libcryfs/test/fspp/fuse/read/FuseReadOverflowTest.cpp
2021-04-21 17:37:40 -07:00

36 lines
1.3 KiB
C++

#include "testutils/FuseReadTest.h"
#include "fspp/fs_interface/FuseErrnoException.h"
using namespace fspp::fuse;
class FuseReadOverflowTest: public FuseReadTest {
public:
static constexpr fspp::num_bytes_t FILESIZE = fspp::num_bytes_t(1000);
static constexpr fspp::num_bytes_t READSIZE = fspp::num_bytes_t(2000);
static constexpr fspp::num_bytes_t OFFSET = fspp::num_bytes_t(500);
void SetUp() override {
ReturnIsFileOnLstatWithSize(FILENAME, FILESIZE);
OnOpenReturnFileDescriptor(FILENAME, 0);
EXPECT_CALL(*fsimpl, read(0, testing::_, testing::_, testing::_)).WillRepeatedly(ReturnSuccessfulReadRegardingSize(FILESIZE));
}
};
constexpr fspp::num_bytes_t FuseReadOverflowTest::FILESIZE;
constexpr fspp::num_bytes_t FuseReadOverflowTest::READSIZE;
constexpr fspp::num_bytes_t FuseReadOverflowTest::OFFSET;
TEST_F(FuseReadOverflowTest, ReadMoreThanFileSizeFromBeginning) {
std::array<char, READSIZE.value()> buf{};
auto retval = ReadFileReturnError(FILENAME, buf.data(), READSIZE, fspp::num_bytes_t(0));
EXPECT_EQ(FILESIZE, retval.read_bytes);
}
TEST_F(FuseReadOverflowTest, ReadMoreThanFileSizeFromMiddle) {
std::array<char, READSIZE.value()> buf{};
auto retval = ReadFileReturnError(FILENAME, buf.data(), READSIZE, OFFSET);
EXPECT_EQ(FILESIZE-OFFSET, retval.read_bytes);
}