#!/usr/bin/env bash

# ---
# IMPORTANT: Use the following statement at the TOP OF EVERY TEST SCRIPT
#            to ensure that this package's 'bin/' subfolder is added to the path so that
#            this package's CLIs can be invoked by their mere filename in the rest
#            of the script.
# ---
PATH=${PWD%%/test*}/bin:$PATH

# Helper function for error reporting.
die() { (( $# > 0 )) && echo "ERROR: $*" >&2; exit 1; }

dieUnexpected() {
  die "\`${cmd[@]}\` failed unexpectedly."
}


# ----

cmd=( awf '-h' )
output=$( "${cmd[@]}" ) || dieUnexpected
expectedOutputSubstring='awf help'
grep -Fq "$expectedOutputSubstring" <<<"$output" || die "Expected '$expectedOutputSubstring' in output from \`${cmd[@]}\`; not found in output: $output"

cmd=( awf help )
output=$( "${cmd[@]}" ) || dieUnexpected
expectedOutputSubstring='awf help'
grep -Fq "$expectedOutputSubstring" <<<"$output" || die "Expected '$expectedOutputSubstring' in output from \`${cmd[@]}\`; not found in output: $output"

cmd=( awf help all )
output=$( "${cmd[@]}" ) || dieUnexpected
expectedOutputSubstring='awf help'
grep -Fq "$expectedOutputSubstring" <<<"$output" || die "Expected '$expectedOutputSubstring' in output from \`${cmd[@]}\`; not found in output: $output"
descrCount=$(grep -F 'DESCRIPTION' <<<"$output" | wc -l)
(( descrCount > 1 )) || die "Expected multiple 'DESCRIPTION' headers; not found in output: $output"

cmd=( awf help info )
output=$( "${cmd[@]}" ) || dieUnexpected
expectedOutputSubstring='awf info '
grep -Fq "$expectedOutputSubstring" <<<"$output" || die "Expected '$expectedOutputSubstring' in output from \`${cmd[@]}\`; not found in output: $output"

cmd=( awf help no-such-subcommand )
output=$( "${cmd[@]}" 2>/dev/null ) && die "\`${cmd[@]}\` succeeded unexpectedly."

exit 0