package main

// content_rule.go is messenger's own content rule (modules/messenger/cmd/messenger/content.go, novox/hq ADR
// 0253 §3), copied here verbatim — byte for byte, only the file renamed, since Go allows nothing else to
// differ (novox/hq issue 868, review round 1). mesh-mail carries it at run time, not only in its tests: the
// ask it builds is checked against the real rule before it is published (send.go), so a subject or a first
// line the masking does not catch (an IP, a hardware address, a path-shaped reference, a hex hash, …) falls
// back to a safe explanation rather than refusing the whole ask. Messenger's content rule stays messenger's:
// this is a pinned copy, never a dependency on it, the way modules/networkmanager/cmd/uplink-tools/copies_test.go
// pins its copy of uplink.go.

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

func TestContentRuleCopyMatchesMessengers(t *testing.T) {
	src := filepath.Join("..", "..", "..", "messenger", "cmd", "messenger", "content.go")
	theirs, err := os.ReadFile(src)
	if err != nil {
		t.Skipf("messenger's content.go is not beside this module (%v); nothing to pin against", err)
	}
	mine, err := os.ReadFile("content_rule.go")
	if err != nil {
		t.Fatal(err)
	}
	if !bytes.Equal(mine, theirs) {
		t.Error("mesh-mail's copy of messenger's content.go (content_rule.go) differs from " + src +
			": change this copy to match messenger's content rule, verbatim, whenever it changes")
	}
}