libcryfs/test/fspp/fuse/openFile/FuseOpenFileDescriptorTest.cpp

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#include "testutils/FuseOpenTest.h"
using ::testing::_;
using ::testing::Eq;
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using ::testing::WithParamInterface;
using ::testing::Values;
using ::testing::Return;
using cpputils::unique_ref;
using cpputils::make_unique_ref;
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class FuseOpenFileDescriptorTest: public FuseOpenTest, public WithParamInterface<int> {
public:
void OpenAndReadFile(const char *filename) {
auto fs = TestFS();
auto fd = OpenFile(fs.get(), filename);
ReadFile(fd->fd());
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}
private:
unique_ref<OpenFileHandle> OpenFile(const TempTestFS *fs, const char *filename) {
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auto realpath = fs->mountDir() / filename;
auto fd = make_unique_ref<OpenFileHandle>(realpath.string().c_str(), O_RDONLY);
EXPECT_GE(fd->fd(), 0) << "Opening file failed";
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return fd;
}
void ReadFile(int fd) {
uint8_t buf = 0;
int retval = ::read(fd, &buf, 1);
EXPECT_EQ(1, retval) << "Reading file failed";
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}
};
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INSTANTIATE_TEST_SUITE_P(FuseOpenFileDescriptorTest, FuseOpenFileDescriptorTest, Values(0, 2, 5, 1000, 1024*1024*1024));
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TEST_P(FuseOpenFileDescriptorTest, TestReturnedFileDescriptor) {
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ReturnIsFileOnLstatWithSize(FILENAME, fspp::num_bytes_t(1));
EXPECT_CALL(*fsimpl, openFile(Eq(FILENAME), _))
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.Times(1).WillOnce(Return(GetParam()));
EXPECT_CALL(*fsimpl, read(GetParam(), _, _, _)).Times(1).WillOnce(Return(fspp::num_bytes_t(1)));
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OpenAndReadFile(FILENAME);
}