Test using scenario on Daml

Questions
7

The issue here is that your auction contract is signed by both the auctioneer (Alice) and the bidder (Bob). But you only have the authorization of the submitter here (Alice) so Bob’s authorization is missing.

Looking at your model, I’m not actually sure this is an issue. Looking at your code it seems like you don’t want people to create Auction contracts directly, instead they should be created by exercising MakeABid. In that context you have authorization from both the signatory of the AuctionBid contract as well as the controller so you can create it. If your adjust your scenario to do this, it passes:

test = scenario do 
  alice <- getParty "Alice"
  bob <- getParty "Bob"
  bid <- submit alice do
    create AuctionBid
      with 
         auctioneer = alice
         bidder = bob 
         object = "Painting"
         bid = 2000.00
         limit = 5000.00
         currency = "Pound"
         start =  time (date 2022 Apr 5) 14 30 00
         end =  time (date 2022 Apr 5) 15 30 00
  submit bob do
    exercise bid MakeABid with
      limitArg = 5000.00
      startArg = time (date 2022 Apr 5) 14 30 00
      endArg = time (date 2022 Apr 5) 15 30 00
      bidArg = 2000.00
      currencyArg = "Pound"
  pure ()

Note my comment from Parse error on input do - #9 by cocreature You are currently duplicating things like start and end and other fields both on creation of the Auction and then also as choice arguments. You might want to reconsider this and try to structure things such that they only appear in one or the other:

  1. start and end should probably be a property of the action not of the individual bid so set them in the template.
  2. Same for the limit.
  3. The bid amount however seems like it should not be set in the template and only passed in MakeABid.
  4. Currency depends a bit. Should all bids have the same currency? If so put it on the template, if not put it in the choice.

In summary, something like this might be closer to what you were trying to model:

template AuctionBid
   with 
       auctioneer: Party
       bidder: Party
       object: Text
       currency: Text
       limit: Decimal
       start: Time
       end: Time
    where 
       signatory auctioneer 
       
       controller bidder can
          MakeABid: ContractId Auction
             with
                bid: Decimal
            do
              currentTime <- getTime
              create Auction
                 with
                    limit = limit
                    start = start
                    end = end
                    bid= bid
                    currency = currency
                    auctioneer = auctioneer
                    bidder = bidder
                    object = object
                    dateAuction = toDateUTC currentTime

                    
                  
          Decline: ContractId DeclineBid 
             with 
                reason: Text 
             do 
              create DeclineBid with ..