E2E Testing — Web3 & Blockchain

Playwright patterns for testing applications that integrate with browser wallets and blockchain transactions.

When to Activate

• Writing E2E tests for wallet connection flows (MetaMask, Phantom, WalletConnect)
• Testing DeFi features that trigger on-chain transactions
• Mocking browser wallet providers (window.ethereum, window.solana) in tests
• Handling async blockchain confirmation waits in test flows

For general Playwright E2E patterns (page objects, CI artifacts, visual testing) — see skill e2e-testing.

Wallet / Web3 Testing

Mock Wallet Provider (Ethereum/MetaMask)