Overcoming the Complexities of Testing a Cryptocurrency Wallet

Overcoming the Complexities of Testing a Cryptocurrency Wallet
Bitcoin Builders Conference
Miami
May 2023

Transcript

1. Bitcoin Builders Conference May 2023 Overcoming the Complexities of Testing a Cryptocurrency Wallet
2. Peter Yinusa Lead QA Engineer MetaMask https://www.linkedin.com/in/PeterYinusa https://github.com/PeterYinusa
3. 1. Fundamentals of a Wallet 2. Understanding the Complexities 3. Tools and Techniques Agenda
4. Fundamentals of a Wallet
6. What is a Crypto Wallet A cryptocurrency wallet is a software program that holds your public and private keys and interacts with various blockchains enabling you to send and receive digital assets, including cryptocurrencies, stablecoins and NFTs (non-fungible tokens).
7. Hot Wallets • Connected to the internet • Web-based, desktop & mobile wallets • Free Cold Wallets • Offline • Paper & hardware wallets • Expensive Types of Wallets
8. Non-Custodial Wallets • You have complete control of your private keys • Lose your private key/seed phrase, and you lose access to your assets • No KYC or AML processes or procedures Types of Wallets Custodial Wallets • Third-party has control of private keys • Recovery mechanisms in place so you can regain access to your wallet • KYC and AML processes and procedures
9. Understanding the Complexities
11. Browser Compatibility
12. Chrome Extension Manifest V3
13. Blockchain Tooling The maturity of blockchain developer tools is still in its early stages as developers explore and experiment with different ways to build decentralised applications (dApps) on blockchain networks.
14. Browser Automation Framework
15. Browser Automation Framework
16. Release Process for Browser Extensions Review times “If your extension is pending review for more than three weeks, please contact developer support to request assistance.” Store violations Rejections and warnings.
17. Tools and Techniques
18. Communication
19. DevTools
20. Feature Flags Use feature flags as part of your build or feature release process. Feature flags help reduce risk, allowing you to do controlled testing. Build and deploy new features as part of the regular release process without having those features generally available. The development of the feature is conveniently decoupled from their exposure.
21. Keep Tools Up to Date
22. Errors: • Stack trace • Breadcrumbs • Custom context • Tracking releases • Session replay Application Performance Monitoring
23. Thank You!