Learn everything from basic unit and integration tests, all test attributes and cli commands to calculating the test coverage in your program, perfect for both beginners and experienced Rust developers. In this tutorial, you'll learn: How to write and organize unit tests in Rust Setting up integration tests properly Calculating and improving test coverage Using test attributes effectively Filtering and running specific tests Best practices for test organization Practical example with a calculator project 🔧 Topics covered: 00:00 Overview 03:01 Unit tests 21:23 Calculating test coverage 31:50 Integration tests 💻 Get the code: https://github.com/cudidotdev/cli-calculator.git This tutorial uses a real-world calculator project to demonstrate: Unit testing individual components Integration testing multiple components Test coverage reporting with cargo-tarpaulin Proper test organization and structure Mock testing and dependency injection Working with test attributes and filters