bats-core | Bash Automated Testing System | Unit Testing library

I never used BATS but by reading the doc I can say that there is a specific command for sharing common code. You may need to specify the full path though:

load: Share common code

You may want to share common code across multiple test files. Bats includes a convenient load command for sourcing a Bash source file relative to the location of the current test file. For example, if you have a Bats test in test/foo.bats, the command

load test_helper

will source the script test/test_helper.bash in your test file. This can be useful for sharing functions to set up your environment or load fixtures.

Try replacing

Pass the argument normally but skip first one that is reserved in this context:

If I understand your question correctly, you basically want to run a command and validate the output, correct?

Quoting from the BATS manual

Bats includes a run helper that invokes its arguments as a command, saves the exit status and output into special global variables

The two variables that are available inside a BATS test method to validate output are:

• $output, which contains the combined contents of the command's standard output and standard error streams

• the $lines array, for easily accessing individual lines of output

Applying this to your example would give us: