fix(group)!: Fix group min execution period (cosmos#13876)

* fix: don't check MinExecutionPeriod in `Allow`

* Check MinExecutionPeriod on doExecuteMsgs

* Fix TestExec

* Fix TestExec

* test exec pruned

* Fix submitproposal

* Add changelog

* typo

* revert some changes

* add minExecutionPeriod

* Add docs and specs

Author: amaury1093

CHANGELOG.md

@@ -114,6 +114,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (x/gov) [#12771](https://github.com/cosmos/cosmos-sdk/pull/12771) Initial deposit requirement for proposals at submission time.
 * (x/staking) [#12967](https://github.com/cosmos/cosmos-sdk/pull/12967) `unbond` now creates only one unbonding delegation entry when multiple unbondings exist at a single height (e.g. through multiple messages in a transaction).
 * (x/auth/vesting) [#13502](https://github.com/cosmos/cosmos-sdk/pull/13502) Add Amino Msg registration for `MsgCreatePeriodicVestingAccount`.
+* (x/group) [#13876](https://github.com/cosmos/cosmos-sdk/pull/13876) Fix group MinExecutionPeriod that is checked on execution now, instead of voting period end.
 
 ### API Breaking Changes
 
@@ -168,6 +169,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * [#13794](https://github.com/cosmos/cosmos-sdk/pull/13794) Most methods on `types/module.AppModule` have been moved to 
 extension interfaces. `module.Manager.Modules` is now of type `map[string]interface{}` to support in parallel the new 
 `cosmossdk.io/core/appmodule.AppModule` API.
+* (x/group) [#13876](https://github.com/cosmos/cosmos-sdk/pull/13876) Add `GetMinExecutionPeriod` method on DecisionPolicy interface.
 
 ### CLI Breaking Changes
 

x/group/README.md

@@ -109,6 +109,16 @@ A threshold decision policy defines a threshold of yes votes (based on a tally
 of voter weights) that must be achieved in order for a proposal to pass. For
 this decision policy, abstain and veto are simply treated as no's.
 
+This decision policy also has a VotingPeriod window and a MinExecutionPeriod
+window. The former defines the duration after proposal submission where members
+are allowed to vote, after which tallying is performed. The latter specifies
+the minimum duration after proposal submission where the proposal can be
+executed. If set to 0, then the proposal is allowed to be executed immediately
+on submission (using the `TRY_EXEC` option). Obviously, MinExecutionPeriod
+cannot be greater than VotingPeriod+MaxExecutionPeriod (where MaxExecution is
+the app-defined duration that specifies the window after voting ended where a
+proposal can be executed).
+
 #### Percentage decision policy
 
 A percentage decision policy is similar to a threshold decision policy, except
@@ -117,6 +127,9 @@ It's more suited for groups where the group members' weights can be updated, as
 the percentage threshold stays the same, and doesn't depend on how those member
 weights get updated.
 
+Same as the Threshold decision policy, the percentage decision policy has the
+two VotingPeriod and MinExecutionPeriod parameters.
+
 ### Proposal
 
 Any member(s) of a group can submit a proposal for a group policy account to decide upon.

x/group/keeper/keeper_test.go

@@ -33,6 +33,8 @@ import (
 	minttypes "github.com/cosmos/cosmos-sdk/x/mint/types"
 )
 
+const minExecutionPeriod = 5 * time.Second
+
 type TestSuite struct {
 	suite.Suite
 
