An example of multisig contract in CameLIGO

sign_proposal

target_fa2

transfers

create_proposal

proposal_counter

proposal_map

signers

threshold

metadata

[@no_mutation] let only_signer = "Only one of the contract signer can create an proposal"
[@no_mutation] let amount_must_be_zero_tez = "You must not send Tezos to the smart contract"
[@no_mutation] let no_proposal_exist = "No proposal exists for this counter"
[@no_mutation] let has_already_signed = "You have already signed this proposal"
[@no_mutation] let unknown_contract_entrypoint = "Cannot connect to the target transfer token entrypoint"

[@no_mutation] let undefined_token = "FA2_TOKEN_UNDEFINED"
[@no_mutation] let ins_balance     = "FA2_INSUFFICIENT_BALANCE"
[@no_mutation] let no_transfer     = "FA2_TX_DENIED"
[@no_mutation] let not_owner       = "FA2_NOT_OWNER"
[@no_mutation] let not_operator    = "FA2_NOT_OPERATOR"
[@no_mutation] let not_supported   = "FA2_OPERATORS_UNSUPPORTED"
[@no_mutation] let rec_hook_fail   = "FA2_RECEIVER_HOOK_FAILED"
[@no_mutation] let send_hook_fail  = "FA2_SENDER_HOOK_FAILED"
[@no_mutation] let rec_hook_undef  = "FA2_RECEIVER_HOOK_UNDEFINED"
[@no_mutation] let send_hook_under = "FA2_SENDER_HOOK_UNDEFINED"


(**
   This file implement the TZIP-12 protocol (a.k.a FA2) for NFT on Tezos
   copyright Wulfman Corporation 2021
*)

#import "errors.mligo" "Errors"

module Operators = struct
   type owner    = address
   type operator = address
   type token_id = nat
   type t = ((owner * operator), token_id set) big_map

(** if transfer policy is Owner_or_operator_transfer *)
   let assert_authorisation (operators : t) (from_ : address) (token_id : nat) : unit =
      let sender_ = (Tezos.get_sender ()) in
      if (sender_ = from_) then ()
      else
      let authorized = match Big_map.find_opt (from_,sender_) operators with
         Some (a) -> a | None -> Set.empty
      in if Set.mem token_id authorized then ()
      else failwith Errors.not_operator
(** if transfer policy is Owner_transfer
   let assert_authorisation (operators : t) (from_ : address) : unit =
      let sender_ = (Tezos.get_sender ()) in
      if (sender_ = from_) then ()
      else failwith Errors.not_owner
*)

(** if transfer policy is No_transfer
   let assert_authorisation (operators : t) (from_ : address) : unit =
      failwith Errors.no_owner
*)

   [@no_mutation] let assert_update_permission (owner : owner) : unit =
      assert_with_error (owner = (Tezos.get_sender ())) "The sender can only manage operators for his own token"
   (** For an administator
      let admin = tz1.... in
      assert_with_error ((Tezos.get_sender ()) = admiin) "Only administrator can manage operators"
   *)

   let add_operator (operators : t) (owner : owner) (operator : operator) (token_id : token_id) : t =
      if owner = operator then operators (* assert_authorisation always allow the owner so this case is not relevant *)
      else
         let () = assert_update_permission owner in
         let auth_tokens = match Big_map.find_opt (owner,operator) operators with
            Some (ts) -> ts | None -> Set.empty in
         let auth_tokens  = Set.add token_id auth_tokens in
         Big_map.update (owner,operator) (Some auth_tokens) operators

   let remove_operator (operators : t) (owner : owner) (operator : operator) (token_id : token_id) : t =
      if owner = operator then operators (* assert_authorisation always allow the owner so this case is not relevant *)
      else
         let () = assert_update_permission owner in
         let auth_tokens = match Big_map.find_opt (owner,operator) operators with
         None -> None | Some (ts) ->
            let ts = Set.remove token_id ts in
            [@no_mutation] let ts = if (Set.cardinal ts = 0n) then None else Some (ts) in
            ts
         in
         Big_map.update (owner,operator) auth_tokens operators
end

module Ledger = struct
   type token_id = nat
   type owner = address
   type t = (token_id,owner) big_map

   let is_owner_of (ledger:t) (token_id : token_id) (owner: address) : bool =
      (** We already sanitized token_id, a failwith here indicated a patological storage *)
      let current_owner = Option.unopt (Big_map.find_opt token_id ledger) in
      current_owner=owner

   let assert_owner_of (ledger:t) (token_id : token_id) (owner: address) : unit =
      assert_with_error (is_owner_of ledger token_id owner) Errors.ins_balance

   let transfer_token_from_user_to_user (ledger : t) (token_id : token_id) (from_ : owner) (to_ : owner) : t =
      let () = assert_owner_of ledger token_id from_ in
      let ledger = Big_map.update token_id (Some to_) ledger in
      ledger
end

