Use Google Test to test file output?

I'm working on a project to create a simulator (for modeling biological systems) in C++. The simulator takes an input file of parameters and then generates an output file with hundreds of molecule counts at different time points from the simulation. I'm using Google Test for all of my unit testing. I also want to include some higher level tests where I supply an input file with various model parameters and then check that the output file matches some reference file. Someone recommended using bash-tap for these higher level tests, but I'd prefer to stick to Google Test if possible. Is it possible to use Google Test for the higher level tests that I've described here?