Choose specific variant when required

[laytong]

In our workplace we use visual diffing tools on snapshots as part of our regression testing.

When taking snapshots for our diffs it would be useful if we could specify a variant by name to keep our visual diffs consistent while a/b testing.

It looks like this is almost possible looking at the API docs, please let me know if this is possible.

[olahol]

It's possible to keep it consistent by setting the random or the get prop. For example:

function random() {
  if (TESTING) {
    return 0
  }

  return Math.random()
}

[laytong]

Hey, thanks for getting back to me.

This almost works as I want. Once a user's variant has been set (i.e. they already have a cookie set) I want that to be used. I just want to override in that specific instance.

[olahol]

You can also modify the get prop.

<Experiment get={(key) => {
   if (cookie.get(key)) {
      return cookie.get(key)
   }

   return "variant"
}} />