////////////////////////////////////////////////////////////////////////////////
// Copyright 2016 Google LLC.
//
// This software is licensed under the terms defined in the Widevine Master
// License Agreement. For a copy of this agreement, please contact
// widevine-licensing@google.com.
////////////////////////////////////////////////////////////////////////////////

#include "common/sha_util.h"
#include "testing/gunit.h"
#include "absl/strings/escaping.h"

namespace widevine {

TEST(ShaUtilTest, Sha1Empty) {
  const uint8_t kExpected[] = {
      0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d, 0x32, 0x55,
      0xbf, 0xef, 0x95, 0x60, 0x18, 0x90, 0xaf, 0xd8, 0x07, 0x09,
  };
  EXPECT_EQ(std::string(kExpected, kExpected + sizeof(kExpected)), Sha1_Hash(""));
}

TEST(ShaUtilTest, Sha256Empty) {
  const uint8_t kExpected[] = {
      0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, 0x9a, 0xfb, 0xf4,
      0xc8, 0x99, 0x6f, 0xb9, 0x24, 0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b,
      0x93, 0x4c, 0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55,
  };
  EXPECT_EQ(std::string(kExpected, kExpected + sizeof(kExpected)), Sha256_Hash(""));
}

TEST(ShaUtilTest, Sha1) {
  const uint8_t kExpected[] = {
      0x6b, 0x63, 0xa5, 0xe3, 0x6b, 0xfe, 0x54, 0x19, 0x4e, 0xfe,
      0x9f, 0xe0, 0x29, 0x7e, 0xd8, 0x11, 0x0f, 0x10, 0x0d, 0x1d,
  };
  EXPECT_EQ(std::string(kExpected, kExpected + sizeof(kExpected)),
            Sha1_Hash("random data"));
}

TEST(ShaUtilTest, Sha256) {
  const uint8_t kExpected[] = {
      0x62, 0x4b, 0x56, 0xb3, 0x38, 0x1b, 0xbc, 0xe0, 0x4f, 0x58, 0x88,
      0x83, 0xb4, 0x2f, 0x4e, 0x27, 0xfe, 0xc0, 0x95, 0x56, 0xf8, 0x61,
      0xcf, 0x94, 0x49, 0xe6, 0x5f, 0x26, 0xea, 0x70, 0xad, 0x88,
  };
  EXPECT_EQ(std::string(kExpected, kExpected + sizeof(kExpected)),
            Sha256_Hash("random data"));
}

TEST(ShaUtilTest, GenerateSha1Uuid) {
  std::string name_space =
      absl::HexStringToBytes("4d20ad7dd95bc4b250fae56fb143e774");
  std::string name = "some seed value";
  EXPECT_EQ("730621a55c675c4086be38e72aefa03e",
            absl::BytesToHexString(GenerateSha1Uuid(name_space, name)));
}

}  // namespace widevine