I don’t see why sixels couldn’t work. You’d probably want a tool to decode them, diff the images, and then output another sixel image. I’m admittedly not sure of such a tool existing off the shelf though.
I’m not aware of text editors supporting sixels, which could make preparing the tests a challenge. Certainly, you could imagine a text editor supporting them, but I’m not aware of one that does personally.
I will concede that for your specific use case, an off the shelf ASCII plotting library probably involves less custom tooling.
I’m not aware of text editors supporting sixels, which could make preparing the tests a challenge. Certainly, you could imagine a text editor supporting them, but I’m not aware of one that does personally.
I will concede that for your specific use case, an off the shelf ASCII plotting library probably involves less custom tooling.