midnight-cq:wallet-testing

What problem does it solve?

Developers need reliable, repeatable tests for custom Wallet SDK implementations and WalletBuilder compositions that interact with Effect-based services, Either-returning capabilities, and RxJS observable state; this Skill provides patterns and guardrails to avoid common pitfalls and flaky tests.

Core Features & Use Cases

• Effect/Either unwrapping patterns for asserting success and failure paths in async and pure capabilities.
• Observable state testing with first-value and multi-emission strategies to avoid races and memory leaks.
• WalletBuilder and test double setup including branded type fixtures, complete capability/service doubles, and Layer-based service provisioning for unit and integration tests.
• Use Case: Create Vitest suites that start a test WalletBuilder variant, mock proving/submission services, assert state transitions, and clean up subscriptions per test.

Quick Start

Ask the assistant to generate Vitest tests that unwrap Effects, assert observable emissions, and wire WalletBuilder with test doubles for your custom wallet variant.