-
Notifications
You must be signed in to change notification settings - Fork 119
/
testhelpers.go
67 lines (62 loc) · 2.44 KB
/
testhelpers.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
package testhelpers
import (
"context"
"fmt"
"strings"
sdk "github.com/cosmos/cosmos-sdk/types"
sdktransferkeeper "github.com/cosmos/ibc-go/v4/modules/apps/transfer/keeper"
sdktransfertypes "github.com/cosmos/ibc-go/v4/modules/apps/transfer/types"
)
// Can be passed to sctransferkeeper.MsgServer as the SDK stub,
// so that sctransferkeeper.MsgServer can be used in other tests as well.
type MsgServerStub struct {
transferKeeper sdktransferkeeper.Keeper
bankKeeper sdktransfertypes.BankKeeper
}
func (srv *MsgServerStub) Transfer(ctx context.Context, msg *sdktransfertypes.MsgTransfer) (*sdktransfertypes.MsgTransferResponse, error) {
sender, err := sdk.AccAddressFromBech32(msg.Sender)
if err != nil {
return nil, err
}
_, err = SendStub(sdk.UnwrapSDKContext(ctx), srv.transferKeeper, srv.bankKeeper, msg.Token, sender, msg.SourcePort, msg.SourceChannel)
if err != nil {
return nil, err
}
return &sdktransfertypes.MsgTransferResponse{}, nil
}
func SendStub(ctx sdk.Context, transferKeeper sdktransferkeeper.Keeper, bankKeeper sdktransfertypes.BankKeeper, token sdk.Coin, sender sdk.AccAddress, sourcePort, sourceChannel string) (string, error) {
// deconstruct the token denomination into the denomination trace info
// to determine if the sender is the source chain
fullDenomPath := token.Denom
var err error
if strings.HasPrefix(token.Denom, "ibc/") {
fullDenomPath, err = transferKeeper.DenomPathFromHash(ctx, token.Denom)
if err != nil {
return "", err
}
}
if sdktransfertypes.SenderChainIsSource(sourcePort, sourceChannel, fullDenomPath) {
// create the escrow address for the tokens
escrowAddress := sdktransfertypes.GetEscrowAddress(sourcePort, sourceChannel)
// escrow source tokens. It fails if balance insufficient.
if err := bankKeeper.SendCoins(
ctx, sender, escrowAddress, sdk.NewCoins(token),
); err != nil {
return "", err
}
} else {
// transfer the coins to the module account and burn them
if err := bankKeeper.SendCoinsFromAccountToModule(
ctx, sender, sdktransfertypes.ModuleName, sdk.NewCoins(token),
); err != nil {
return "", err
}
if err := bankKeeper.BurnCoins(ctx, sdktransfertypes.ModuleName, sdk.NewCoins(token)); err != nil {
// NOTE: should not happen as the module account was
// retrieved on the step above and it has enough balace
// to burn.
panic(fmt.Sprintf("cannot burn coins after a successful send to a module account: %v", err))
}
}
return fullDenomPath, nil
}