I have almost finishing up the things right now. I tried to pass an JS array to rowGetter function and it didn't work. I looked in the official doc and I didn't find that it supports for arrays. It says it accepts a function. So, currently I'm having an function and which made the snapshot file to be looks like this:
// Jest Snapshot v1, https://goo.gl/fbAQLP
exports[`<ReportAsTableView /> component displays as expected 1`] = `
Meanwhile, I tried the test for chart objects and it has no luck on see the things inside the
<canvas>. But for now, I have written the tests at least for those.