0g-chain/x/auction/keeper/auctions_test.go

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2019-12-28 18:46:53 +00:00
package keeper_test
import (
"testing"
"github.com/cosmos/cosmos-sdk/x/auth"
authexported "github.com/cosmos/cosmos-sdk/x/auth/exported"
"github.com/cosmos/cosmos-sdk/x/supply"
"github.com/stretchr/testify/require"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/kava-labs/kava/app"
"github.com/kava-labs/kava/x/auction/types"
"github.com/kava-labs/kava/x/liquidator"
)
func TestForwardAuctionBasic(t *testing.T) {
// Setup
_, addrs := app.GeneratePrivKeyAddressPairs(1)
buyer := addrs[0]
sellerModName := liquidator.ModuleName
sellerAddr := supply.NewModuleAddress(sellerModName)
tApp := app.NewTestApp()
sellerAcc := supply.NewEmptyModuleAccount(sellerModName, supply.Burner) // forward auctions burn proceeds
require.NoError(t, sellerAcc.SetCoins(cs(c("token1", 100), c("token2", 100))))
tApp.InitializeFromGenesisStates(
NewAuthGenStateFromAccs(authexported.GenesisAccounts{
auth.NewBaseAccount(buyer, cs(c("token1", 100), c("token2", 100)), nil, 0, 0),
sellerAcc,
}),
)
ctx := tApp.NewContext(false, abci.Header{})
keeper := tApp.GetAuctionKeeper()
// Create an auction (lot: 20 token1, initialBid: 0 token2)
auctionID, err := keeper.StartForwardAuction(ctx, sellerModName, c("token1", 20), "token2") // lot, bid denom
require.NoError(t, err)
// Check seller's coins have decreased
tApp.CheckBalance(t, ctx, sellerAddr, cs(c("token1", 80), c("token2", 100)))
// PlaceBid (bid: 10 token, lot: same as starting)
require.NoError(t, keeper.PlaceBid(ctx, auctionID, buyer, c("token2", 10), c("token1", 20))) // bid, lot
// Check buyer's coins have decreased
tApp.CheckBalance(t, ctx, buyer, cs(c("token1", 100), c("token2", 90)))
// Check seller's coins have not increased (because proceeds are burned)
tApp.CheckBalance(t, ctx, sellerAddr, cs(c("token1", 80), c("token2", 100)))
// Close auction at just at auction expiry time
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ctx = ctx.WithBlockTime(ctx.BlockTime().Add(types.DefaultBidDuration))
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require.NoError(t, keeper.CloseAuction(ctx, auctionID))
// Check buyer's coins increased
tApp.CheckBalance(t, ctx, buyer, cs(c("token1", 120), c("token2", 90)))
}
func TestReverseAuctionBasic(t *testing.T) {
// Setup
_, addrs := app.GeneratePrivKeyAddressPairs(1)
seller := addrs[0]
buyerModName := liquidator.ModuleName
buyerAddr := supply.NewModuleAddress(buyerModName)
tApp := app.NewTestApp()
tApp.InitializeFromGenesisStates(
NewAuthGenStateFromAccs(authexported.GenesisAccounts{
auth.NewBaseAccount(seller, cs(c("token1", 100), c("token2", 100)), nil, 0, 0),
supply.NewEmptyModuleAccount(buyerModName, supply.Minter), // reverse auctions mint payout
}),
)
ctx := tApp.NewContext(false, abci.Header{})
keeper := tApp.GetAuctionKeeper()
// Start auction
auctionID, err := keeper.StartReverseAuction(ctx, buyerModName, c("token1", 20), c("token2", 99999)) // buyer, bid, initialLot
require.NoError(t, err)
// Check buyer's coins have not decreased, as lot is minted at the end
tApp.CheckBalance(t, ctx, buyerAddr, nil) // zero coins
// Place a bid
require.NoError(t, keeper.PlaceBid(ctx, 0, seller, c("token1", 20), c("token2", 10))) // bid, lot
// Check seller's coins have decreased
tApp.CheckBalance(t, ctx, seller, cs(c("token1", 80), c("token2", 100)))
// Check buyer's coins have increased
tApp.CheckBalance(t, ctx, buyerAddr, cs(c("token1", 20)))
// Close auction at just after auction expiry
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ctx = ctx.WithBlockTime(ctx.BlockTime().Add(types.DefaultBidDuration))
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require.NoError(t, keeper.CloseAuction(ctx, auctionID))
// Check seller's coins increased
tApp.CheckBalance(t, ctx, seller, cs(c("token1", 80), c("token2", 110)))
}
func TestForwardReverseAuctionBasic(t *testing.T) {
// Setup
_, addrs := app.GeneratePrivKeyAddressPairs(2)
buyer := addrs[0]
recipient := addrs[1]
sellerModName := liquidator.ModuleName
sellerAddr := supply.NewModuleAddress(sellerModName)
tApp := app.NewTestApp()
sellerAcc := supply.NewEmptyModuleAccount(sellerModName)
require.NoError(t, sellerAcc.SetCoins(cs(c("token1", 100), c("token2", 100))))
tApp.InitializeFromGenesisStates(
NewAuthGenStateFromAccs(authexported.GenesisAccounts{
auth.NewBaseAccount(buyer, cs(c("token1", 100), c("token2", 100)), nil, 0, 0),
auth.NewBaseAccount(recipient, cs(c("token1", 100), c("token2", 100)), nil, 0, 0),
sellerAcc,
}),
)
ctx := tApp.NewContext(false, abci.Header{})
keeper := tApp.GetAuctionKeeper()
// Start auction
auctionID, err := keeper.StartForwardReverseAuction(ctx, sellerModName, c("token1", 20), c("token2", 50), recipient) // seller, lot, maxBid, otherPerson
require.NoError(t, err)
// Check seller's coins have decreased
tApp.CheckBalance(t, ctx, sellerAddr, cs(c("token1", 80), c("token2", 100)))
// Place a forward bid
require.NoError(t, keeper.PlaceBid(ctx, 0, buyer, c("token2", 10), c("token1", 20))) // bid, lot
// Check bidder's coins have decreased
tApp.CheckBalance(t, ctx, buyer, cs(c("token1", 100), c("token2", 90)))
// Check seller's coins have increased
tApp.CheckBalance(t, ctx, sellerAddr, cs(c("token1", 80), c("token2", 110)))
// Check recipient has not received coins
tApp.CheckBalance(t, ctx, recipient, cs(c("token1", 100), c("token2", 100)))
// Place a reverse bid
require.NoError(t, keeper.PlaceBid(ctx, 0, buyer, c("token2", 50), c("token1", 15))) // bid, lot
// Check bidder's coins have decreased
tApp.CheckBalance(t, ctx, buyer, cs(c("token1", 100), c("token2", 50)))
// Check seller's coins have increased
tApp.CheckBalance(t, ctx, sellerAddr, cs(c("token1", 80), c("token2", 150)))
// Check "recipient" has received coins
tApp.CheckBalance(t, ctx, recipient, cs(c("token1", 105), c("token2", 100)))
// Close auction at just after auction expiry
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ctx = ctx.WithBlockTime(ctx.BlockTime().Add(types.DefaultBidDuration))
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require.NoError(t, keeper.CloseAuction(ctx, auctionID))
// Check buyer's coins increased
tApp.CheckBalance(t, ctx, buyer, cs(c("token1", 115), c("token2", 50)))
}