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minibashtest

Shell ★ 5 updated 10y ago

simplest unit testing framework for bash

A minimal bash testing framework that lets you write simple assert-based tests for your shell scripts to catch bugs before they hit production.

Shellsetup: easycomplexity 1/5

What minibashtest does

Minibashtest is a lightweight testing tool for bash scripts. If you write shell scripts and want to verify they work correctly before running them in production, this framework lets you write simple tests and automatically run them to catch bugs early. It's designed to be so minimal that anyone can understand how testing works, even if they've never written a test before.

How it works

The framework is straightforward: you write test functions in bash that check whether your code behaves as expected. Each test uses an assert command that validates a condition—for example, checking that a calculation returns the right number or that a file operation succeeded. You can optionally define setup and teardown functions that run before and after each test to prepare the environment or clean up afterward. Once your tests are written, you call run_test_suite to execute them all at once and see which ones pass and which ones fail.

Who would use this and why

Developers working with bash scripts—whether they're writing deployment automation, system administration tools, or build scripts—would use this to catch mistakes without manually testing every edge case. For instance, a DevOps engineer automating server configuration could write tests to verify that their bash scripts correctly validate input, handle errors, and produce expected output before rolling them out to production systems. The appeal is its simplicity: if you already know bash, you don't need to learn a complex testing framework. It's also useful as a teaching tool to introduce people to the concept of unit testing in a language they might already be familiar with.

What makes it notable

The README itself positions this as intentionally stripped-down—it's meant to show that testing doesn't have to be complicated. The creator was inspired by minunit, a famously minimal testing framework for C, and applied that philosophy to bash. If you need more advanced features like better error messages or specialized assertion types, the README points to more elaborate alternatives like bats or roundup. But for someone just starting out or working on a small bash project, this removes all the friction.

Where it fits