Perfect Elixir: Test Automating Shell Scripts

Automated testing is crucial for reliable software development, yet shell scripts are frequently left untested, despite managing critical tasks like deployments, database migrations, and CI pipelines. Neglecting tests here can lead to subtle bugs and fragile workflows. Today, let's make sure all our code is testable, treating shell scripts with the same discipline we apply to application code. ℹ️ BTW test automation doesn't mean every line absolutely must be tested; rather, it's about ensuring we can test. There are cases where skipping tests can make sense — but we can never do so out of laziness. Table of Contents Shell Script Testing with Bats Bats Helper Libraries Creating a Bats Download Manager Mocking jasonkarns/bats-mock

Apr 5, 2025 - 16:59

Perfect Elixir: Test Automating Shell Scripts

Automated testing is crucial for reliable software development, yet shell scripts are frequently left untested, despite managing critical tasks like deployments, database migrations, and CI pipelines. Neglecting tests here can lead to subtle bugs and fragile workflows. Today, let's make sure all our code is testable, treating shell scripts with the same discipline we apply to application code.

ℹ️ BTW test automation doesn't mean every line absolutely must be tested; rather, it's about ensuring we can test. There are cases where skipping tests can make sense — but we can never do so out of laziness.

Table of Contents

Shell Script Testing with Bats
Bats Helper Libraries
- Creating a Bats Download Manager
Mocking
- jasonkarns/bats-mock