mirror of
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356 lines
18 KiB
Go
356 lines
18 KiB
Go
package keeper_test
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import (
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"strings"
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"time"
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sdk "github.com/cosmos/cosmos-sdk/types"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/crypto"
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tmtime "github.com/tendermint/tendermint/types/time"
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"github.com/kava-labs/kava/app"
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"github.com/kava-labs/kava/x/harvest/types"
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"github.com/kava-labs/kava/x/pricefeed"
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)
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const (
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USDX_CF = 1000000
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KAVA_CF = 1000000
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BTCB_CF = 100000000
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BNB_CF = 100000000
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BUSD_CF = 100000000
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)
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func (suite *KeeperTestSuite) TestBorrow() {
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type args struct {
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priceKAVA sdk.Dec
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loanToValueKAVA sdk.Dec
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priceBTCB sdk.Dec
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loanToValueBTCB sdk.Dec
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priceBNB sdk.Dec
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loanToValueBNB sdk.Dec
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borrower sdk.AccAddress
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depositCoins []sdk.Coin
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previousBorrowCoins sdk.Coins
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borrowCoins sdk.Coins
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expectedAccountBalance sdk.Coins
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expectedModAccountBalance sdk.Coins
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}
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type errArgs struct {
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expectPass bool
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contains string
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}
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type borrowTest struct {
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name string
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args args
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errArgs errArgs
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}
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testCases := []borrowTest{
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{
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"valid",
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args{
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priceKAVA: sdk.MustNewDecFromStr("5.00"),
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loanToValueKAVA: sdk.MustNewDecFromStr("0.6"),
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priceBTCB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBTCB: sdk.MustNewDecFromStr("0.01"),
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priceBNB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBNB: sdk.MustNewDecFromStr("0.01"),
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borrower: sdk.AccAddress(crypto.AddressHash([]byte("test"))),
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depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))},
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previousBorrowCoins: sdk.NewCoins(),
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borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(20*KAVA_CF))),
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expectedAccountBalance: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(20*KAVA_CF)), sdk.NewCoin("btcb", sdk.NewInt(100*BTCB_CF)), sdk.NewCoin("bnb", sdk.NewInt(100*BNB_CF)), sdk.NewCoin("xyz", sdk.NewInt(1))),
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expectedModAccountBalance: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(1080*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(200*USDX_CF)), sdk.NewCoin("busd", sdk.NewInt(100*BUSD_CF))),
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},
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errArgs{
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expectPass: true,
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contains: "",
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},
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},
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{
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"invalid: loan-to-value limited",
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args{
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priceKAVA: sdk.MustNewDecFromStr("5.00"),
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loanToValueKAVA: sdk.MustNewDecFromStr("0.6"),
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priceBTCB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBTCB: sdk.MustNewDecFromStr("0.01"),
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priceBNB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBNB: sdk.MustNewDecFromStr("0.01"),
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borrower: sdk.AccAddress(crypto.AddressHash([]byte("test"))),
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depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(20*KAVA_CF))}, // 20 KAVA x $5.00 price = $100
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borrowCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(61*USDX_CF))), // 61 USDX x $1 price = $61
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expectedAccountBalance: sdk.NewCoins(),
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expectedModAccountBalance: sdk.NewCoins(),
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},
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errArgs{
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expectPass: false,
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contains: "total deposited value is insufficient for borrow request",
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},
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},
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{
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"valid: multiple deposits",
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args{
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priceKAVA: sdk.MustNewDecFromStr("2.00"),