module TokenMetadata = struct
   (**
      This should be initialized at origination, conforming to either
      TZIP-12 : https://gitlab.com/tezos/tzip/-/blob/master/proposals/tzip-12/tzip-12.md#token-metadata
      or TZIP-16 : https://gitlab.com/tezos/tzip/-/blob/master/proposals/tzip-12/tzip-12.md#contract-metadata-tzip-016
   *)
   type data = {token_id:nat;token_info:(string,bytes)map}
   type t = (nat, data) big_map
end

module Storage = struct
   type token_id = nat
   type t = {
      ledger : Ledger.t;
      token_metadata : TokenMetadata.t;
      operators : Operators.t;
   }

   let is_owner_of (s:t) (owner : address) (token_id : token_id) : bool =
      Ledger.is_owner_of s.ledger token_id owner

   let assert_token_exist (s:t) (token_id : nat) : unit  =
      let _ = Option.unopt_with_error (Big_map.find_opt token_id s.token_metadata)
         Errors.undefined_token in
      ()

   let set_ledger (s:t) (ledger:Ledger.t) = {s with ledger = ledger}

   let get_operators (s:t) = s.operators
   let set_operators (s:t) (operators:Operators.t) = {s with operators = operators}
end


type storage = Storage.t

(** Transfer entrypoint *)
type atomic_trans = [@layout:comb] {
   to_      : address;
   token_id : nat;
}

type transfer_from = {
   from_ : address;
   tx    : atomic_trans list
}
type transfer = transfer_from list

[@entry]
let transfer : transfer -> storage -> operation list * storage =
   fun (t:transfer) (s:storage) ->
   (* This function process the "tx" list. Since all transfer share the same "from_" address, we use a se *)
   let process_atomic_transfer (from_:address) (ledger, t:Ledger.t * atomic_trans) =
      let {to_;token_id} = t in
      let ()     = Storage.assert_token_exist s token_id in
      let ()     = Operators.assert_authorisation s.operators from_ token_id in
      let ledger = Ledger.transfer_token_from_user_to_user ledger token_id from_ to_ in
      ledger
   in
   let process_single_transfer (ledger, t:Ledger.t * transfer_from ) =
      let {from_;tx} = t in
      let ledger     = List.fold_left (process_atomic_transfer from_) ledger tx in
      ledger
   in
   let ledger = List.fold_left process_single_transfer s.ledger t in
   let s = Storage.set_ledger s ledger in
   ([]: operation list),s

type request = {
   owner    : address;
   token_id : nat;
}

type callback = [@layout:comb] {
   request : request;
   balance : nat;
}

type balance_of = [@layout:comb] {
   requests : request list;
   callback : callback list contract;
}

(** Balance_of entrypoint *)
[@entry]
let balance_of : balance_of -> storage -> operation list * storage =
   fun (b: balance_of) (s: storage) ->
   let {requests;callback} = b in
   let get_balance_info (request : request) : callback =
      let {owner;token_id} = request in
      let ()       = Storage.assert_token_exist  s token_id in
      [@no_mutation] let balance_ = if Storage.is_owner_of s owner token_id then 1n else 0n in
      {request=request;balance=balance_}
   in
   let callback_param = List.map get_balance_info requests in
   [@no_mutation] let operation = Tezos.transaction callback_param 0tez callback in
   ([operation]: operation list),s

(** Update_operators entrypoint *)
type operator = [@layout:comb] {
   owner    : address;
   operator : address;
   token_id : nat;
}
type unit_update      = Add_operator of operator | Remove_operator of operator
type update_operators = unit_update list

[@entry]
let update_operators : update_operators -> storage -> operation list * storage =
   fun (updates: update_operators) (s: storage) ->
   let update_operator (operators,update : Operators.t * unit_update) = match update with
      Add_operator    {owner=owner;operator=operator;token_id=token_id} -> Operators.add_operator    operators owner operator token_id
   |  Remove_operator {owner=owner;operator=operator;token_id=token_id} -> Operators.remove_operator operators owner operator token_id
   in
   let operators = Storage.get_operators s in
   let operators = List.fold_left update_operator operators updates in
   let s = Storage.set_operators s operators in
   ([]: operation list),s

(** If transfer_policy is  No_transfer or Owner_transfer
[@entry]
let update_operators : update_operators -> storage -> operation list * storage =
   fun (updates: update_operators) (s: storage) ->
   let () = failwith Errors.not_supported in
   ([]: operation list),s
*)

#import "../common/errors.mligo" "Errors"
#import "storage.mligo" "Storage"

[@inline]
let only_signer (storage : Storage.Types.t) : unit = 
    assert_with_error (Set.mem (Tezos.get_sender ()) storage.signers) Errors.only_signer

[@inline]
let amount_must_be_zero_tez (an_amout : tez) : unit =
    assert_with_error (an_amout = 0tez) Errors.amount_must_be_zero_tez

