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#include <cpp-utils/data/DataFixture.h>
#include "testutils/FuseWriteTest.h"
#include "../../testutils/InMemoryFile.h"
#include "fspp/fs_interface/FuseErrnoException.h"
using ::testing::Invoke;
using ::testing::Action;
using cpputils::DataFixture;
using cpputils::Data;
using namespace fspp::fuse;
class FuseWriteOverflowTest: public FuseWriteTest {
public:
fspp::num_bytes_t FILESIZE;
fspp::num_bytes_t WRITESIZE;
fspp::num_bytes_t OFFSET;
WriteableInMemoryFile testFile;
Data writeData;
FuseWriteOverflowTest(fspp::num_bytes_t filesize, fspp::num_bytes_t writesize, fspp::num_bytes_t offset)
: FILESIZE(filesize), WRITESIZE(writesize), OFFSET(offset), testFile(DataFixture::generate(FILESIZE.value())), writeData(DataFixture::generate(WRITESIZE.value())) {
ReturnIsFileOnLstatWithSize(FILENAME, FILESIZE);
OnOpenReturnFileDescriptor(FILENAME, 0);
EXPECT_CALL(*fsimpl, write(0, testing::_, testing::_, testing::_)).WillRepeatedly(WriteToFile);
}
// This write() mock implementation writes to the stored virtual file.
Action<void(int, const void*, fspp::num_bytes_t, fspp::num_bytes_t)> WriteToFile =
Invoke([this](int, const void *buf, fspp::num_bytes_t count, fspp::num_bytes_t offset) {
testFile.write(buf, count, offset);
});
};
class FuseWriteOverflowTestWithNonemptyFile: public FuseWriteOverflowTest {
public:
FuseWriteOverflowTestWithNonemptyFile(): FuseWriteOverflowTest(fspp::num_bytes_t(1000), fspp::num_bytes_t(2000), fspp::num_bytes_t(500)) {}
};
TEST_F(FuseWriteOverflowTestWithNonemptyFile, WriteMoreThanFileSizeFromBeginning) {
WriteFile(FILENAME, writeData.data(), WRITESIZE, fspp::num_bytes_t(0));
EXPECT_EQ(WRITESIZE, testFile.size());
EXPECT_TRUE(testFile.fileContentEquals(writeData, fspp::num_bytes_t(0)));
}
TEST_F(FuseWriteOverflowTestWithNonemptyFile, WriteMoreThanFileSizeFromMiddle) {
WriteFile(FILENAME, writeData.data(), WRITESIZE, OFFSET);
EXPECT_EQ(OFFSET + WRITESIZE, testFile.size());
EXPECT_TRUE(testFile.regionUnchanged(fspp::num_bytes_t(0), OFFSET));
EXPECT_TRUE(testFile.fileContentEquals(writeData, OFFSET));
}
TEST_F(FuseWriteOverflowTestWithNonemptyFile, WriteAfterFileEnd) {
WriteFile(FILENAME, writeData.data(), WRITESIZE, FILESIZE + OFFSET);
EXPECT_EQ(FILESIZE + OFFSET + WRITESIZE, testFile.size());
EXPECT_TRUE(testFile.regionUnchanged(fspp::num_bytes_t(0), FILESIZE));
EXPECT_TRUE(testFile.fileContentEquals(writeData, FILESIZE + OFFSET));
}
class FuseWriteOverflowTestWithEmptyFile: public FuseWriteOverflowTest {
public:
FuseWriteOverflowTestWithEmptyFile(): FuseWriteOverflowTest(fspp::num_bytes_t(0), fspp::num_bytes_t(2000), fspp::num_bytes_t(500)) {}
};
TEST_F(FuseWriteOverflowTestWithEmptyFile, WriteToBeginOfEmptyFile) {
WriteFile(FILENAME, writeData.data(), WRITESIZE, fspp::num_bytes_t(0));
EXPECT_EQ(WRITESIZE, testFile.size());
EXPECT_TRUE(testFile.fileContentEquals(writeData, fspp::num_bytes_t(0)));
}
TEST_F(FuseWriteOverflowTestWithEmptyFile, WriteAfterFileEnd) {
WriteFile(FILENAME, writeData.data(), WRITESIZE, OFFSET);
EXPECT_EQ(OFFSET + WRITESIZE, testFile.size());
EXPECT_TRUE(testFile.fileContentEquals(writeData, OFFSET));
}
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