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loanToValueKAVA: sdk.MustNewDecFromStr("0.80"),
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priceBTCB: sdk.MustNewDecFromStr("10000.00"),
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loanToValueBTCB: sdk.MustNewDecFromStr("0.10"),
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priceBNB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBNB: sdk.MustNewDecFromStr("0.01"),
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borrower: sdk.AccAddress(crypto.AddressHash([]byte("test"))),
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depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(50*KAVA_CF)), sdk.NewCoin("btcb", sdk.NewInt(0.1*BTCB_CF))},
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borrowCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(180*USDX_CF))),
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expectedAccountBalance: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(50*KAVA_CF)), sdk.NewCoin("btcb", sdk.NewInt(99.9*BTCB_CF)), sdk.NewCoin("usdx", sdk.NewInt(180*USDX_CF)), sdk.NewCoin("bnb", sdk.NewInt(100*BNB_CF)), sdk.NewCoin("xyz", sdk.NewInt(1))),
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expectedModAccountBalance: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(1050*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(20*USDX_CF)), sdk.NewCoin("btcb", sdk.NewInt(0.1*BTCB_CF)), sdk.NewCoin("busd", sdk.NewInt(100*BUSD_CF))),
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},
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errArgs{
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expectPass: true,
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contains: "",
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},
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},
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{
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"invalid: multiple deposits",
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args{
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priceKAVA: sdk.MustNewDecFromStr("2.00"),
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loanToValueKAVA: sdk.MustNewDecFromStr("0.80"),
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priceBTCB: sdk.MustNewDecFromStr("10000.00"),
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loanToValueBTCB: sdk.MustNewDecFromStr("0.10"),
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priceBNB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBNB: sdk.MustNewDecFromStr("0.01"),
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borrower: sdk.AccAddress(crypto.AddressHash([]byte("test"))),
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depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(50*KAVA_CF)), sdk.NewCoin("btcb", sdk.NewInt(0.1*BTCB_CF))},
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borrowCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(181*USDX_CF))),
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expectedAccountBalance: sdk.NewCoins(),
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expectedModAccountBalance: sdk.NewCoins(),
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},
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errArgs{
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expectPass: false,
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contains: "total deposited value is insufficient for borrow request",
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},
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},
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{
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"valid: multiple previous borrows",
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args{
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priceKAVA: sdk.MustNewDecFromStr("2.00"),
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loanToValueKAVA: sdk.MustNewDecFromStr("0.8"),
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priceBTCB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBTCB: sdk.MustNewDecFromStr("0.01"),
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priceBNB: sdk.MustNewDecFromStr("5.00"),
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loanToValueBNB: sdk.MustNewDecFromStr("0.8"),
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borrower: sdk.AccAddress(crypto.AddressHash([]byte("test"))),
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depositCoins: []sdk.Coin{sdk.NewCoin("bnb", sdk.NewInt(30*BNB_CF)), sdk.NewCoin("ukava", sdk.NewInt(50*KAVA_CF))}, // (50 KAVA x $2.00 price = $100) + (30 BNB x $5.00 price = $150) = $250
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previousBorrowCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(99*USDX_CF)), sdk.NewCoin("busd", sdk.NewInt(100*BUSD_CF))),
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borrowCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(1*USDX_CF))),
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expectedAccountBalance: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(50*KAVA_CF)), sdk.NewCoin("btcb", sdk.NewInt(100*BTCB_CF)), sdk.NewCoin("usdx", sdk.NewInt(100*USDX_CF)), sdk.NewCoin("busd", sdk.NewInt(100*BUSD_CF)), sdk.NewCoin("bnb", sdk.NewInt(70*BNB_CF)), sdk.NewCoin("xyz", sdk.NewInt(1))),
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expectedModAccountBalance: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(1050*KAVA_CF)), sdk.NewCoin("bnb", sdk.NewInt(30*BUSD_CF)), sdk.NewCoin("usdx", sdk.NewInt(100*USDX_CF))),
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},
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errArgs{
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expectPass: true,
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contains: "",
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},
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},
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{
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"invalid: over loan-to-value with multiple previous borrows",
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args{
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priceKAVA: sdk.MustNewDecFromStr("2.00"),
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loanToValueKAVA: sdk.MustNewDecFromStr("0.8"),
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priceBTCB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBTCB: sdk.MustNewDecFromStr("0.01"),
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priceBNB: sdk.MustNewDecFromStr("5.00"),
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loanToValueBNB: sdk.MustNewDecFromStr("0.8"),
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borrower: sdk.AccAddress(crypto.AddressHash([]byte("test"))),
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depositCoins: []sdk.Coin{sdk.NewCoin("bnb", sdk.NewInt(30*BNB_CF)), sdk.NewCoin("ukava", sdk.NewInt(50*KAVA_CF))}, // (50 KAVA x $2.00 price = $100) + (30 BNB x $5.00 price = $150) = $250
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previousBorrowCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(100*USDX_CF)), sdk.NewCoin("busd", sdk.NewInt(100*BUSD_CF))),
