MockSysCalls.hpp

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#ifndef MOCKSYSCALLS_HPP
#define MOCKSYSCALLS_HPP
 
#include <fcntl.h>
#include <gmock/gmock.h>
#include <sys/ioctl.h>
#include <unistd.h>

class MockSysCalls {
public:
    static MockSysCalls &instance() {
        static MockSysCalls instance;
        return instance;
    }

    MOCK_METHOD(int, open, (const char *path, int flags), ());
    MOCK_METHOD(int, ioctl, (int fd, unsigned long request), ());
    MOCK_METHOD(int, close, (int fd), ());
 
private:
    MockSysCalls() = default;
    ~MockSysCalls() = default;
    MockSysCalls(const MockSysCalls &) = delete;
    MockSysCalls &operator=(const MockSysCalls &) = delete;
};

inline int mock_open(const char *path, int flags, ...) {
    return MockSysCalls::instance().open(path, flags);
}

inline int mock_ioctl(int fd, unsigned long request, ...) {
    return MockSysCalls::instance().ioctl(fd, request);
}

inline int mock_close(int fd) { return MockSysCalls::instance().close(fd); }
 
#endif // MOCKSYSCALLS_HPP