cryptor_aes_test.go

// Licensed to The Moov Authors under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. The Moov Authors licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package cryptfs

import (
	"strings"
	"testing"

	"github.com/stretchr/testify/require"
)

func TestCryptorAES(t *testing.T) {
	cc, err := NewAESCryptor([]byte(strings.Repeat("1", 16)))
	require.NoError(t, err)

	enc, err := cc.encrypt([]byte("hello, world"))
	require.NoError(t, err)
	require.Greater(t, len(enc), 0)

	dec1, err := cc.decrypt(enc)
	require.NoError(t, err)
	require.Equal(t, "hello, world", string(dec1))

	dec2, err := cc.decrypt(enc)
	require.NoError(t, err)
	require.Equal(t, "hello, world", string(dec2))
}

func TestCryptorAESError(t *testing.T) {
	cc, err := NewAESCryptor([]byte(strings.Repeat("1", 16)))
	require.NoError(t, err)

	enc, err := cc.encrypt(nil)
	require.NotEmpty(t, enc)
	require.NoError(t, err)

	// decrypt invalid data
	plain, err := cc.decrypt([]byte("invalid"))
	require.Empty(t, plain)
	require.NotNil(t, err)
}