Requires zsh-test-runner v2.x.
To run the test suite in the current shell,
. ./index.ztr.zsh
To run a single command's tests in the current shell,
. ./index.ztr.zsh <command> # e.g. `. ./index.ztr.zsh add`
To run the test suite in a subshell,
ztr_path=$ZTR_PATH zsh ./index.ztr.zsh && abbr load
To run a single command's tests in a subshell,
ztr_path=$ZTR_PATH zsh ./index.ztr.zsh <command> && abbr load
# e.g. `ztr_path=$ZTR_PATH zsh ./index.ztr.zsh add && abbr load`