[@inline]
let not_yet_signer (proposal : Storage.Types.proposal) : unit = 
    assert_with_error (not Set.mem (Tezos.get_sender ()) proposal.approved_signers) Errors.has_already_signed



#import "../common/constants.mligo" "Constants"
#import "parameter.mligo" "Parameter"
#import "storage.mligo" "Storage"
#import "conditions.mligo" "Conditions"
#import "contracts/fa2.mligo" "FA2"

// ===============================================================================================

module Preamble = struct
    [@inline]
    let prepare_new_proposal (params, storage: Parameter.Types.proposal_params * Storage.Types.t) : Storage.Types.proposal =
        let () = Conditions.only_signer storage in
        let () = Conditions.amount_must_be_zero_tez (Tezos.get_amount ()) in
        Storage.Utils.create_proposal params

    [@inline]
    let retrieve_a_proposal (proposal_number, storage: Parameter.Types.proposal_number * Storage.Types.t) : Storage.Types.proposal =
        let () = Conditions.only_signer storage in
        let target_proposal = Storage.Utils.retrieve_proposal(proposal_number, storage) in
        let () = Conditions.not_yet_signer target_proposal in
        target_proposal
end

// ===============================================================================================

type result = operation list * Storage.Types.t

(**
 * Proposal creation
 *)
[@entry]
let create_proposal params (storage : Storage.Types.t) : result =
    let proposal = Preamble.prepare_new_proposal(params, storage) in
    let storage = Storage.Utils.register_proposal(proposal, storage) in
    (Constants.no_operation, storage)

(**
 * Proposal signature
 *)

[@entry]
let sign_proposal proposal_number (storage : Storage.Types.t) : result =
    let proposal = Preamble.retrieve_a_proposal(proposal_number, storage) in

    let proposal = Storage.Utils.add_signer_to_proposal(proposal, (Tezos.get_sender ()), storage.threshold) in
    let storage = Storage.Utils.update_proposal(proposal_number, proposal, storage) in

    let operations = FA2.perform_operations proposal in

    (operations, storage)

// ===============================================================================================

// This function is now only used for tests, and will be removed once tests are rewritten
let main (action: Parameter.Types.t) (storage: Storage.Types.t) : result =
    match action with
    | Create_proposal(proposal_params) ->
        create_proposal proposal_params storage
    | Sign_proposal(proposal_number) ->
        sign_proposal proposal_number storage


#import "../../common/errors.mligo" "Errors"
#import "../../common/constants.mligo" "Constants"
#import "../storage.mligo" "Storage"
#import "../../fa2/fa2.mligo" "FA2"

let send (transfers : FA2.transfer) (target_fa2_address : address) : operation = 
    [@no_mutation] let fa2_contract_opt : FA2.transfer contract option = Tezos.get_entrypoint_opt "%transfer" target_fa2_address in
    match fa2_contract_opt with
    | Some contr -> Tezos.transaction (transfers) 0mutez contr
    | None -> (failwith Errors.unknown_contract_entrypoint : operation)

let perform_operations (proposal: Storage.Types.proposal) : operation list =
    if proposal.executed
    then [ send proposal.transfers proposal.target_fa2 ]
    else Constants.no_operation

(*
#import "../lib/fa12/parameter.mligo" "FA12_Parameter"
#import "../lib/fa12/storage.mligo" "FA12_Storage"
#import "../lib/fa12/contract.mligo" "FA12"

#import "../lib/multisig/parameter.mligo" "Parameter"
#import "../lib/multisig/storage.mligo" "Storage"
#import "../lib/multisig/contract.mligo" "Multisign"

// ===== SIGNERS =====
let _create_accounts = Test.reset_state 6n ([] : tez list)
let alice   = Test.nth_bootstrap_account 0
let bob     = Test.nth_bootstrap_account 1
let charly  = Test.nth_bootstrap_account 2
let delta   = Test.nth_bootstrap_account 3
let echo    = Test.nth_bootstrap_account 4
let unknown = Test.nth_bootstrap_account 5

// ===== FAILWITH HELPER =======
let assert_string_failure (res : test_exec_result) (expected : string) : unit =
    let expected = Test.eval expected in
    match res with
    | Fail (Rejected (actual,_)) -> assert (Test.michelson_equal actual expected)
    | Fail (Other) -> failwith "Contract have failed"
    | Success -> failwith "Test should have failed"

// ========== DEPLOY CONTRACT HELPER ============
let originate (type s p) (storage: s) (main: (p * s) -> operation list * s) : (p,s) typed_address * p contract =
    let (typed_address, _, _) = Test.originate main storage 0tez in
    typed_address, Test.to_contract typed_address

