leaf loads via its own loader-specific config system.
  • json/, ws/ — the hand-rolled JSON codec and RFC 6455 WS client DefaultBackendConnection is built on (no third-party dependency, for the same "no shading through legacy ForgeGradle" reason this module stays dependency-free generally).

Testing

./run-tests.sh

Compiles src/main/java + src/test/java and runs every *Test.java class's main(). No JUnit/Gradle — same "must compile standalone under plain javac" constraint as the module itself, and test code never ships in the mod jar so it doesn't need to match either leaf's JDK 8 target. Anything needing a live Forge/Minecraft world (event hook wiring, world reads) isn't unit-testable this way — those stay integration-tested against a real running MCMapper-Backend instance instead (see the Phase 1/2 commit messages for how that's been done so far).