# Testing

> For testing with Light Protocol programs and clients on localnet, devnet, and mainnet validation.

- Skill: `solizardking/testing` (Agent Skill, multi-file: 5 files)
- Install (CLI): `npx skillmds@latest add solizardking/testing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/solizardking/testing/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: Solizardking (https://skillmd.com/u/solizardking)
- Updated: 2026-08-19
- Page: https://skillmd.com/skills/solizardking/testing

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# Light Protocol testing

## Workflow

1. **Clarify intent**
   - Recommend plan mode, if it's not activated
   - Use `AskUserQuestion` to resolve blind spots
   - All questions must be resolved before execution
2. **Identify references and skills**
   - Match task to [test references](#routing) below
   - Locate relevant documentation and examples
3. **Write plan file** (YAML task format)
   - Use `AskUserQuestion` for anything unclear — never guess or assume
   - Identify blockers: permissions, dependencies, unknowns
   - Plan must be complete before execution begins
4. **Execute**
   - Use `Task` tool with subagents for parallel research
   - Subagents load skills via `Skill` tool
   - Track progress with `TodoWrite`
5. **When stuck**: ask to spawn a read-only subagent with `Read`, `Glob`, `Grep`, and DeepWiki MCP access, loading `skills/ask-mcp`. Scope reads to skill references, example repos, and docs.

## Routing

| Task | Reference |
|------|-----------|
| Start local validator | [references/local.md](references/local.md) |
| Test on devnet | [references/devnet.md](references/devnet.md) |
| Test Pinocchio programs | `cargo test-sbf -p <program-name>` (no Anchor required) |

## Program addresses

These addresses are identical on devnet and mainnet.

| Program | Address |
|---------|---------|
| Light System | `SySTEM1eSU2p4BGQfQpimFEWWSC1XDFeun3Nqzz3rT7` |
| Compressed Token | `cTokenmWW8bLPjZEBAUgYy3zKxQZW6VKi7bqNFEVv3m` |
| Account Compression | `compr6CUsB5m2jS4Y3831ztGSTnDpnKJTKS95d64XVq` |
| Light Registry | `Lighton6oQpVkeewmo2mcPTQQp7kYHr4fWpAgJyEmDX` |

## Pre-initialized accounts

See [references/accounts.md](references/accounts.md) for state trees, address trees, and protocol PDAs.

See [references/addresses.md](references/addresses.md) for devnet-specific addresses and lookup tables.

## SDK references

| Package | Link |
|---------|------|
| `light-program-test` | [docs.rs](https://docs.rs/crate/light-program-test/latest) |
| `@lightprotocol/stateless.js` | [API docs](https://lightprotocol.github.io/light-protocol/stateless.js/index.html) |
| `light-client` | [docs.rs](https://docs.rs/light-client/latest/light_client/) |


## Security

This skill provides test patterns and configuration references only.

- **Declared dependencies.** Devnet testing requires `HELIUS_API_KEY` (RPC provider key). Localnet testing needs no credentials. In production, load from a secrets manager.
- **Subagent scope.** When stuck, the skill asks to spawn a read-only subagent with `Read`, `Glob`, `Grep` scoped to skill references, example repos, and docs.
- **Install source.** `npx skills add Lightprotocol/skills` from [Lightprotocol/skills](https://github.com/Lightprotocol/skills).
- **Audited protocol.** Light Protocol smart contracts are independently audited. Reports are published at [github.com/Lightprotocol/light-protocol/tree/main/audits](https://github.com/Lightprotocol/light-protocol/tree/main/audits).