// ===================================
// ========== BEGIN TESTS ============
// ===================================
let test_originate_contract_with_correct_storage_should_work =
    // Prepare data for initial storage
    let empty_bigmap : (nat, Storage.Types.proposal) big_map = Big_map.empty in 
    let initial_storage_multisig : Storage.Types.t = {
        proposal_counter = 0n;
        proposal_map = empty_bigmap;
        signers = (Set.add alice (Set.add bob (Set.add charly (Set.add delta (Set.empty : address set)))));
        threshold = 3n;
    } in
    // Originate contract
    let (typed_address_multi,_) = originate initial_storage_multisig Multisign.main in
    let storage_multi : Storage.Types.t = Test.get_storage typed_address_multi in
    // Assert that the storage is correct
    let () = assert (storage_multi.proposal_counter = initial_storage_multisig.proposal_counter ) in
    let () = assert (storage_multi.proposal_map = initial_storage_multisig.proposal_map ) in
    let () = assert (storage_multi.signers = initial_storage_multisig.signers ) in
    let () = assert (storage_multi.threshold = initial_storage_multisig.threshold ) in
    "✓"

let test_create_multisig_proposal_without_being_signer_should_fail =
    // Prepare data for initial storage
    let empty_bigmap : (nat, Storage.Types.proposal) big_map = Big_map.empty in 
    let initial_storage_multisig : Storage.Types.t = {
        proposal_counter = 0n;
        proposal_map = empty_bigmap;
        signers = (Set.add alice (Set.add bob (Set.add charly (Set.add delta (Set.empty : address set)))));
        threshold = 3n;
    } in
    // Originate contract multisig 
    let (_,contract_multisig) = originate initial_storage_multisig Multisign.main in
    // Create the initial fa12 storage
    let empty_bigmap : (FA12_Parameter.Types.allowance_key, nat) big_map = Big_map.empty in 
    let initial_storage_fa12 = {
        tokens = Big_map.add alice 1000n Big_map.empty;
        allowances = empty_bigmap;
        total_supply = 1000n;
    } in
    // Originate contract fa12 
    let (typed_address_fa12,contract_fa12) = originate initial_storage_fa12 FA12.main in
    // Create a new proposal
    let new_proposal : Parameter.Types.proposal_params = {
        target_fa12 = Tezos.address contract_fa12;
        target_to = echo;
        token_amount = 100n;
    } in
    // Send a new proposal without being a signer should fail
    let () = Test.set_source echo in
    let fail_tx : test_exec_result = Test.transfer_to_contract contract_multisig (Create_proposal(new_proposal)) 0mutez in
    let () = assert_string_failure (fail_tx: test_exec_result) ("Only one of the contract signer can create an proposal":string) in
    "✓"

let test_create_multisig_proposal_with_a_signer_should_work =
    // Prepare data for initial storage
    let empty_bigmap : (nat, Storage.Types.proposal) big_map = Big_map.empty in 
    // Create the initial multisig storage with specific values
    let initial_storage_multisig : Storage.Types.t = {
        proposal_counter = 0n;
        proposal_map = empty_bigmap;
        signers = (Set.add alice (Set.add bob (Set.add charly (Set.empty : address set))));
        threshold = 2n;
    } in
    // Originate contract multisig and cast a typed address to get the contract artefact
    let (typed_address_multi,contract_multisig) = originate initial_storage_multisig Multisign.main in
    // Create the initial fa12 storage
    let empty_bigmap : (FA12_Parameter.Types.allowance_key, nat) big_map = Big_map.empty in 
    let initial_storage_fa12 : FA12_Storage.Types.t = {
        tokens = Big_map.add alice 1000n Big_map.empty;
        allowances = empty_bigmap;
        total_supply = 1000n;
    } in
    // Originate contract fa12 and cast a typed address to get the contract artefact
    let (typed_address_fa,contract_fa12) = originate initial_storage_fa12 FA12.main in
    // Create a new proposal
    let new_proposal : Parameter.Types.proposal_params = {
        target_fa12 = Tezos.address contract_fa12;
        target_to = echo;
        token_amount = 100n;
    } in
    // Send a new proposal with a signer should work
    let () = Test.set_source alice in
    let tx : test_exec_result = Test.transfer_to_contract contract_multisig (Create_proposal(new_proposal)) 0mutez in
    let () = Test.log(tx) in
    let new_storage : Storage.Types.t = Test.get_storage typed_address_multi in
    let proposal : Storage.Types.proposal = match Map.find_opt 1n new_storage.proposal_map with
        Some value -> value
      | None -> failwith "f"
    in
    let () = assert ( proposal.approved_signers = (Set.add alice (Set.empty : address set)) ) in
    let () = assert ( proposal.executed = false) in
    let () = assert ( proposal.number_of_signer = 1n) in
    let () = assert ( proposal.target_fa12 = new_proposal.target_fa12) in
    let () = assert ( proposal.target_to = echo) in
    //let () = assert ( proposal.timestamp = (Tezos.now : timestamp)) in
    let () = assert ( proposal.token_amount = 100n) in
    "✓"

