package app

import (
	"strings"
	"testing"
)

func TestDeploymentCodeFormatAndNormalization(t *testing.T) {
	code, err := deploymentCode()
	if err != nil {
		t.Fatal(err)
	}
	if !strings.HasPrefix(code, "TAPM-") || len(code) != 16 {
		t.Fatalf("unexpected code format: %q", code)
	}
	if got := normalizeCode(strings.ToLower(code)); got != code {
		t.Fatalf("normalizeCode() = %q, want %q", got, code)
	}
}

func TestSignature(t *testing.T) {
	secret := []byte("01234567890123456789012345678901")
	signature := signValue(secret, "state")
	if !verifySignature(secret, "state", signature) {
		t.Fatal("valid signature was rejected")
	}
	if verifySignature(secret, "different", signature) {
		t.Fatal("invalid signature was accepted")
	}
}