package logic

import (
	"encoding/hex"
	"testing"
)

func TestNewKeyIden(t *testing.T) {
	iden := newKeyIden()
	if len(iden) != 32 {
		t.Fatalf("unexpected iden length: %d", len(iden))
	}
	if _, err := hex.DecodeString(iden); err != nil {
		t.Fatalf("iden is not hex: %v", err)
	}
}

func TestDeriveKeyContent(t *testing.T) {
	iden := newKeyIden()

	first, err := deriveKeyContent(iden)
	if err != nil {
		t.Fatalf("derive first content: %v", err)
	}
	second, err := deriveKeyContent(iden)
	if err != nil {
		t.Fatalf("derive second content: %v", err)
	}

	if len(first) != 64 {
		t.Fatalf("unexpected content length: %d", len(first))
	}
	if _, err := hex.DecodeString(first); err != nil {
		t.Fatalf("content is not hex: %v", err)
	}
	if first == second {
		t.Fatal("content should differ because the seed is random")
	}
}