90 lines
4.5 KiB
Go
90 lines
4.5 KiB
Go
package transfer_test
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import (
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"testing"
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"github.com/stretchr/testify/suite"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/ibc-transfer/types"
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channeltypes "github.com/cosmos/cosmos-sdk/x/ibc/04-channel/types"
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ibctesting "github.com/cosmos/cosmos-sdk/x/ibc/testing"
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)
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type HandlerTestSuite struct {
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suite.Suite
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coordinator *ibctesting.Coordinator
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// testing chains used for convenience and readability
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chainA *ibctesting.TestChain
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chainB *ibctesting.TestChain
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}
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func (suite *HandlerTestSuite) SetupTest() {
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suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
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suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
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suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
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}
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// constructs a send from chainA to chainB on the established channel/connection
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// and sends the same coin back from chainB to chainA.
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func (suite *HandlerTestSuite) TestHandleMsgTransfer() {
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clientA, clientB, _, _, channelA, channelB := suite.coordinator.Setup(suite.chainA, suite.chainB)
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originalBalance := suite.chainA.App.BankKeeper.GetBalance(suite.chainA.GetContext(), suite.chainA.SenderAccount.GetAddress(), sdk.DefaultBondDenom)
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coinToSendToB := sdk.NewCoin(sdk.DefaultBondDenom, sdk.NewInt(100))
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// send from chainA to chainB
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msg := types.NewMsgTransfer(channelA.PortID, channelA.ID, coinToSendToB, suite.chainA.SenderAccount.GetAddress(), suite.chainB.SenderAccount.GetAddress().String(), 110, 0)
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err := suite.coordinator.SendMsg(suite.chainA, suite.chainB, clientB, msg)
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suite.Require().NoError(err) // message committed
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// relay send
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fungibleTokenPacket := types.NewFungibleTokenPacketData(coinToSendToB.Denom, coinToSendToB.Amount.Uint64(), suite.chainA.SenderAccount.GetAddress().String(), suite.chainB.SenderAccount.GetAddress().String())
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packet := channeltypes.NewPacket(fungibleTokenPacket.GetBytes(), 1, channelA.PortID, channelA.ID, channelB.PortID, channelB.ID, 110, 0)
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ack := types.FungibleTokenPacketAcknowledgement{Success: true}
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err = suite.coordinator.RelayPacket(suite.chainA, suite.chainB, clientA, clientB, packet, ack.GetBytes())
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suite.Require().NoError(err) // relay committed
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// check that voucher exists on chain B
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voucherDenomTrace := types.ParseDenomTrace(types.GetPrefixedDenom(packet.GetDestPort(), packet.GetDestChannel(), sdk.DefaultBondDenom))
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balance := suite.chainB.App.BankKeeper.GetBalance(suite.chainB.GetContext(), suite.chainB.SenderAccount.GetAddress(), voucherDenomTrace.IBCDenom())
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coinToSendBackToA := types.GetTransferCoin(channelB.PortID, channelB.ID, sdk.DefaultBondDenom, 100)
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suite.Require().Equal(coinToSendBackToA, balance)
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// send from chainB back to chainA
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msg = types.NewMsgTransfer(channelB.PortID, channelB.ID, coinToSendBackToA, suite.chainB.SenderAccount.GetAddress(), suite.chainA.SenderAccount.GetAddress().String(), 110, 0)
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err = suite.coordinator.SendMsg(suite.chainB, suite.chainA, clientA, msg)
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suite.Require().NoError(err) // message committed
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// relay send
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// NOTE: fungible token is prefixed with the full trace in order to verify the packet commitment
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voucherDenom := voucherDenomTrace.GetPrefix() + voucherDenomTrace.BaseDenom
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fungibleTokenPacket = types.NewFungibleTokenPacketData(voucherDenom, coinToSendBackToA.Amount.Uint64(), suite.chainB.SenderAccount.GetAddress().String(), suite.chainA.SenderAccount.GetAddress().String())
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packet = channeltypes.NewPacket(fungibleTokenPacket.GetBytes(), 1, channelB.PortID, channelB.ID, channelA.PortID, channelA.ID, 110, 0)
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err = suite.coordinator.RelayPacket(suite.chainB, suite.chainA, clientB, clientA, packet, ack.GetBytes())
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suite.Require().NoError(err) // relay committed
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balance = suite.chainA.App.BankKeeper.GetBalance(suite.chainA.GetContext(), suite.chainA.SenderAccount.GetAddress(), sdk.DefaultBondDenom)
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// check that the balance on chainA returned back to the original state
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suite.Require().Equal(originalBalance, balance)
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// check that module account escrow address is empty
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escrowAddress := types.GetEscrowAddress(packet.GetDestPort(), packet.GetDestChannel())
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balance = suite.chainA.App.BankKeeper.GetBalance(suite.chainA.GetContext(), escrowAddress, sdk.DefaultBondDenom)
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suite.Require().Equal(sdk.NewCoin(sdk.DefaultBondDenom, sdk.ZeroInt()), balance)
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// check that balance on chain B is empty
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balance = suite.chainB.App.BankKeeper.GetBalance(suite.chainB.GetContext(), suite.chainB.SenderAccount.GetAddress(), voucherDenomTrace.IBCDenom())
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suite.Require().Zero(balance.Amount.Int64())
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}
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func TestHandlerTestSuite(t *testing.T) {
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suite.Run(t, new(HandlerTestSuite))
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}
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