foundry-test-formatting

To format wei values into readable ether strings in Foundry tests, use helpers like _formatEther and _trimTrailingZeros. These convert raw uint values into human-friendly ether representations, making logged balances and token amounts easier to read during debugging.

Foundry test logs display raw wei numbers because native console logging prints uint values directly. Formatting helpers like _formatEther and _toStringPadded convert these raw wei figures into readable ether strings, improving log clarity for balances, prices, and token amounts.

Yes, you can track balance changes and deltas across Foundry test steps using the _logLine helper. It displays before and after values alongside their calculated deltas, while _logStage prints separators to organize test steps for clearer debugging output.

Yes, this Foundry test formatting skill works with forge-std Test and vm logging. It relies on these standard components alongside console output to implement helpers like _formatEther, _logLine, and _logStage for rendering readable numeric values in unit tests.

The best way to organize Foundry test logs for stage-based debugging is using the _logStage helper. It prints stage separators across test steps, while _logLine concisely displays before and after values with deltas, creating structured and readable test output.

To remove trailing zeros from numeric strings in Solidity test outputs, use the _trimTrailingZeros helper. It improves numeric string representations by cleaning up formatted ether values, ensuring logged balances and token amounts display without unnecessary decimal zeros.