edt-mcp-build-test

name	edt-mcp-build-test
description	How to build the EDT-MCP Eclipse plugin (Tycho/Maven) and run its unit and e2e tests, plus the test conventions for this repo. Use when building the plugin, running or writing tests, or verifying a change before committing.

EDT-MCP — build and tests

Layout

• Maven/Tycho reactor: mcp/ (bom, bundles, features, repositories, targets, tests).
• Unit tests: mcp/tests/com.ditrix.edt.mcp.server.tests/src (JUnit4, a plug-in fragment).
• E2E: tests/e2e/run_all.py + tools/test_<tool>.py (Python; runs the MCP server against TestConfiguration/).

Build

A Tycho build from mcp/ (Maven, JDK 17). The artifact is a p2 update-site in repositories/com.ditrix.edt.mcp.server.repository/target.

A local build is available — use it to validate Java edits (don't claim "verified by review/grep only"). The canonical script is source/compile.sh (it reproduces the CI flow mvn clean verify -T 1C from .github/workflows/build.yml):

# from the repo root: compile + unit tests
bash source/compile.sh
# compile only (no Surefire) — faster
bash source/compile.sh --skip-tests

• The toolchain (JDK 17 + Maven 3.9+) is often not on PATH — pass it explicitly: --java-home <JDK17 home> --maven-home <maven home> (or env JAVA_HOME/MAVEN_HOME). The exact paths are machine-specific — discover them on the spot, don't hardcode into committed files. Exact options are in README "Building from source".
• The first build is slow: Tycho pulls the EDT p2 repository (edt.1c.ru) + the Eclipse SDK (hundreds of MB). Once the caches are warm (~/.m2/repository/p2, .cache/tycho) it runs in ~1 minute. If the caches are absent and there's no network, the build legitimately can't run — say so, don't fake "green".
• Unit tests need the target platform too (Mockito/JUnit come from the p2 target, not plain Maven Central) — a green compile.sh is the real proof for Java edits; grep only catches anchor/text problems.

Unit tests — conventions

• One XxxToolTest per tool (tools/impl/), JUnit4.
• Base pattern: tool.execute(params) + a sentinel-message check (e.g. "Project not found") for argument validation. Reference: WriteModuleSourceToolTest.
• Bilingual invariant: for tools that resolve metadata/code, a case with a Russian identifier/synonym (reference WriteModuleSourceToolTest.testResolveRussianObjectName). See skill edt-mcp-bilingual.

Coverage gate

BuiltInToolTestCoverageTest (unit) fails the build if a registered tool has no XxxToolTest; the e2e coverage ratchet (tools/test_coverage_ratchet.py) fails the suite if a tools/list tool has no test_<tool>.py. Adding a tool without a test fails the build.

E2E

tests/e2e/run_all.py (+ tools/test_<tool>.py, one per tool) runs scenarios against the live server and TestConfiguration/ with git-fixture isolation. The round-trip of Cyrillic synonyms and the synonym-keyed-by-language-code check live in test_create_metadata.py / test_get_metadata_details.py. A new tool — add tools/test_<tool>.py. Full guide: edt-mcp-e2e-testing (and tests/e2e/SKILL.md).

Protocol conformance

A separate gate from the e2e business-logic suite: the official modelcontextprotocol/conformance suite validates the SERVER against the MCP wire spec (handshake, capabilities, session-id, isError, ping, SSE). Lives in tests/conformance/ (baseline.yml pins the intentional gaps; README.md explains the layer split). Run: npx @modelcontextprotocol/conformance@latest server --url http://127.0.0.1:8765/mcp --spec-version 2025-11-25 --expected-failures tests/conformance/baseline.yml.

Before committing

• Build passes
• Unit tests green; a new/changed tool has a test
• If metadata/code resolution is touched — a bilingual case exists
• (if applicable) the e2e scenario is updated
• For a finished piece of work, run the full edt-mcp-ready-to-deploy checklist (build → README → live redeploy → golden → full e2e → conformance → clean tree)