@@ -98,7 +100,7 @@ func (s *TestSuite) SetupTest() {
 	policy := group.NewThresholdDecisionPolicy(
 		"2",
 		time.Second,
-		0,
+		minExecutionPeriod, // Must wait 5 seconds before executing proposal
 	)
 	policyReq := &group.MsgCreateGroupPolicy{
 		Admin:   s.addrs[0].String(),
@@ -1551,36 +1553,48 @@ func (s *TestSuite) TestGroupPoliciesByAdminOrGroup() {
 func (s *TestSuite) TestSubmitProposal() {
 	addrs := s.addrs
 	addr1 := addrs[0]
-	addr2 := addrs[1]
+	addr2 := addrs[1] // Has weight 2
 	addr4 := addrs[3]
-	addr5 := addrs[4]
+	addr5 := addrs[4] // Has weight 1
 
 	myGroupID := s.groupID
 	accountAddr := s.groupPolicyAddr
 
-	msgSend := &banktypes.MsgSend{
-		FromAddress: s.groupPolicyAddr.String(),
-		ToAddress:   addr2.String(),
-		Amount:      sdk.Coins{sdk.NewInt64Coin("test", 100)},
-	}
-
+	// Create a new group policy to test TRY_EXEC
 	policyReq := &group.MsgCreateGroupPolicy{
 		Admin:   addr1.String(),
 		GroupId: myGroupID,
 	}
-	policy := group.NewThresholdDecisionPolicy(
-		"100",
+	noMinExecPeriodPolicy := group.NewThresholdDecisionPolicy(
+		"2",
 		time.Second,
-		0,
+		0, // no MinExecutionPeriod to test TRY_EXEC
 	)
-	err := policyReq.SetDecisionPolicy(policy)
+	err := policyReq.SetDecisionPolicy(noMinExecPeriodPolicy)
 	s.Require().NoError(err)
+	s.setNextAccount()
+	res, err := s.groupKeeper.CreateGroupPolicy(s.ctx, policyReq)
+	s.Require().NoError(err)
+	noMinExecPeriodPolicyAddr := sdk.MustAccAddressFromBech32(res.Address)
 
+	// Create a new group policy with super high threshold
+	bigThresholdPolicy := group.NewThresholdDecisionPolicy(
+		"100",
+		time.Second,
+		minExecutionPeriod,
+	)
 	s.setNextAccount()
+	err = policyReq.SetDecisionPolicy(bigThresholdPolicy)
+	s.Require().NoError(err)
 	bigThresholdRes, err := s.groupKeeper.CreateGroupPolicy(s.ctx, policyReq)
 	s.Require().NoError(err)
 	bigThresholdAddr := bigThresholdRes.Address
 
+	msgSend := &banktypes.MsgSend{
+		FromAddress: noMinExecPeriodPolicyAddr.String(),
+		ToAddress:   addr2.String(),
+		Amount:      sdk.Coins{sdk.NewInt64Coin("test", 100)},
+	}
 	defaultProposal := group.Proposal{
 		GroupPolicyAddress: accountAddr.String(),
 		Status:             group.PROPOSAL_STATUS_SUBMITTED,
@@ -1699,13 +1713,13 @@ func (s *TestSuite) TestSubmitProposal() {
 				}
 			},
 			req: &group.MsgSubmitProposal{
-				GroupPolicyAddress: accountAddr.String(),
+				GroupPolicyAddress: noMinExecPeriodPolicyAddr.String(),
 				Proposers:          []string{addr2.String()},
 				Exec:               group.Exec_EXEC_TRY,
 			},
 			msgs: []sdk.Msg{msgSend},
 			expProposal: group.Proposal{
-				GroupPolicyAddress: accountAddr.String(),
+				GroupPolicyAddress: noMinExecPeriodPolicyAddr.String(),
 				Status:             group.PROPOSAL_STATUS_ACCEPTED,
 				FinalTallyResult: group.TallyResult{
 					YesCount:        "2",
@@ -1716,24 +1730,24 @@ func (s *TestSuite) TestSubmitProposal() {
 				ExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_SUCCESS,
 			},
 			postRun: func(sdkCtx sdk.Context) {
-				s.bankKeeper.EXPECT().GetAllBalances(sdkCtx, accountAddr).Return(sdk.NewCoins(sdk.NewInt64Coin("test", 9900)))
+				s.bankKeeper.EXPECT().GetAllBalances(sdkCtx, noMinExecPeriodPolicyAddr).Return(sdk.NewCoins(sdk.NewInt64Coin("test", 9900)))
 				s.bankKeeper.EXPECT().GetAllBalances(sdkCtx, addr2).Return(sdk.NewCoins(sdk.NewInt64Coin("test", 100)))
 
