mirror of
https://github.com/0glabs/0g-chain.git
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101 lines
3.5 KiB
Go
101 lines
3.5 KiB
Go
package keeper_test
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import (
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"testing"
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"time"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/stretchr/testify/suite"
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abci "github.com/tendermint/tendermint/abci/types"
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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/cdp/keeper"
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)
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type FeeTestSuite struct {
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suite.Suite
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keeper keeper.Keeper
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app app.TestApp
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ctx sdk.Context
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}
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func (suite *FeeTestSuite) SetupTest() {
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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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tApp.InitializeFromGenesisStates(
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NewPricefeedGenStateMulti(),
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NewCDPGenStateMulti(),
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)
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keeper := tApp.GetCDPKeeper()
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suite.app = tApp
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suite.ctx = ctx
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suite.keeper = keeper
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}
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// createCdps is a helper function to create two CDPs each with zero fees
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func (suite *FeeTestSuite) createCdps() {
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// create 2 accounts in the state and give them some coins
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// create two private key pair addresses
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_, addrs := app.GeneratePrivKeyAddressPairs(2)
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ak := suite.app.GetAccountKeeper()
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// setup the first account
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acc := ak.NewAccountWithAddress(suite.ctx, addrs[0])
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acc.SetCoins(cs(c("xrp", 200000000), c("btc", 500000000)))
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ak.SetAccount(suite.ctx, acc)
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// now setup the second account
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acc2 := ak.NewAccountWithAddress(suite.ctx, addrs[1])
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acc2.SetCoins(cs(c("xrp", 200000000), c("btc", 500000000)))
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ak.SetAccount(suite.ctx, acc2)
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// now create two cdps with the addresses we just created
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// use the created account to create a cdp that SHOULD have fees updated
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// to get a ratio between 100 - 110% of liquidation ratio we can use 200xrp ($50) and 24 usdx (208% collateralization with liquidation ratio of 200%)
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// create CDP for the first address
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err := suite.keeper.AddCdp(suite.ctx, addrs[0], c("xrp", 200000000), c("usdx", 24000000))
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suite.NoError(err) // check that no error was thrown
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// use the other account to create a cdp that SHOULD NOT have fees updated - 500% collateralization
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// create CDP for the second address
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err = suite.keeper.AddCdp(suite.ctx, addrs[1], c("xrp", 200000000), c("usdx", 10000000))
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suite.NoError(err) // check that no error was thrown
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}
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// TestUpdateFees tests the functionality for updating the fees for CDPs
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func (suite *FeeTestSuite) TestUpdateFees() {
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// this helper function creates two CDPs with id 1 and 2 respectively, each with zero fees
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suite.createCdps()
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// move the context forward in time so that cdps will have fees accumulate if CalculateFees is called
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// note - time must be moved forward by a sufficient amount in order for additional
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// fees to accumulate, in this example 600 seconds
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oldtime := suite.ctx.BlockTime()
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suite.ctx = suite.ctx.WithBlockTime(suite.ctx.BlockTime().Add(time.Second * 600))
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err := suite.keeper.UpdateFeesForAllCdps(suite.ctx, "xrp")
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suite.NoError(err) // check that we don't have any error
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// cdp we expect fees to accumulate for
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cdp1, found := suite.keeper.GetCDP(suite.ctx, "xrp", 1)
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suite.True(found)
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// check fees are not zero
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// check that the fees have been updated
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suite.False(cdp1.AccumulatedFees.IsZero())
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// now check that we have the correct amount of fees overall (22 USDX for this scenario)
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suite.Equal(sdk.NewInt(22), cdp1.AccumulatedFees.Amount)
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suite.Equal(suite.ctx.BlockTime(), cdp1.FeesUpdated)
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// cdp we expect fees to not accumulate for because of rounding to zero
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cdp2, found := suite.keeper.GetCDP(suite.ctx, "xrp", 2)
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suite.True(found)
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// check fees are zero
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suite.True(cdp2.AccumulatedFees.IsZero())
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suite.Equal(oldtime, cdp2.FeesUpdated)
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}
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func TestFeeTestSuite(t *testing.T) {
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suite.Run(t, new(FeeTestSuite))
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}
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