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openmw/apps/components_tests/files/hash.cpp

72 lines
2.6 KiB
C++

#include <components/files/constrainedfilestream.hpp>
#include <components/files/conversion.hpp>
#include <components/files/hash.hpp>
#include <components/testing/util.hpp>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <algorithm>
#include <array>
#include <fstream>
#include <sstream>
#include <string>
namespace
{
using namespace testing;
using namespace TestingOpenMW;
using namespace Files;
struct Params
{
std::size_t mSize;
std::array<std::uint64_t, 2> mHash;
};
struct FilesGetHash : TestWithParam<Params>
{
};
TEST(FilesGetHash, shouldClearErrors)
{
const auto fileName = temporaryFilePath("fileName");
std::string content;
std::fill_n(std::back_inserter(content), 1, 'a');
std::istringstream stream(content);
stream.exceptions(std::ios::failbit | std::ios::badbit);
EXPECT_THAT(getHash(Files::pathToUnicodeString(fileName), stream),
ElementsAre(9607679276477937801ull, 16624257681780017498ull));
}
TEST_P(FilesGetHash, shouldReturnHashForStringStream)
{
const auto fileName = temporaryFilePath("fileName");
std::string content;
std::fill_n(std::back_inserter(content), GetParam().mSize, 'a');
std::istringstream stream(content);
EXPECT_EQ(getHash(Files::pathToUnicodeString(fileName), stream), GetParam().mHash);
}
TEST_P(FilesGetHash, shouldReturnHashForConstrainedFileStream)
{
std::string fileName(UnitTest::GetInstance()->current_test_info()->name());
std::replace(fileName.begin(), fileName.end(), '/', '_');
std::string content;
std::fill_n(std::back_inserter(content), GetParam().mSize, 'a');
const auto file = outputFilePath(fileName);
std::fstream(file, std::ios_base::out | std::ios_base::binary)
.write(content.data(), static_cast<std::streamsize>(content.size()));
const auto stream = Files::openConstrainedFileStream(file, 0, content.size());
EXPECT_EQ(getHash(Files::pathToUnicodeString(file), *stream), GetParam().mHash);
}
INSTANTIATE_TEST_SUITE_P(Params, FilesGetHash,
Values(Params{ 0, { 0, 0 } }, Params{ 1, { 9607679276477937801ull, 16624257681780017498ull } },
Params{ 128, { 15287858148353394424ull, 16818615825966581310ull } },
Params{ 1000, { 11018119256083894017ull, 6631144854802791578ull } },
Params{ 4096, { 11972283295181039100ull, 16027670129106775155ull } },
Params{ 4097, { 16717956291025443060ull, 12856404199748778153ull } },
Params{ 5000, { 15775925571142117787ull, 10322955217889622896ull } }));
}