#!/usr/bin/env bash
# Tests for scripts/lib/common.sh
set -u
SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
source "$SCRIPT_DIR/lib/common.sh"

FAILURES=0
assert_eq() {
    local expected="$1" actual="$2" name="$3"
    if [ "$expected" = "$actual" ]; then
        echo "PASS: $name"
    else
        echo "FAIL: $name (expected '$expected', got '$actual')"
        FAILURES=$((FAILURES + 1))
    fi
}

# Test 1: log_info writes to stderr
output=$(log_info "test message" 2>&1 1>/dev/null)
case "$output" in
    *"test message"*) assert_eq "ok" "ok" "log_info goes to stderr" ;;
    *) assert_eq "ok" "fail" "log_info goes to stderr" ;;
esac

# Test 2: require_cmd succeeds for existing command
require_cmd ls >/dev/null 2>&1
assert_eq "0" "$?" "require_cmd ls returns 0"

# Test 3: require_cmd fails for missing command
require_cmd this_command_definitely_does_not_exist_12345 >/dev/null 2>&1
result=$?
[ "$result" -ne 0 ] && assert_eq "0" "0" "require_cmd missing returns non-zero" || assert_eq "0" "1" "require_cmd missing returns non-zero"

# Test 4: make_backup_dir creates dir
tmpdir=$(mktemp -d)
backup=$(make_backup_dir "$tmpdir")
[ -d "$backup" ] && assert_eq "yes" "yes" "make_backup_dir creates directory" || assert_eq "yes" "no" "make_backup_dir creates directory"
rm -rf "$tmpdir"

echo "---"
echo "Failures: $FAILURES"
exit $FAILURES