// Copyright (C) 2026 Dcntrlized
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package loghash

import "testing"

func TestHashIsStableSha256(t *testing.T) {
	got := Hash("192.0.2.10")
	if len(got) != 64 {
		t.Fatalf("digest length = %d, want 64 hex chars", len(got))
	}
	if got != Hash("192.0.2.10") {
		t.Fatal("hash is not stable")
	}
	if Hash("192.0.2.11") == got {
		t.Fatal("different addresses collided")
	}
	if Hash("") != "" {
		t.Fatal("empty identifier should map to empty")
	}
}