// Package xtest provides wire fixtures shared by binding tests.
package xtest

import (
	"encoding/hex"
	"os"
	"strings"
)

// LoadHex reads whitespace-separated hex with optional # comments.
func LoadHex(path string) ([]byte, error) {
	b, err := os.ReadFile(path)
	if err != nil {
		return nil, err
	}
	var text strings.Builder
	for line := range strings.SplitSeq(string(b), "\n") {
		line, _, _ = strings.Cut(line, "#")
		text.WriteString(strings.Join(strings.Fields(line), ""))
	}
	return hex.DecodeString(text.String())
}