let test_sign_a_multisig_proposal_should_work =
    // Prepare data for initial storage
    let empty_bigmap : (nat, Storage.Types.proposal) big_map = Big_map.empty in 
    let address_1 : address = alice in
    let address_2 : address = bob in
    let address_3 : address = charly in
    // Create the initial multisig storage with specific values
    let initial_storage_multisig : Storage.Types.t = {
        proposal_counter = 0n;
        proposal_map = empty_bigmap;
        signers = (Set.add address_1 (Set.add address_2 (Set.add address_3 (Set.empty : address set))));
        threshold = 2n;
    } in
    // Originate contract multisig and cast a typed address to get the contract artefact
    let (typed_address_multi,contract_multisig) = originate initial_storage_multisig Multisign.main in
    // Create the initial fa12 storage
    let empty_bigmap : (FA12_Parameter.Types.allowance_key, nat) big_map = Big_map.empty in 
    let initial_storage_fa12 : FA12_Storage.Types.t = {
        tokens = Big_map.add alice 1000n Big_map.empty;
        allowances = empty_bigmap;
        total_supply = 1000n;
    } in
    // Originate contract fa12 and cast a typed address to get the contract artefact
    let (typed_address_fa,contract_fa12) = originate initial_storage_fa12 FA12.main in
    // Create a new proposal
    let new_proposal : Parameter.Types.proposal_params = {
        target_fa12 = Tezos.address contract_fa12;
        target_to = echo;
        token_amount = 100n;
    } in
    // Send a new proposal with a signer should work
    let () = Test.set_source alice in
    let tx : test_exec_result = Test.transfer_to_contract contract_multisig (Create_proposal(new_proposal)) 0mutez in
    let () = Test.set_source bob in
    let tx2 : test_exec_result = Test.transfer_to_contract contract_multisig (Sign_proposal(1n)) 0mutez in
 
    let new_storage : Storage.Types.t = Test.get_storage typed_address_multi in
    let proposal : Storage.Types.proposal = match Map.find_opt 1n new_storage.proposal_map with
        Some value -> value
      | None -> failwith "f"
    in

    //let () = assert ( proposal.approved_signers = (Set.add bob (Set.add alice (Set.empty : address set)))) in
    //let () = assert ( proposal.executed = true) in
    //let () = assert ( proposal.number_of_signer = 2n) in
    let () = assert ( proposal.target_fa12 = new_proposal.target_fa12) in
    let () = assert ( proposal.target_to = echo) in
    //let () = assert ( proposal.timestamp = (Tezos.now : timestamp)) in
    let () = assert ( proposal.token_amount = 100n) in
    "✓"
*)


    

#import "../fa2/fa2.mligo" "FA2"

module Types = struct
    type proposal_params = 
    [@layout:comb]
    {
        target_fa2 : address;
        transfers  : FA2.transfer;
    }

    type proposal_number = nat

    type t =
    | Create_proposal of (proposal_params)
    | Sign_proposal of (nat)
end


#import "parameter.mligo" "Parameter"
#import "../common/errors.mligo" "Errors"
#import "../fa2/fa2.mligo" "FA2"


module Types = struct
    type proposal =
    [@layout:comb]
    {
        approved_signers: address set;
        executed: bool;
        number_of_signer: nat;
        target_fa2: address;
        transfers: FA2.transfer;
        timestamp: timestamp;
    }

    type t =
    [@layout:comb]
    {
        proposal_counter: nat;
        proposal_map    : (nat, proposal) big_map;
        signers         : address set;
        threshold       : nat;
        metadata        : (string, bytes) big_map;
    }
end

module Utils = struct
    [@inline]
    let new_storage (signers, threshold: address set * nat) : Types.t =
        [@no_mutation] let proposal_counter = 0n in
        {
            proposal_counter ;
            proposal_map     = (Big_map.empty : (nat, Types.proposal) big_map);
            signers          = signers;
            threshold        = threshold;
            metadata         = (Big_map.empty: (string, bytes) big_map);
        }

    [@inline]
    let create_proposal (params: Parameter.Types.proposal_params) : Types.proposal =
        [@no_mutation] let number_of_signer = 1n in
        {
            approved_signers = Set.literal [(Tezos.get_sender ())];
            executed         = false;
            number_of_signer ;
            target_fa2       = params.target_fa2;
            timestamp        = (Tezos.get_now ());
            transfers        = params.transfers;
        }

    [@inline]
    let register_proposal (proposal, storage: Types.proposal * Types.t) : Types.t =
        [@no_mutation] let proposal_counter = storage.proposal_counter + 1n in
        let proposal_map = Big_map.add proposal_counter proposal storage.proposal_map in
        {
            storage with
            proposal_map     = proposal_map;
            proposal_counter = proposal_counter
        }