-				fromBalances := s.bankKeeper.GetAllBalances(sdkCtx, accountAddr)
+				fromBalances := s.bankKeeper.GetAllBalances(sdkCtx, noMinExecPeriodPolicyAddr)
 				s.Require().Contains(fromBalances, sdk.NewInt64Coin("test", 9900))
 				toBalances := s.bankKeeper.GetAllBalances(sdkCtx, addr2)
 				s.Require().Contains(toBalances, sdk.NewInt64Coin("test", 100))
 			},
 		},
 		"with try exec, not enough yes votes for proposal to pass": {
 			req: &group.MsgSubmitProposal{
-				GroupPolicyAddress: accountAddr.String(),
+				GroupPolicyAddress: noMinExecPeriodPolicyAddr.String(),
 				Proposers:          []string{addr5.String()},
 				Exec:               group.Exec_EXEC_TRY,
 			},
 			msgs: []sdk.Msg{msgSend},
 			expProposal: group.Proposal{
-				GroupPolicyAddress: accountAddr.String(),
+				GroupPolicyAddress: noMinExecPeriodPolicyAddr.String(),
 				Status:             group.PROPOSAL_STATUS_SUBMITTED,
 				FinalTallyResult: group.TallyResult{
 					YesCount:        "0", // Since tally doesn't pass Allow(), we consider the proposal not final
@@ -2399,6 +2413,7 @@ func (s *TestSuite) TestExecProposal() {
 				msgs := []sdk.Msg{msgSend1}
 				return submitProposalAndVote(ctx, s, msgs, proposers, group.VOTE_OPTION_YES)
 			},
+			srcBlockTime:      s.blockTime.Add(minExecutionPeriod), // After min execution period end
 			expProposalStatus: group.PROPOSAL_STATUS_ACCEPTED,
 			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_SUCCESS,
 			expBalance:        true,
@@ -2412,6 +2427,7 @@ func (s *TestSuite) TestExecProposal() {
 
