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// Copyright 2019 Google LLC
//
// 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 "tink/subtle/subtle_util.h"
#include <string>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace crypto {
namespace tink {
namespace subtle {
using ::testing::Eq;
TEST(SubtleUtilTest, Basic) {
std::string result = BigEndian32(0x12345678);
EXPECT_EQ(result[0], 0x12);
EXPECT_EQ(result[1], 0x34);
EXPECT_EQ(result[2], 0x56);
EXPECT_EQ(result[3], 0x78);
}
TEST(SubtleUtilTest, ResizeStringUninitialized) {
std::string s;
for (int len = 0; len <= 123; len += 17) {
int old_len = s.size();
ResizeStringUninitialized(&s, len);
for (int i = old_len; i < len; ++i) {
s[i] = 'a';
}
EXPECT_THAT(s, Eq(std::string(len, 'a')));
}
for (int len = 100; len >= 0; len -= 20) {
ResizeStringUninitialized(&s, len);
EXPECT_THAT(s, Eq(std::string(len, 'a')));
}
}
} // namespace subtle
} // namespace tink
} // namespace crypto
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