package main

// The holders of node-uplink whose bundles carry uplink.go (novox/hq ADR 0241). Each builds alone, so each
// has its own copy; this test, itself one of the copied files, holds them to one text wherever the siblings
// are present.

import (
	"bytes"
	"os"
	"path/filepath"
	"testing"
)

var holders = []string{"networkmanager", "systemd-networkd"}

func TestEveryUplinkHolderCarriesTheSameCopy(t *testing.T) {
	compared := 0
	for _, module := range holders {
		dir := filepath.Join("..", "..", "..", module, "cmd", "uplink-tools")
		if _, err := os.Stat(dir); err != nil {
			continue
		}
		for _, f := range []string{"uplink.go", "uplink_test.go", "main.go", "copies_test.go"} {
			mine, err := os.ReadFile(f)
			if err != nil {
				t.Fatal(err)
			}
			theirs, err := os.ReadFile(filepath.Join(dir, f))
			if err != nil || !bytes.Equal(mine, theirs) {
				t.Errorf("%s's copy of %s differs from this one: change every copy together", module, f)
			}
		}
		compared++
	}
	if compared == 0 {
		t.Log("no sibling copies beside this module")
	}
}