Write reliable integration tests in plain Java with Testcontainers 2.x: JUnit Jupiter lifecycle, singleton containers, reuse, generic containers, wait strategies, networks, init scripts, Docker Compose, CI and Docker/Podman setup. Use when adding or fixing Testcontainers tests, or migrating from 1.x. Framework-neutral.
Install
npx skills add github/awesome-copilot --skill java-testcontainersnpx skills add github/awesome-copilot --skill java-testcontainers -a claude-code -gnpx skills add github/awesome-copilot --skill java-testcontainers -a codex -ggemini skills install https://github.com/github/awesome-copilot.git --path skills/java-testcontainersgh skill install github/awesome-copilot java-testcontainersgit clone --depth 1 https://github.com/github/awesome-copilot /tmp/github__awesome-copilot
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/github__awesome-copilot/skills/java-testcontainers ~/.claude/skills/java-testcontainers # Claude Code
cp -R /tmp/github__awesome-copilot/skills/java-testcontainers ~/.agents/skills/java-testcontainers # Codex, Cursor, Gemini CLI, Copilot, OpenCode