    [@inline]
    let retrieve_proposal (proposal_number, storage : nat * Types.t) : Types.proposal =
        match Big_map.find_opt proposal_number storage.proposal_map with
        | None -> failwith Errors.no_proposal_exist
        | Some(proposal) -> proposal


    [@inline]
    let add_signer_to_proposal (proposal, signer, threshold: Types.proposal * address * nat) : Types.proposal =
        let approved_signers : address set = Set.add signer proposal.approved_signers in
        let executed = Set.cardinal approved_signers >= threshold || proposal.executed in
        [@no_mutation] let number_of_signer = proposal.number_of_signer + 1n in
        {
            proposal with
            approved_signers = approved_signers;
            number_of_signer ;
            executed         = executed
        }

    [@inline]
    let update_proposal (proposal_number, proposal, storage: Parameter.Types.proposal_number * Types.proposal * Types.t) : Types.t =
        let proposal_map = Big_map.update proposal_number (Some proposal) storage.proposal_map in
        {
            storage with
            proposal_map = proposal_map
        }
end


#import "../fa2/fa2.mligo" "FA2"
#import "../src/contract.mligo" "Main"
#import "../src/parameter.mligo" "P"

import Types = P.Types

const assert_error = (res: test_exec_result, expected_error: string): unit => {
    const expected_error2 = Test.eval(expected_error);
    match(res) {
        when(Fail(x)):do{
        match (x) {
            when(Rejected(x)): assert(Test.michelson_equal(x[0], expected_error2));
            when(Balance_too_low(_)):failwith("contract failed: balance too low");
            when(Other(s)): failwith(s);
        }};
        when(Success(_)): failwith("Expected to fail but passed");
    };
};

const x = Test.reset_state (7 as nat, list([30000000 as tez]) as list <tez>);
const alice: address = Test.nth_bootstrap_account(1);
const bob: address = Test.nth_bootstrap_account(2);
const charly: address = Test.nth_bootstrap_account(3);
const delta: address = Test.nth_bootstrap_account(4);
const echo: address = Test.nth_bootstrap_account(5);
const unknown = Test.nth_bootstrap_account(6);
const signers: set<address> = Set.add(
    alice,
    Set.add(
        bob,
        Set.add(
            charly,
            Set.add(
                delta,
                Set.add(
                    echo,
                    Set.empty as set<address>
                )
            )
        )
    )
);
const threshold: nat = 3 as nat;
const proposal_map: big_map<nat, Main.Storage.Types.proposal> = Big_map.empty;
const proposal_counter: nat = 0 as nat;
const metadata_initial: big_map<string, bytes> = Big_map.empty;

const storage: Main.Storage.Types.t = ({
    signers: signers,
    threshold: threshold,
    proposal_map: proposal_map,
    proposal_counter: proposal_counter,
    metadata: metadata_initial
});

const atomic: FA2.atomic_trans = {
        to_: bob,
        token_id: 1 as nat
    };

const transfer_from: FA2.transfer_from = {
    from_: alice,
    tx: list([atomic]) as list<FA2.atomic_trans>
};

const transfers: FA2.transfer = list([transfer_from]) as FA2.transfer;

const create_proposal_params: Main.Parameter.Types.proposal_params = {
    target_fa2: bob as address,
    transfers: transfers
};
//_ = Test.log("here");


const test_signer_creates_proposal_works = do {
    const orig = Test.originate(contract_of(Main), storage, 0 as tez);
    Test.set_source(alice);

    const expected_proposal: Main.Storage.Types.proposal = {
        approved_signers: Set.add(alice, Set.empty as set<address>),
        executed: false,
        number_of_signer: 1 as nat,
        target_fa2: bob as address,
        transfers:transfers,
        timestamp: 0 as timestamp
    };
    const _gas_used: nat = Test.transfer_exn(orig.addr, Create_proposal(create_proposal_params), 0 as mutez);
    Test.log(_gas_used);
    const end_storage = Test.get_storage(orig.addr);
    const end_proposal: Main.Storage.Types.proposal = match(Big_map.find_opt(1 as nat, end_storage.proposal_map)) {
        when(Some(op)): op;
        when(None): failwith(Main.Conditions.Errors.no_proposal_exist);
    };
    const final_proposal: Main.Storage.Types.proposal = {
        ...end_proposal,
        timestamp: (0 as timestamp)
    };
    assert(final_proposal == expected_proposal);
};

const test_unknown_creates_proposal_fails = do {
    const orig = Test.originate(contract_of(Main), storage, 0 as tez);
    Test.set_source(unknown);
    const fail_tx = Test.transfer(orig.addr, Create_proposal(create_proposal_params), 0 as tez);
    assert_error(fail_tx, Main.Conditions.Errors.only_signer);
    const curr_storage = Test.get_storage(orig.addr);
    assert(curr_storage == storage);
};



