src/lib/crypto_util/hash_test.cc

// Copyright 2017 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/lib/crypto_util/hash.h"

#include <string>

#include <gtest/gtest.h>

namespace cobalt::crypto::hash {

TEST(HashTest, TestHash) {
  std::string data =
      "The algorithms were first published in 2001 in the draft FIPS PUB "
      "180-2, at which time public review and comments were accepted. In "
      "August 2002, FIPS PUB 180-2 became the new Secure Hash Standard, "
      "replacing FIPS PUB 180-1, which was released in April 1995. The updated "
      "standard included the original SHA-1 algorithm, with updated technical "
      "notation consistent with that describing the inner workings of the "
      "SHA-2 family.[9]";

  // Hash the data into digest.
  byte digest[DIGEST_SIZE];
  EXPECT_TRUE(Hash(reinterpret_cast<byte*>(&data[0]), data.size(), digest));

  // Generate a human-readable string representing the bytes of digest.
  std::ostringstream stream;
  stream << std::hex << std::setfill('0');
  for (unsigned char ch : digest) {
    stream << std::setw(2) << static_cast<int>(ch);
  }

  // Compare this to an expected result.
  EXPECT_EQ(std::string("fc11f3cbffea99f65944e50e72e5bfc09674eed67bcebcd76ec0f9dc90faef05"),
            stream.str());
}

}  // namespace cobalt::crypto::hash