 				return submitProposalAndVote(ctx, s, msgs, proposers, group.VOTE_OPTION_YES)
 			},
+			srcBlockTime:      s.blockTime.Add(minExecutionPeriod), // After min execution period end
 			expProposalStatus: group.PROPOSAL_STATUS_ACCEPTED,
 			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_SUCCESS,
 			expBalance:        true,
@@ -2423,6 +2439,7 @@ func (s *TestSuite) TestExecProposal() {
 				msgs := []sdk.Msg{msgSend1}
 				return submitProposalAndVote(ctx, s, msgs, proposers, group.VOTE_OPTION_NO)
 			},
+			srcBlockTime:      s.blockTime.Add(minExecutionPeriod), // After min execution period end
 			expProposalStatus: group.PROPOSAL_STATUS_REJECTED,
 			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_NOT_RUN,
 		},
@@ -2439,34 +2456,59 @@ func (s *TestSuite) TestExecProposal() {
 			},
 			expErr: true,
 		},
-		"Decision policy also applied on timeout": {
+		"Decision policy also applied on exactly voting period end": {
 			setupProposal: func(ctx context.Context) uint64 {
 				msgs := []sdk.Msg{msgSend1}
 				return submitProposalAndVote(ctx, s, msgs, proposers, group.VOTE_OPTION_NO)
 			},
-			srcBlockTime:      s.blockTime.Add(time.Second),
+			srcBlockTime:      s.blockTime.Add(time.Second), // Voting period is 1s
 			expProposalStatus: group.PROPOSAL_STATUS_REJECTED,
 			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_NOT_RUN,
 		},
-		"Decision policy also applied after timeout": {
+		"Decision policy also applied after voting period end": {
 			setupProposal: func(ctx context.Context) uint64 {
 				msgs := []sdk.Msg{msgSend1}
 				return submitProposalAndVote(ctx, s, msgs, proposers, group.VOTE_OPTION_NO)
 			},
-			srcBlockTime:      s.blockTime.Add(time.Second).Add(time.Millisecond),
+			srcBlockTime:      s.blockTime.Add(time.Second).Add(time.Millisecond), // Voting period is 1s
 			expProposalStatus: group.PROPOSAL_STATUS_REJECTED,
 			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_NOT_RUN,
 		},
+		"exec proposal before MinExecutionPeriod should fail": {
+			setupProposal: func(ctx context.Context) uint64 {
+				msgs := []sdk.Msg{msgSend1}
+				return submitProposalAndVote(ctx, s, msgs, proposers, group.VOTE_OPTION_YES)
+			},
+			srcBlockTime:      s.blockTime.Add(4 * time.Second), // min execution date is 5s later after s.blockTime
+			expProposalStatus: group.PROPOSAL_STATUS_ACCEPTED,
+			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_FAILURE, // Because MinExecutionPeriod has not passed
+		},
+		"exec proposal at exactly MinExecutionPeriod should pass": {
+			setupProposal: func(ctx context.Context) uint64 {
+				msgs := []sdk.Msg{msgSend1}
+				s.bankKeeper.EXPECT().Send(gomock.Any(), msgSend1).Return(nil, nil)
+				return submitProposalAndVote(ctx, s, msgs, proposers, group.VOTE_OPTION_YES)
+			},
+			srcBlockTime:      s.blockTime.Add(5 * time.Second), // min execution date is 5s later after s.blockTime
+			expProposalStatus: group.PROPOSAL_STATUS_ACCEPTED,
+			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_SUCCESS,
+		},
 		"prevent double execution when successful": {
 			setupProposal: func(ctx context.Context) uint64 {
 				myProposalID := submitProposalAndVote(ctx, s, []sdk.Msg{msgSend1}, proposers, group.VOTE_OPTION_YES)
 				s.bankKeeper.EXPECT().Send(gomock.Any(), msgSend1).Return(nil, nil)
 
+				// Wait after min execution period end before Exec
+				sdkCtx := sdk.UnwrapSDKContext(ctx)
+				sdkCtx = sdkCtx.WithBlockTime(sdkCtx.BlockTime().Add(minExecutionPeriod)) // MinExecutionPeriod is 5s
+				ctx = sdk.WrapSDKContext(sdkCtx)
+
 				_, err := s.groupKeeper.Exec(ctx, &group.MsgExec{Executor: addr1.String(), ProposalId: myProposalID})
 				s.Require().NoError(err)
 				return myProposalID
 			},
-			expErr:            true, // since proposal is pruned after a successful MsgExec
+			srcBlockTime:      s.blockTime.Add(minExecutionPeriod), // After min execution period end
+			expErr:            true,                                // since proposal is pruned after a successful MsgExec
 			expProposalStatus: group.PROPOSAL_STATUS_ACCEPTED,
 			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_SUCCESS,
 			expBalance:        true,
@@ -2481,6 +2523,7 @@ func (s *TestSuite) TestExecProposal() {
 
 				return submitProposalAndVote(ctx, s, msgs, proposers, group.VOTE_OPTION_YES)
 			},
+			srcBlockTime:      s.blockTime.Add(minExecutionPeriod), // After min execution period end
 			expProposalStatus: group.PROPOSAL_STATUS_ACCEPTED,
 			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_FAILURE,
 		},
@@ -2489,6 +2532,11 @@ func (s *TestSuite) TestExecProposal() {
 				msgs := []sdk.Msg{msgSend2}
 				myProposalID := submitProposalAndVote(ctx, s, msgs, proposers, group.VOTE_OPTION_YES)
 
