bats

Produces output in the Test Anything Protocol format, ensuring seamless integration with continuous integration systems and TAP consumers as highlighted in the README.

Uses Bash functions with @test annotations, making test cases easy to write and understand for developers familiar with shell scripting.

Captures command exit status and output into variables, simplifying assertions for testing UNIX programs and command-line tools.

Includes a load command to source common Bash code across test files, promoting maintainability and reducing duplication.

Each test runs in its own process, preventing side effects and ensuring test independence, which is crucial for reliable testing.