test.sh

#!/usr/bin/env bash
set -uo pipefail

if ((BASH_VERSINFO[0] < 4)) || ((BASH_VERSINFO[0] == 4 && BASH_VERSINFO[1] < 3)); then
    echo "Error: Bash version must be >= 4.3"
    if [[ "$OSTYPE" == "darwin"* ]]; then
        echo "Please install latest bash via brew: brew install bash"
    fi
    exit 1
fi

function out() {
    printf "\n\e[1;37;497;m%s\e[0;m\n" "$@"
} >&2

function err() {
    printf "\n\e[1;37;41;m%s\e[0;m\n\n" "$@"
} >&2

retval=0
cd "$(dirname "${BASH_SOURCE}")"
for file in test/*.test.sh; do
    out "Running $file"
    if grep -E "^[[:blank:]]*BACH_TESTS=.+" "$file"; then
        err "Found defination of BACH_TESTS in $file"
        retval=1
    fi
    bash "$file" || retval=1
done

if [[ "$retval" -ne 0 ]]; then
    err "Test failed!"
fi

exit "$retval"