>     counter init should create a counter with value = 0
>   ․ counter init should create a counter with value = 0
>     counter add should add the given ammount to the counter value
>   ․ counter add should add the given ammount to the counter value
>     counter add should subtract the given amount when unapplied
>   ․ counter add should subtract the given amount when unapplied
>     counter get should return the counter value
>   ․ counter get should return the counter value
23c31
<   10 passing (27ms)
---
>   14 passing (32ms)