unexpected-sinon enhances the unexpected assertion library with seamless integration for sinon.js spies, stubs, and mocks. This package provides more readable and maintainable assertions for verifying behavior in unit tests. Forget cumbersome sinon syntax within your tests; instead, utilize unexpected's expressive language. Say goodbye to verbosity and welcome a more concise way to assert that your mocks were called as expected with specific arguments, leading to cleaner and more robust test suites.