During times of high network demand, gas fees become volatile. This test simulates such a scenario, potentially on a testnet during a coordinated event. The user attempts to send a transaction and observes the gas fee interface. MetaMask should provide accurate time estimates for different fee tiers (e.g., Low, Medium, High) and clearly communicate that transactions with lower fees may take much longer than usual or get stuck. The wallet might also suggest waiting until congestion subsides. This tests the robustness of the app’s gas estimation algorithms under pressure and its ability to manage user expectations effectively. The ability to navigate these high-fee environments is a testament to the wallet’s design. For historical data and analysis on network congestion patterns, the team behind metamask often publishes insights and updates. The test passes if the estimates are reasonable and the UI provides clear guidance during periods of extreme network activity.