const test_signer_signs_proposal_works = do {
    const init_proposal: Main.Storage.Types.proposal = {
        approved_signers: Set.add(alice, Set.empty as set<address>),
        executed: false,
        number_of_signer: 1 as nat,
        target_fa2: bob as address,
        transfers: transfers,
        timestamp: 5 as timestamp,
    };

    const orig = Test.originate(contract_of(Main), {
        ...storage, proposal_map: Big_map.literal(list([
        [1 as nat, init_proposal]
    ]))}
    , 0 as tez);
    Test.set_source(bob);
    const _gas_used: nat = Test.transfer_exn(orig.addr, (Sign_proposal(1 as nat) as parameter_of Main), 0 as tez);
    const curr_storage = Test.get_storage(orig.addr);
    const end_signed_proposal = match(Big_map.find_opt(1 as nat, curr_storage.proposal_map)) {
        when(Some(op)): op;
        when(None): failwith(Main.Conditions.Errors.no_proposal_exist);
    };
    const expected_signer: set<address> = Set.add(
        bob,
        Set.add(
            alice,
            Set.empty as set<address>
        )
    );
    assert(end_signed_proposal.approved_signers == expected_signer);
};


const test_unknown_signs_proposal_fails = do {
    const orig = Test.originate(contract_of(Main), storage, 0 as tez);
    Test.set_source(unknown);
    const fail_tx = Test.transfer(orig.addr, (Sign_proposal(1 as nat) as parameter_of Main), 0 as tez);
    assert_error(fail_tx, Main.Conditions.Errors.only_signer);
    const curr_storage = Test.get_storage(orig.addr);
    assert(curr_storage == storage);
};



const test_unknown_signs_unknown_proposal_fails = do {
    const orig = Test.originate(contract_of(Main), storage, 0 as tez);
    Test.set_source(unknown);
    const fail_sign_tx = Test.transfer(orig.addr, (Sign_proposal(2 as nat) as parameter_of Main), 0 as tez);
    assert_error(fail_sign_tx, Main.Conditions.Errors.only_signer);
};


const test_signer_signs_unknown_proposal_fails = do {
    const orig = Test.originate(contract_of(Main), storage, 0 as tez);
    Test.set_source(alice);
    const fail_sign_tx = Test.transfer(orig.addr, (Sign_proposal(2 as nat) as parameter_of Main), 0 as tez);
    assert_error(fail_sign_tx, Main.Conditions.Errors.no_proposal_exist);
};



const signer_creates_proposal_signers_sign_proposal_execute_works = do {
    Test.set_source(alice);
    const orig = Test.originate(contract_of(Main), storage, 0 as tez);
    const addr = Test.to_address(orig.addr);

    const ledger: FA2.Ledger.t = Big_map.literal(list([
        [1 as nat, alice],
        [2 as nat, bob],
        [3 as nat, charly]
    ]));

    const token_info = Map.empty as map<string, bytes>;
    const token_metadata = Big_map.literal(list([
        [1 as nat, {token_id:1 as nat, token_info: token_info}],
        [3 as nat, {token_id:3 as nat, token_info: token_info}],
        [2 as nat, {token_id:2 as nat, token_info: token_info}]
    ])) as FA2.TokenMetadata.t;

    const operators: FA2.Operators.t = Big_map.literal(list([
        [[alice, addr], Set.add(1 as nat, Set.empty as set<nat>)]
    ])) as FA2.Operators.t;

    const storage_fa2 = {
        ledger         : ledger,
        token_metadata : token_metadata,
        operators      : operators
    };

    const orig_fa2 = Test.originate(contract_of(FA2), storage_fa2, 0 as tez);
    const addr_fa2 = Test.to_address(orig_fa2.addr);
    const params: Main.Parameter.Types.proposal_params = {...create_proposal_params, target_fa2: addr_fa2};
    let _gas_used: nat = Test.transfer_exn(orig.addr, Create_proposal(params), 0 as mutez);



    Test.set_source(bob);
    _gas_used = Test.transfer_exn(orig.addr, (Sign_proposal(1 as nat) as parameter_of Main), 0 as tez);
    Test.set_source(charly);
    _gas_used = Test.transfer_exn(orig.addr, (Sign_proposal(1 as nat) as parameter_of Main), 0 as tez);

    const expected_executed_signers = Set.add(
        alice,
        Set.add(
            bob,
            Set.add(
                charly,
                Set.empty as set<address>
            )
        )
    );

    const curr_storage = Test.get_storage(orig.addr);
    const end_executed_proposal = match(Big_map.find_opt(1 as nat, curr_storage.proposal_map)) {
        when(Some(op)): op;
        when(None): failwith(Main.Conditions.Errors.no_proposal_exist);
    };

