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Unverified Commit d9f20316 authored by Dev Ojha's avatar Dev Ojha Committed by GitHub
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Remove expected liquidity field (#1778)

parent 5f5184a7
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with 12 additions and 36 deletions
+12 -36
x/gamm/pool-models/balancer/amm_test.go
+ 12
- 36
View file @ d9f20316
......@@ -28,13 +28,14 @@ const (
)
var (
oneTrillion = sdk.NewInt(1e12)
oneTrillionEvenPoolAssets = []balancer.PoolAsset{
{
Token: sdk.NewInt64Coin("uosmo", 1_000_000_000_000),
Token: sdk.NewCoin("uosmo", oneTrillion),
Weight: sdk.NewInt(100),
},
{
Token: sdk.NewInt64Coin("uatom", 1_000_000_000_000),
Token: sdk.NewCoin("uatom", oneTrillion),
Weight: sdk.NewInt(100),
},
}
......@@ -78,7 +79,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
poolAssets: oneTrillionEvenPoolAssets,
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
expectShares: sdk.NewInt(2_499_999_968_750),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -100,7 +100,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
poolAssets: oneTrillionEvenPoolAssets,
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
expectShares: sdk.NewInt(2_487_500_000_000),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -122,7 +121,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
poolAssets: oneTrillionEvenPoolAssets,
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
expectShares: sdk.NewInt(1_262_500_000_000),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -153,7 +151,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
},
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
expectShares: sdk.NewInt(321_875_000_000),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -183,7 +180,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
},
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
expectShares: sdk.NewInt(4_166_666_649_306),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -213,7 +209,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
},
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
expectShares: sdk.NewInt(4_159_722_200_000),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -243,7 +238,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
},
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
expectShares: sdk.NewInt(833_333_315_972),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -273,7 +267,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
},
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
expectShares: sdk.NewInt(819_444_430_000),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 50_000)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -304,7 +297,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
// 156_736 * 3 / 4 = 117552
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", (156_736*3)/4)),
expectShares: sdk.NewIntFromUint64(9_775_731_930_496_140_648),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", (156_736*3)/4)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -335,7 +327,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
// 156_736 / 4 * 3 = 117552
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 156_736/4*3)),
expectShares: sdk.NewIntFromUint64(9_644_655_900_000_000_000),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 156_736/4*3)),
},
{
// Expected output from Balancer paper (https://balancer.fi/whitepaper.pdf) using equation (25) on page 10:
......@@ -365,7 +356,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
},
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 499_999)),
expectShares: sdk.NewIntFromUint64(6_504_099_261_800_144_638),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 499_999)),
},
{
// Currently, our Pow approximation function does not work correctly when one tries
......@@ -387,7 +377,6 @@ var calcSingleAssetJoinTestCases = []calcJoinSharesTestCase{
},
tokensIn: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 500_000)),
expectShares: sdk.NewIntFromUint64(6_504_099_261_800_144_638),
expectLiq: sdk.NewCoins(sdk.NewInt64Coin("uosmo", 499_999)),
expectPanic: true,
},
{
......@@ -740,10 +729,6 @@ func TestCalcJoinPoolShares(t *testing.T) {
// Initial number of pool shares = 100 * 10**18 = 10**20
// Expected increase = liquidity_increase_ratio * initial number of pool shares = (25_000 / 1_000_000_000_000) * 10**20 = 2500000000000.0 = 2.5 * 10**12
expectShares: sdk.NewInt(2.5e12),
expectLiq: sdk.NewCoins(
sdk.NewInt64Coin("uosmo", 25_000),
sdk.NewInt64Coin("uatom", 25_000),
),
},
{
name: "swap equal weights with 0.001 swap fee",
......@@ -754,10 +739,6 @@ func TestCalcJoinPoolShares(t *testing.T) {
sdk.NewInt64Coin("uatom", 25_000),
),
expectShares: sdk.NewInt(2500000000000),
expectLiq: sdk.NewCoins(
sdk.NewInt64Coin("uosmo", 25_000),
sdk.NewInt64Coin("uatom", 25_000),
),
},
{
// For uosmos and uatom
......@@ -786,10 +767,6 @@ func TestCalcJoinPoolShares(t *testing.T) {
),
expectShares: sdk.NewInt(2.5e12 + 1249999992187),
expectLiq: sdk.NewCoins(
sdk.NewInt64Coin("uosmo", 25_000),
sdk.NewInt64Coin("uatom", 50_000),
),
},
{
// For uosmos and uatom
......@@ -818,10 +795,6 @@ func TestCalcJoinPoolShares(t *testing.T) {
),
expectShares: sdk.NewInt(2.5e12 + 1243750000000),
expectLiq: sdk.NewCoins(
sdk.NewInt64Coin("uosmo", 25_000),
sdk.NewInt64Coin("uatom", 50_000),
),
},
{
// join pool is first done to the extent where the ratio can be preserved, which is 25,000 uosmo and 12,500 uatom.
......@@ -858,12 +831,7 @@ func TestCalcJoinPoolShares(t *testing.T) {
sdk.NewInt64Coin("uosmo", 25_000),
sdk.NewInt64Coin("uatom", 50_000),
),
expectShares: sdk.NewInt(1250000000000 + 609374990000),
expectLiq: sdk.NewCoins(
sdk.NewInt64Coin("uosmo", 25_000),
sdk.NewInt64Coin("uatom", 50_000),
),
},
}
testCases = append(testCases, calcSingleAssetJoinTestCases...)
......@@ -885,7 +853,7 @@ func TestCalcJoinPoolShares(t *testing.T) {
} else {
require.NoError(t, err)
assertExpectedSharesErrRatio(t, tc.expectShares, shares)
require.Equal(t, tc.expectLiq, liquidity)
assertExpectedLiquidity(t, tc.expectLiq, tc.tokensIn, liquidity)
}
}
......@@ -1499,3 +1467,11 @@ func assertExpectedSharesErrRatio(t *testing.T, expectedShares, actualShares sdk
errTolerance.Compare(expectedShares, actualShares),
fmt.Sprintf("expectedShares: %s, actualShares: %s", expectedShares.String(), actualShares.String()))
}
func assertExpectedLiquidity(t *testing.T, expectLiq, tokensJoined, liquidity sdk.Coins) {
if len(expectLiq) != 0 {
require.Equal(t, expectLiq, liquidity)
} else {
require.Equal(t, tokensJoined, liquidity)
}
}
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