/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include <comphelper/hash.hxx>

#include <sal/log.hxx>
#include <iomanip>

#include "cppunit/TestFixture.h"
#include "cppunit/extensions/HelperMacros.h"

class TestHash : public CppUnit::TestFixture
{
public:
    void testSHA1();
    void testSHA256();
    void testSHA512();

    CPPUNIT_TEST_SUITE(TestHash);
    CPPUNIT_TEST(testSHA1);
    CPPUNIT_TEST(testSHA256);
    CPPUNIT_TEST(testSHA512);
    CPPUNIT_TEST_SUITE_END();
};

namespace {

std::string tostring(const std::vector<unsigned char>& a)
{
    std::stringstream aStrm;
    for (auto& i:a)
    {
        aStrm << std::setw(2) << std::setfill('0') << std::hex << (int)i;
    }

    return aStrm.str();
}

}

void TestHash::testSHA1()
{
    comphelper::Hash aHash(comphelper::HashType::SHA1);
    const char* const pInput = "";
    aHash.update(reinterpret_cast<const unsigned char*>(pInput), 0);
    std::vector<unsigned char> calculate_hash = aHash.finalize();
    CPPUNIT_ASSERT_EQUAL(size_t(20), calculate_hash.size());
    CPPUNIT_ASSERT_EQUAL(std::string("da39a3ee5e6b4b0d3255bfef95601890afd80709"), tostring(calculate_hash));
}

void TestHash::testSHA256()
{
    comphelper::Hash aHash(comphelper::HashType::SHA256);
    const char* const pInput = "";
    aHash.update(reinterpret_cast<const unsigned char*>(pInput), 0);
    std::vector<unsigned char> calculate_hash = aHash.finalize();
    CPPUNIT_ASSERT_EQUAL(size_t(32), calculate_hash.size());
    CPPUNIT_ASSERT_EQUAL(std::string("e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"), tostring(calculate_hash));
}

void TestHash::testSHA512()
{
    comphelper::Hash aHash(comphelper::HashType::SHA512);
    const char* const pInput = "";
    aHash.update(reinterpret_cast<const unsigned char*>(pInput), 0);
    std::vector<unsigned char> calculate_hash = aHash.finalize();
    CPPUNIT_ASSERT_EQUAL(size_t(64), calculate_hash.size());
    std::string aStr("cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e");
    CPPUNIT_ASSERT_EQUAL(aStr, tostring(calculate_hash));
}

CPPUNIT_TEST_SUITE_REGISTRATION(TestHash);

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */