Acceptance test should be able to support complex states

[midavadim]

Acceptance test should be able to support complex states.

For example Source Mixpanel, stream Funnels:
{
"funnels": {
"8901755": { "date": "2021-07-13" },
"10463655": { "date": "2021-07-13" }
},
"revenue": {
"date": "2021-07-01"
},
"export": {
"date": "2021-06-16"
}
}

Originally posted by @davinchia in #4566 (comment)