+				// Wait after min execution period end before Exec
+				sdkCtx := sdk.UnwrapSDKContext(ctx)
+				sdkCtx = sdkCtx.WithBlockTime(sdkCtx.BlockTime().Add(minExecutionPeriod)) // MinExecutionPeriod is 5s
+				ctx = sdk.WrapSDKContext(sdkCtx)
+
 				s.bankKeeper.EXPECT().Send(gomock.Any(), msgSend2).Return(nil, fmt.Errorf("error"))
 				_, err := s.groupKeeper.Exec(ctx, &group.MsgExec{Executor: addr1.String(), ProposalId: myProposalID})
 				s.bankKeeper.EXPECT().Send(gomock.Any(), msgSend2).Return(nil, nil)
@@ -2498,6 +2546,7 @@ func (s *TestSuite) TestExecProposal() {
 
 				return myProposalID
 			},
+			srcBlockTime:      s.blockTime.Add(minExecutionPeriod), // After min execution period end
 			expProposalStatus: group.PROPOSAL_STATUS_ACCEPTED,
 			expExecutorResult: group.PROPOSAL_EXECUTOR_RESULT_SUCCESS,
 		},
@@ -2689,6 +2738,11 @@ func (s *TestSuite) TestExecPrunedProposalsAndVotes() {
 
 				s.bankKeeper.EXPECT().Send(gomock.Any(), msgSend2).Return(nil, fmt.Errorf("error"))
 
+				// Wait for min execution period end
+				sdkCtx := sdk.UnwrapSDKContext(ctx)
+				sdkCtx = sdkCtx.WithBlockTime(sdkCtx.BlockTime().Add(minExecutionPeriod))
+				ctx = sdk.WrapSDKContext(sdkCtx)
+
 				_, err := s.groupKeeper.Exec(ctx, &group.MsgExec{Executor: addr1.String(), ProposalId: myProposalID})
 				s.bankKeeper.EXPECT().Send(gomock.Any(), msgSend2).Return(nil, nil)
 
@@ -2710,6 +2764,8 @@ func (s *TestSuite) TestExecPrunedProposalsAndVotes() {
 				sdkCtx = sdkCtx.WithBlockTime(spec.srcBlockTime)
 			}
 
+			// Wait for min execution period end
+			sdkCtx = sdkCtx.WithBlockTime(sdkCtx.BlockTime().Add(minExecutionPeriod))
 			ctx = sdk.WrapSDKContext(sdkCtx)
 			_, err := s.groupKeeper.Exec(ctx, &group.MsgExec{Executor: addr1.String(), ProposalId: proposalID})
 			if spec.expErr {
@@ -3173,3 +3229,59 @@ func (s *TestSuite) createGroupAndGroupPolicy(
 
 	return policyAddr, groupID
 }
+
+func (s *TestSuite) TestTallyProposalsAtVPEnd() {
+	addrs := s.addrs
+	addr1 := addrs[0]
+	addr2 := addrs[1]
+	votingPeriod := time.Duration(4 * time.Minute)
+	minExecutionPeriod := votingPeriod + group.DefaultConfig().MaxExecutionPeriod
+
+	groupMsg := &group.MsgCreateGroupWithPolicy{
+		Admin: addr1.String(),
+		Members: []group.MemberRequest{
+			{Address: addr1.String(), Weight: "1"},
+			{Address: addr2.String(), Weight: "1"},
+		},
+	}
+	policy := group.NewThresholdDecisionPolicy(
+		"1",
+		votingPeriod,
+		minExecutionPeriod,
+	)
+	s.Require().NoError(groupMsg.SetDecisionPolicy(policy))
+
+	s.setNextAccount()
+	groupRes, err := s.groupKeeper.CreateGroupWithPolicy(s.ctx, groupMsg)
+	s.Require().NoError(err)
+	accountAddr := groupRes.GetGroupPolicyAddress()
+	groupPolicy, err := sdk.AccAddressFromBech32(accountAddr)
+	s.Require().NoError(err)
+	s.Require().NotNil(groupPolicy)
+
+	proposalRes, err := s.groupKeeper.SubmitProposal(s.ctx, &group.MsgSubmitProposal{
+		GroupPolicyAddress: accountAddr,
+		Proposers:          []string{addr1.String()},
+		Messages:           nil,
+	})
+	s.Require().NoError(err)
+
+	_, err = s.groupKeeper.Vote(s.ctx, &group.MsgVote{
+		ProposalId: proposalRes.ProposalId,
+		Voter:      addr1.String(),
+		Option:     group.VOTE_OPTION_YES,
+	})
+	s.Require().NoError(err)
+
+	// move forward in time
+	ctx := s.sdkCtx.WithBlockTime(s.sdkCtx.BlockTime().Add(votingPeriod + 1))
+
+	result, err := s.groupKeeper.TallyResult(ctx, &group.QueryTallyResultRequest{
+		ProposalId: proposalRes.ProposalId,
+	})
+	s.Require().Equal("1", result.Tally.YesCount)
+	s.Require().NoError(err)
+
+	s.Require().NoError(s.groupKeeper.TallyProposalsAtVPEnd(ctx))
+	s.NotPanics(func() { module.EndBlocker(ctx, s.groupKeeper) })
+}