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borrowCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(1*USDX_CF))),
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expectedAccountBalance: sdk.NewCoins(),
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expectedModAccountBalance: sdk.NewCoins(),
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},
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errArgs{
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expectPass: false,
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contains: "requested borrow 1000000usdx is greater than maximum valid borrow",
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},
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},
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{
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"invalid: no price for asset",
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args{
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priceKAVA: sdk.MustNewDecFromStr("5.00"),
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loanToValueKAVA: sdk.MustNewDecFromStr("0.6"),
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priceBTCB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBTCB: sdk.MustNewDecFromStr("0.01"),
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priceBNB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBNB: sdk.MustNewDecFromStr("0.01"),
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borrower: sdk.AccAddress(crypto.AddressHash([]byte("test"))),
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depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))},
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previousBorrowCoins: sdk.NewCoins(),
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borrowCoins: sdk.NewCoins(sdk.NewCoin("xyz", sdk.NewInt(1))),
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expectedAccountBalance: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(20*KAVA_CF)), sdk.NewCoin("btcb", sdk.NewInt(100*BTCB_CF)), sdk.NewCoin("bnb", sdk.NewInt(100*BNB_CF)), sdk.NewCoin("xyz", sdk.NewInt(1))),
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expectedModAccountBalance: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(1080*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(200*USDX_CF)), sdk.NewCoin("busd", sdk.NewInt(100*BUSD_CF))),
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},
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errArgs{
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expectPass: false,
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contains: "no price found for market",
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},
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},
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{
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"invalid: borrow exceed module account balance",
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args{
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priceKAVA: sdk.MustNewDecFromStr("2.00"),
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loanToValueKAVA: sdk.MustNewDecFromStr("0.8"),
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priceBTCB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBTCB: sdk.MustNewDecFromStr("0.01"),
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priceBNB: sdk.MustNewDecFromStr("0.00"),
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loanToValueBNB: sdk.MustNewDecFromStr("0.01"),
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borrower: sdk.AccAddress(crypto.AddressHash([]byte("test"))),
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depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))},
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previousBorrowCoins: sdk.NewCoins(),
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borrowCoins: sdk.NewCoins(sdk.NewCoin("busd", sdk.NewInt(101*BUSD_CF))),
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expectedAccountBalance: sdk.NewCoins(),
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expectedModAccountBalance: sdk.NewCoins(),
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},
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errArgs{
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expectPass: false,
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contains: "exceeds module account balance:",
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},
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},
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}
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for _, tc := range testCases {
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suite.Run(tc.name, func() {
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// Initialize test app and set context
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tApp := app.NewTestApp()
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ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()})
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// Auth module genesis state
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authGS := app.NewAuthGenState(
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[]sdk.AccAddress{tc.args.borrower},
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[]sdk.Coins{sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF)),
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sdk.NewCoin("btcb", sdk.NewInt(100*BTCB_CF)), sdk.NewCoin("bnb", sdk.NewInt(100*BNB_CF)),
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sdk.NewCoin("xyz", sdk.NewInt(1)))})
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// Harvest module genesis state
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harvestGS := types.NewGenesisState(types.NewParams(
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true,
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types.DistributionSchedules{
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types.NewDistributionSchedule(true, "usdx", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
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types.NewDistributionSchedule(true, "ukava", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
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types.NewDistributionSchedule(true, "btcb", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
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types.NewDistributionSchedule(true, "busd", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
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types.NewDistributionSchedule(true, "bnb", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
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types.NewDistributionSchedule(true, "xyz", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
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},
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types.DelegatorDistributionSchedules{types.NewDelegatorDistributionSchedule(
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types.NewDistributionSchedule(true, "usdx", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2025, 10, 8, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(500)), time.Date(2026, 10, 8, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
