code.vegaprotocol.io/vega@v0.79.0/core/statevar/snapshot_test.go (about)

     1  // Copyright (C) 2023 Gobalsky Labs Limited
     2  //
     3  // This program is free software: you can redistribute it and/or modify
     4  // it under the terms of the GNU Affero General Public License as
     5  // published by the Free Software Foundation, either version 3 of the
     6  // License, or (at your option) any later version.
     7  //
     8  // This program is distributed in the hope that it will be useful,
     9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    11  // GNU Affero General Public License for more details.
    12  //
    13  // You should have received a copy of the GNU Affero General Public License
    14  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    15  
    16  package statevar_test
    17  
    18  import (
    19  	"bytes"
    20  	"context"
    21  	"testing"
    22  
    23  	gtypes "code.vegaprotocol.io/vega/core/types"
    24  	types "code.vegaprotocol.io/vega/core/types/statevar"
    25  	"code.vegaprotocol.io/vega/libs/proto"
    26  	snapshotpb "code.vegaprotocol.io/vega/protos/vega/snapshot/v1"
    27  
    28  	"github.com/stretchr/testify/require"
    29  )
    30  
    31  func TestSnapshot(t *testing.T) {
    32  	engine1 := getTestEngine(t, now).engine
    33  	engine1.RegisterStateVariable("asset1", "market1", "var1", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    34  	engine1.RegisterStateVariable("asset1", "market1", "var2", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    35  	engine1.RegisterStateVariable("asset1", "market2", "var1", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    36  	engine1.RegisterStateVariable("asset1", "market2", "var2", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    37  	engine1.RegisterStateVariable("asset2", "market1", "var1", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    38  	engine1.RegisterStateVariable("asset2", "market1", "var1", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    39  
    40  	engine1.ReadyForTimeTrigger("asset1", "market1")
    41  	engine1.ReadyForTimeTrigger("asset1", "market2")
    42  
    43  	key := (&gtypes.PayloadFloatingPointConsensus{}).Key()
    44  	state1, _, err := engine1.GetState(key)
    45  	require.NoError(t, err)
    46  
    47  	engine2 := getTestEngine(t, now).engine
    48  	engine2.RegisterStateVariable("asset1", "market1", "var1", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    49  	engine2.RegisterStateVariable("asset1", "market1", "var2", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    50  	engine2.RegisterStateVariable("asset1", "market2", "var1", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    51  	engine2.RegisterStateVariable("asset1", "market2", "var2", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    52  	engine2.RegisterStateVariable("asset2", "market1", "var1", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    53  	engine2.RegisterStateVariable("asset2", "market1", "var1", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    54  
    55  	pl := snapshotpb.Payload{}
    56  	require.NoError(t, proto.Unmarshal(state1, &pl))
    57  	engine2.LoadState(context.Background(), gtypes.PayloadFromProto(&pl))
    58  
    59  	state2, _, err := engine2.GetState(key)
    60  	require.NoError(t, err)
    61  	require.True(t, bytes.Equal(state1, state2))
    62  }
    63  
    64  func TestSnapshotChangeFlagSet(t *testing.T) {
    65  	key := (&gtypes.PayloadFloatingPointConsensus{}).Key()
    66  	engine1 := getTestEngine(t, now).engine
    67  
    68  	engine1.RegisterStateVariable("asset1", "market1", "var1", converter{}, defaultStartCalc(), []types.EventType{types.EventTypeMarketEnactment, types.EventTypeTimeTrigger}, defaultResultBack())
    69  
    70  	state1, _, err := engine1.GetState(key)
    71  	require.NoError(t, err)
    72  
    73  	// this should hit the change flag causing us to reserialise at the next hash
    74  	engine1.ReadyForTimeTrigger("asset1", "market1")
    75  
    76  	state2, _, err := engine1.GetState(key)
    77  	require.NoError(t, err)
    78  	require.False(t, bytes.Equal(state1, state2))
    79  }