用C语言测试二进制格式阅读器的单元测试

I am writing a C library that reads a binary file format. I don't control the binary format; it's produced by a proprietary data acquisition program and is relatively complicated. As it is one of my first forays into C programming and binary file parsing, I am having a bit of trouble figuring out how to structure the code for testing and portability.I am writing a C library that reads a binary fi