x/group/keeper/msg_server.go

@@ -685,8 +685,7 @@ func (k Keeper) doTallyAndUpdate(ctx sdk.Context, p *group.Proposal, electorate
 		return err
 	}
 
-	sinceSubmission := ctx.BlockTime().Sub(p.SubmitTime) // duration passed since proposal submission.
-	result, err := policy.Allow(tallyResult, electorate.TotalWeight, sinceSubmission)
+	result, err := policy.Allow(tallyResult, electorate.TotalWeight)
 	if err != nil {
 		return sdkerrors.Wrap(err, "policy allow")
 	}
@@ -752,7 +751,8 @@ func (k Keeper) Exec(goCtx context.Context, req *group.MsgExec) (*group.MsgExecR
 			return nil, err
 		}
 
-		if results, err := k.doExecuteMsgs(cacheCtx, k.router, proposal, addr); err != nil {
+		decisionPolicy := policyInfo.DecisionPolicy.GetCachedValue().(group.DecisionPolicy)
+		if results, err := k.doExecuteMsgs(cacheCtx, k.router, proposal, addr, decisionPolicy); err != nil {
 			proposal.ExecutorResult = group.PROPOSAL_EXECUTOR_RESULT_FAILURE
 			logs = fmt.Sprintf("proposal execution failed on proposal %d, because of error %s", id, err.Error())
 			k.Logger(ctx).Info("proposal execution failed", "cause", err, "proposalID", id)

x/group/keeper/proposal_executor.go

@@ -12,7 +12,13 @@ import (
 
 // doExecuteMsgs routes the messages to the registered handlers. Messages are limited to those that require no authZ or
 // by the account of group policy only. Otherwise this gives access to other peoples accounts as the sdk middlewares are bypassed
-func (s Keeper) doExecuteMsgs(ctx sdk.Context, router *baseapp.MsgServiceRouter, proposal group.Proposal, groupPolicyAcc sdk.AccAddress) ([]sdk.Result, error) {
+func (s Keeper) doExecuteMsgs(ctx sdk.Context, router *baseapp.MsgServiceRouter, proposal group.Proposal, groupPolicyAcc sdk.AccAddress, decisionPolicy group.DecisionPolicy) ([]sdk.Result, error) {
+	// Ensure it's not too early to execute the messages.
+	minExecutionDate := proposal.SubmitTime.Add(decisionPolicy.GetMinExecutionPeriod())
+	if ctx.BlockTime().Before(minExecutionDate) {
+		return nil, errors.ErrInvalid.Wrapf("must wait until %s to execute proposal %d", minExecutionDate, proposal.Id)
+	}
+
 	// Ensure it's not too late to execute the messages.
 	// After https://github.com/cosmos/cosmos-sdk/issues/11245, proposals should
 	// be pruned automatically, so this function should not even be called, as