package tkn20

import (
	"os"
	"testing"
)

func TestPublicKeyFormat(t *testing.T) {
	paramsData, err := os.ReadFile("testdata/publicKey")
	if err != nil {
		t.Fatalf("Unable to read public key")
	}
	pp := &PublicKey{}
	err = pp.UnmarshalBinary(paramsData)
	if err != nil {
		t.Fatalf("unable to parse public key")
	}
}

func TestSystemSecretKeyFormat(t *testing.T) {
	secret, err := os.ReadFile("testdata/secretKey")
	if err != nil {
		t.Fatalf("Unable to read secret key")
	}
	sk := &SystemSecretKey{}
	err = sk.UnmarshalBinary(secret)
	if err != nil {
		t.Fatalf("unable to parse system secret key")
	}
}

func TestAttributeKeyFormat(t *testing.T) {
	attributeKey, err := os.ReadFile("testdata/attributeKey")
	if err != nil {
		t.Fatalf("Unable to read secret key")
	}
	sk := &AttributeKey{}
	err = sk.UnmarshalBinary(attributeKey)
	if err != nil {
		t.Fatalf("unable to parse secret key")
	}
}

func TestCiphertext(t *testing.T) {
	ciphertext, err := os.ReadFile("testdata/ciphertext")
	if err != nil {
		t.Fatalf("Unable to read ciphertext data")
	}
	policyKey, err := os.ReadFile("testdata/attributeKey")
	if err != nil {
		t.Fatalf("Unable to read secret key")
	}
	sk := AttributeKey{}
	err = sk.UnmarshalBinary(policyKey)
	if err != nil {
		t.Fatalf("unable to parse secret key")
	}
	msg, err := sk.Decrypt(ciphertext)
	if err != nil {
		t.Fatal("unable to decrypt message")
	}
	if string(msg) != "Be sure to drink your ovaltine!" {
		t.Fatal("message incorrect")
	}
}