# Tdd > Test-Driven Development workflow for BitcoinAddressFinder — delegates to the generic Java TDD skill and adds project-specific context Use when this capability is needed. - Skill: `tomevault-io/tdd-38` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/tdd-38` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/tdd-38/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Productivity - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/tdd-38 --- # TDD — Test-Driven Development for BitcoinAddressFinder You are working on **BitcoinAddressFinder** (group `net.ladenthin`, Java 21, Maven). ## Generic Java TDD Guide Follow all conventions from the generic Java TDD skill (`.claude/skills/java-tdd-guide/SKILL.md`). That guide covers: - Red → Green → Refactor workflow - File headers (Apache 2.0 license) - Test framework stack (JUnit 4, DataProviderRunner, Hamcrest, Mockito) - Test naming, AAA structure, editor folds - Assertions (Hamcrest only), exception testing - Data providers, named constants, DRY - Logger injection (constructor over setter) - Null safety (JSpecify + NullAway) - Records, immutability, concurrency - Import style, anti-patterns, completeness checklist ## Project-Specific Supplements For BitcoinAddressFinder-specific conventions, also follow: - **`CODE_WRITING_GUIDE.md`** — BitHelper radix constants, C-prefix configuration POJOs, custom domain exceptions, graceful shutdown (Interruptable), lambda callbacks - **`TEST_WRITING_GUIDE.md`** — Marker annotations (@AwaitTimeTest, @ToStringTest, @OpenCLTest), timing/await tests, static address constants (StaticKey, P2PKH, P2SH, P2WPKH), platform assumptions, LMDB/OpenCL test patterns, producer test helpers, socket test utilities ## Package ``` net.ladenthin.bitcoinaddressfinder ``` ## Build & Test ```bash ./mvnw compile # compile (NullAway enforced) ./mvnw test # run all tests ./mvnw test -Dnet.ladenthin.bitcoinaddressfinder.disableLMDBTest=true # skip LMDB tests ``` --- > Source: [bernardladenthin/BitcoinAddressFinder](https://github.com/bernardladenthin/BitcoinAddressFinder) — distributed by [TomeVault](https://tomevault.io).