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feat(core): implement core MEV bot functionality with market scanning and Uniswap V3 pricing

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Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
This commit is contained in:
Krypto Kajun
2025-09-14 10:16:29 -05:00
parent 5db7587923
commit c16182d80c
1364 changed files with 473970 additions and 1202 deletions
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34
test/fuzzing/price_fuzzing_test.go
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@@ -38,7 +38,7 @@ func FuzzPricingConversions(f *testing.F) {
// Convert price to sqrtPriceX96 and back
priceBigFloat := new(big.Float).SetFloat64(price)
sqrtPriceX96 := uniswap.PriceToSqrtPriceX96(priceBigFloat)
// Verify sqrtPriceX96 is positive
require.True(t, sqrtPriceX96.Sign() > 0, "sqrtPriceX96 must be positive")
@@ -50,7 +50,7 @@ func FuzzPricingConversions(f *testing.F) {
require.True(t, convertedPriceFloat > 0, "Converted price must be positive")
// Check round-trip consistency (allow some tolerance for floating point precision)
tolerance := 0.01 // 1% tolerance
tolerance := 0.01 // 1% tolerance
if price > 0.01 && price < 100000 { // For reasonable price ranges
relativeError := abs(price-convertedPriceFloat) / price
assert.True(t, relativeError < tolerance,
@@ -77,7 +77,7 @@ func FuzzTickConversions(f *testing.F) {
// Convert tick to sqrtPriceX96 and back
sqrtPriceX96 := uniswap.TickToSqrtPriceX96(tick)
// Verify sqrtPriceX96 is positive
require.True(t, sqrtPriceX96.Sign() > 0, "sqrtPriceX96 must be positive")
@@ -94,11 +94,11 @@ func FuzzTickConversions(f *testing.F) {
// FuzzSqrtPriceX96Operations performs fuzz testing on sqrtPriceX96 operations
func FuzzSqrtPriceX96Operations(f *testing.F) {
// Add seed values for fuzzing
f.Add("79228162514264337593543950336") // 2^96 (price = 1)
f.Add("158456325028528675187087900672") // 2 * 2^96 (price = 4)
f.Add("39614081257132168796771975168") // 2^95 (price = 0.25)
f.Add("1122334455667788990011223344") // Random value
f.Add("999888777666555444333222111") // Another random value
f.Add("79228162514264337593543950336") // 2^96 (price = 1)
f.Add("158456325028528675187087900672") // 2 * 2^96 (price = 4)
f.Add("39614081257132168796771975168") // 2^95 (price = 0.25)
f.Add("1122334455667788990011223344") // Random value
f.Add("999888777666555444333222111") // Another random value
f.Fuzz(func(t *testing.T, sqrtPriceX96Str string) {
sqrtPriceX96 := new(big.Int)
@@ -139,18 +139,18 @@ func FuzzSqrtPriceX96Operations(f *testing.F) {
// Convert sqrtPriceX96 to tick
tick := uniswap.SqrtPriceX96ToTick(sqrtPriceX96)
// Verify tick is in valid range
assert.True(t, tick >= -887272 && tick <= 887272,
"Tick %d outside valid range", tick)
// Convert back to sqrtPriceX96
backToSqrtPrice := uniswap.TickToSqrtPriceX96(tick)
// Check consistency (allow small difference due to rounding)
diff := new(big.Int).Sub(sqrtPriceX96, backToSqrtPrice)
diff.Abs(diff)
// Allow difference of up to 0.01% of original value
tolerance := new(big.Int).Div(sqrtPriceX96, big.NewInt(10000))
assert.True(t, diff.Cmp(tolerance) <= 0,
@@ -162,10 +162,10 @@ func FuzzSqrtPriceX96Operations(f *testing.F) {
// FuzzPriceImpactCalculations performs fuzz testing on price impact calculations
func FuzzPriceImpactCalculations(f *testing.F) {
// Add seed values for fuzzing
f.Add(int64(1000000), int64(1000000000000000000)) // Small swap, large liquidity
f.Add(int64(1000000), int64(1000000000000000000)) // Small swap, large liquidity
f.Add(int64(1000000000), int64(1000000000000000000)) // Large swap, large liquidity
f.Add(int64(1000000), int64(1000000000)) // Small swap, small liquidity
f.Add(int64(100000000), int64(1000000000)) // Large swap, small liquidity
f.Add(int64(1000000), int64(1000000000)) // Small swap, small liquidity
f.Add(int64(100000000), int64(1000000000)) // Large swap, small liquidity
f.Fuzz(func(t *testing.T, swapAmount int64, liquidity int64) {
// Skip invalid inputs
@@ -240,9 +240,9 @@ func FuzzMathematicalProperties(f *testing.F) {
if geometricMean > 0 {
geometricMeanSqrt := new(big.Float).SetFloat64(geometricMean)
geometricMeanSqrt.Sqrt(geometricMeanSqrt)
geometricMeanSqrtX96 := uniswap.PriceToSqrtPriceX96(geometricMeanSqrt)
// Calculate geometric mean of sqrtPrices
// This is complex with big integers, so we'll skip this test for extreme values
if sqrtPrice1.BitLen() < 200 && sqrtPrice2.BitLen() < 200 {
@@ -267,4 +267,4 @@ func abs64(x int64) int64 {
return -x
}
return x
}
}