Step 6: Vitest Unit Test Assertions

6. Vitest Unit Test Assertions

Validate calculation accuracy using unit assertions.

Detailed Implementation Steps:

Create /tests/tracker.test.ts. Import your calculator modules and test fixtures. Write unit tests verifying total calculations with dummy transaction lists.

Assert that the calculator handles empty transaction arrays and negative values correctly. Run test suites by executing: npx vitest run.

Verification Checklist:

1. Run test suites using: npx vitest run. Confirm all unit assertions pass.