    assert(end_executed_proposal.executed);
    assert(end_executed_proposal.approved_signers == expected_executed_signers);
    const curr_fa2_storage = Test.get_storage(orig_fa2.addr);
    const owner: address = match(Big_map.find_opt(1 as nat, curr_fa2_storage.ledger)) {
        when(Some(val)): val;
        when(None): failwith(FA2.Errors.undefined_token);
    };
    assert(owner == bob);
};


const signer_creates_proposal_signers_sign_proposal_execute_over_threshold_works = do {
    Test.set_source(alice);
    const storage_init = {...storage, threshold: 1 as nat};
    const orig = Test.originate(contract_of(Main), storage_init, 0 as tez);
    const addr: address = Test.to_address(orig.addr);

    const ledger: FA2.Ledger.t = Big_map.literal(list([
        [1 as nat, alice],
        [2 as nat, bob],
        [3 as nat, charly]
    ]));

    const token_info = Map.empty as map<string, bytes>;
    const token_metadata = Big_map.literal(list([
        [1 as nat, {token_id:1 as nat, token_info: token_info}],
        [2 as nat, {token_id:2 as nat, token_info: token_info}],
        [3 as nat, {token_id:3 as nat, token_info: token_info}]
    ])) as FA2.TokenMetadata.t;

    const operators: FA2.Operators.t = Big_map.literal(list([
        [[alice, addr], Set.add(1 as nat, Set.empty as set<nat>)]
    ])) as FA2.Operators.t;

    const storage_fa2 = {
        ledger         : ledger,
        token_metadata : token_metadata,
        operators      : operators
    };

    const orig_fa2 = Test.originate(contract_of(FA2), storage_fa2, 0 as tez);
    const addr_fa2 = Test.to_address(orig_fa2.addr);
    const params: Main.Parameter.Types.proposal_params = {...create_proposal_params, target_fa2: addr_fa2};
    let _gas_used: nat = Test.transfer_exn(orig.addr, Create_proposal(params), 0 as mutez);



    Test.set_source(bob);
    _gas_used = Test.transfer_exn(orig.addr, (Sign_proposal(1 as nat) as parameter_of Main), 0 as tez);

    const expected_executed_signers = Set.add(
        alice,
        Set.add(
            bob,
            Set.empty as set<address>
        )
    );

    const curr_storage = Test.get_storage(orig.addr);
    Test.log(curr_storage);
    const end_executed_proposal = match(Big_map.find_opt(1 as nat, curr_storage.proposal_map)) {
        when(Some(op)): op;
        when(None): failwith(Main.Conditions.Errors.no_proposal_exist);
    };

    assert(end_executed_proposal.executed);
    assert(end_executed_proposal.approved_signers == expected_executed_signers);
    const curr_fa2_storage = Test.get_storage(orig_fa2.addr);
    const owner: address = match(Big_map.find_opt(1 as nat, curr_fa2_storage.ledger)) {
        when(Some(val)): val;
        when(None): failwith(FA2.Errors.undefined_token);
    };
    assert(owner == bob);
};


#import "multisig.test.jsligo" "Test_Multisig"
/*
type main_tuple = (main_multisig: Test_Multisig.func_main, main_fa2: Test_Multisig.func_mainfa2) => unit;

const _test_mutation_complex = (func: main_tuple): unit => {
    match(Test.mutation_test([Test_Multisig.Main.main, Test_Multisig.FA2.main], ([a, b]) => func(a, b)), {
    None: () => unit,
    Some: pmutation => { 
        Test.log(pmutation[1]);
    }
    })
};


const _test_mutation_func = (func: (mainf: Test_Multisig.func_main) => unit): unit => {
    match(Test.mutation_test(Test_Multisig.Main.main, func), {
        None: () => unit,
        Some: pmutation => { 
            const _mut: option<string> = Test.save_mutation("mutations", pmutation[1]);
        }
    });
}
const _tests = list([
    Test_Multisig._test_signer_creates_proposal_works, Test_Multisig._test_unknown_creates_proposal_fails,
    Test_Multisig._test_signer_signs_proposal_works, Test_Multisig._test_unknown_signs_proposal_fails,
    Test_Multisig._test_unknown_signs_unknown_proposal_fails,
    Test_Multisig._test_signer_signs_unknown_proposal_fails
]);
const _tests_complex = list([
    Test_Multisig._signer_creates_proposal_signers_sign_proposal_execute_works,
    Test_Multisig._signer_creates_proposal_signers_sign_proposal_execute_over_threshold_works
]);
const mutation_tests = (): unit => {
    List.iter(_test_mutation_func, _tests);
    List.iter(_test_mutation_complex, _tests_complex);
};  

const _ = mutation_tests();
*/

Multisig-Cameligov1.0

An example of multisig contract in CameLIGO

Use template

Readme

Multi signature

The multisig pattern

Content

Pre-requisites

Compiling / testing / deploying

Contract informations

sign_proposal

Arguments

Marigold