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time.Hour*24,
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),
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},
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types.MoneyMarkets{
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types.NewMoneyMarket("usdx", sdk.NewInt(100000000*USDX_CF), sdk.MustNewDecFromStr("1"), "usdx:usd", sdk.NewInt(USDX_CF)),
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types.NewMoneyMarket("busd", sdk.NewInt(100000000*BUSD_CF), sdk.MustNewDecFromStr("1"), "busd:usd", sdk.NewInt(BUSD_CF)),
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types.NewMoneyMarket("ukava", sdk.NewInt(100000000*KAVA_CF), tc.args.loanToValueKAVA, "kava:usd", sdk.NewInt(KAVA_CF)),
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types.NewMoneyMarket("btcb", sdk.NewInt(100000000*BTCB_CF), tc.args.loanToValueBTCB, "btcb:usd", sdk.NewInt(BTCB_CF)),
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types.NewMoneyMarket("bnb", sdk.NewInt(100000000*BNB_CF), tc.args.loanToValueBNB, "bnb:usd", sdk.NewInt(BNB_CF)),
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types.NewMoneyMarket("xyz", sdk.NewInt(1), tc.args.loanToValueBNB, "xyz:usd", sdk.NewInt(1)),
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},
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), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
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// Pricefeed module genesis state
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pricefeedGS := pricefeed.GenesisState{
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Params: pricefeed.Params{
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Markets: []pricefeed.Market{
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{MarketID: "usdx:usd", BaseAsset: "usdx", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true},
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{MarketID: "busd:usd", BaseAsset: "busd", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true},
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{MarketID: "kava:usd", BaseAsset: "kava", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true},
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{MarketID: "btcb:usd", BaseAsset: "btcb", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true},
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{MarketID: "bnb:usd", BaseAsset: "bnb", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true},
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{MarketID: "xyz:usd", BaseAsset: "xyz", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true},
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},
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},
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PostedPrices: []pricefeed.PostedPrice{
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{
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MarketID: "usdx:usd",
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OracleAddress: sdk.AccAddress{},
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Price: sdk.MustNewDecFromStr("1.00"),
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Expiry: time.Now().Add(1 * time.Hour),
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},
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{
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MarketID: "busd:usd",
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OracleAddress: sdk.AccAddress{},
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Price: sdk.MustNewDecFromStr("1.00"),
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Expiry: time.Now().Add(1 * time.Hour),
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},
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{
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MarketID: "kava:usd",
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OracleAddress: sdk.AccAddress{},
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Price: tc.args.priceKAVA,
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Expiry: time.Now().Add(1 * time.Hour),
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},
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{
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MarketID: "btcb:usd",
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OracleAddress: sdk.AccAddress{},
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Price: tc.args.priceBTCB,
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Expiry: time.Now().Add(1 * time.Hour),
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},
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{
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MarketID: "bnb:usd",
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OracleAddress: sdk.AccAddress{},
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Price: tc.args.priceBNB,
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|
Expiry: time.Now().Add(1 * time.Hour),
|
|
},
|
|
},
|
|
}
|
|
|
|
// Initialize test application
|
|
tApp.InitializeFromGenesisStates(authGS,
|
|
app.GenesisState{pricefeed.ModuleName: pricefeed.ModuleCdc.MustMarshalJSON(pricefeedGS)},
|
|
app.GenesisState{types.ModuleName: types.ModuleCdc.MustMarshalJSON(harvestGS)})
|
|
|
|
// Mint coins to Harvest module account
|
|
supplyKeeper := tApp.GetSupplyKeeper()
|
|
harvestMaccCoins := sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(1000*KAVA_CF)),
|
|
sdk.NewCoin("usdx", sdk.NewInt(200*USDX_CF)), sdk.NewCoin("busd", sdk.NewInt(100*BUSD_CF)))
|
|
supplyKeeper.MintCoins(ctx, types.ModuleAccountName, harvestMaccCoins)
|
|
|
|
keeper := tApp.GetHarvestKeeper()
|
|
suite.app = tApp
|
|
suite.ctx = ctx
|
|
suite.keeper = keeper
|
|
|
|
var err error
|
|
|
|
// Deposit coins to harvest
|
|
depositedCoins := sdk.NewCoins()
|
|
for _, depositCoin := range tc.args.depositCoins {
|
|
err = suite.keeper.Deposit(suite.ctx, tc.args.borrower, depositCoin, types.LP)
|
|
suite.Require().NoError(err)
|
|
depositedCoins.Add(depositCoin)
|
|
}
|
|
|
|
// Execute user's previous borrows
|
|
err = suite.keeper.Borrow(suite.ctx, tc.args.borrower, tc.args.previousBorrowCoins)
|
|
suite.Require().NoError(err)
|
|
|
|
// Now that our state is properly set up, execute the last borrow
|
|
err = suite.keeper.Borrow(suite.ctx, tc.args.borrower, tc.args.borrowCoins)
|
|
|
|
if tc.errArgs.expectPass {
|
|
suite.Require().NoError(err)
|
|
|
|
// Check borrower balance
|
|
acc := suite.getAccount(tc.args.borrower)
|
|
suite.Require().Equal(tc.args.expectedAccountBalance.Sub(depositedCoins), acc.GetCoins())
|
|
|
|
// Check module account balance
|
|
mAcc := suite.getModuleAccount(types.ModuleAccountName)
|
|
suite.Require().Equal(tc.args.expectedModAccountBalance.Add(depositedCoins...), mAcc.GetCoins())
|
|
|
|
// Check that borrow struct is in store
|
|
_, f := suite.keeper.GetBorrow(suite.ctx, tc.args.borrower)
|
|
suite.Require().True(f)
|
|
} else {
|
|
suite.Require().Error(err)
|
|
suite.Require().True(strings.Contains(err.Error(), tc.errArgs.contains))
|
|
}
|
|
})
|
|
}
|
|
}
|