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// Copyright 2012 Google Inc. All Rights Reserved.
//
// Licensed 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.
#include <gtest/gtest.h>
#include <polo/util/poloutil.h>
namespace polo {
namespace util {
TEST(PoloUtilTest, BytesToHexString) {
uint8_t bytes[4] = {0xAA, 0xBB, 0xCC, 0xDD};
std::string result = PoloUtil::BytesToHexString(bytes, 4);
ASSERT_EQ(std::string("AABBCCDD"), result);
}
TEST(PoloUtilTest, BytesToHexStringLeadingNull) {
uint8_t bytes[4] = {0x00, 0xBB, 0xCC, 0xDD};
std::string result = PoloUtil::BytesToHexString(bytes, 4);
ASSERT_EQ(std::string("BBCCDD"), result);
}
TEST(PoloUtilTest, HexStringToBytes) {
uint8_t* bytes;
size_t length = PoloUtil::HexStringToBytes(std::string("AABBCCDD"), bytes);
ASSERT_EQ(4, length);
ASSERT_EQ(0xAA, bytes[0]);
ASSERT_EQ(0xBB, bytes[1]);
ASSERT_EQ(0xCC, bytes[2]);
ASSERT_EQ(0xDD, bytes[3]);
delete[] bytes;
}
TEST(PoloUtilTest, IntToBigEndianBytes) {
uint8_t* bytes;
PoloUtil::IntToBigEndianBytes(0xAABBCCDD, bytes);
ASSERT_EQ(0xAA, bytes[0]);
ASSERT_EQ(0xBB, bytes[1]);
ASSERT_EQ(0xCC, bytes[2]);
ASSERT_EQ(0xDD, bytes[3]);
delete[] bytes;
}
TEST(PoloUtilTest, IntToBigEndianBytes_NullBytes) {
uint8_t* bytes;
PoloUtil::IntToBigEndianBytes(0x00AABB00, bytes);
ASSERT_EQ(0x00, bytes[0]);
ASSERT_EQ(0xAA, bytes[1]);
ASSERT_EQ(0xBB, bytes[2]);
ASSERT_EQ(0x00, bytes[3]);
delete[] bytes;
}
TEST(PoloUtilTest, BigEndianBytesToInt) {
uint8_t bytes[4] = {0xAA, 0xBB, 0xCC, 0xDD};
const uint32_t value = PoloUtil::BigEndianBytesToInt(bytes);
ASSERT_EQ(0xAABBCCDD, value);
}
TEST(PoloUtilTest, BigEndianBytesToInt_NullBytes) {
uint8_t bytes[4] = {0x00, 0xAA, 0xBB, 0x00};
const uint32_t value = PoloUtil::BigEndianBytesToInt(bytes);
ASSERT_EQ(0x00AABB00, value);
}
TEST(PoloUtilTest, GenerateRandomBytes) {
uint8_t* random1 = PoloUtil::GenerateRandomBytes(16);
ASSERT_TRUE(random1);
const std::string value1 = PoloUtil::BytesToHexString(random1, 16);
delete[] random1;
uint8_t* random2 = PoloUtil::GenerateRandomBytes(16);
ASSERT_TRUE(random2);
const std::string value2 = PoloUtil::BytesToHexString(random2, 16);
delete[] random2;
ASSERT_NE(value1, value2);
}
} // namespace util
} // namespace polo
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