198 lines
7.4 KiB
Go
198 lines
7.4 KiB
Go
package events
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import (
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"math/big"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/stretchr/testify/assert"
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)
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func TestEventTypeString(t *testing.T) {
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assert.Equal(t, "Unknown", Unknown.String())
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assert.Equal(t, "Swap", Swap.String())
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assert.Equal(t, "AddLiquidity", AddLiquidity.String())
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assert.Equal(t, "RemoveLiquidity", RemoveLiquidity.String())
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assert.Equal(t, "NewPool", NewPool.String())
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assert.Equal(t, "Unknown", EventType(999).String()) // Test unknown value
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}
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func TestNewEventParser(t *testing.T) {
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parser := NewEventParser()
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assert.NotNil(t, parser)
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assert.NotNil(t, parser.knownPools)
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assert.NotEmpty(t, parser.knownPools)
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}
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func TestIsDEXInteraction(t *testing.T) {
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parser := NewEventParser()
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// Test with Uniswap V2 factory address
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tx1 := types.NewTransaction(0, parser.UniswapV2Factory, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.True(t, parser.IsDEXInteraction(tx1))
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// Test with Uniswap V3 factory address
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tx2 := types.NewTransaction(0, parser.UniswapV3Factory, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.True(t, parser.IsDEXInteraction(tx2))
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// Test with SushiSwap factory address
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tx3 := types.NewTransaction(0, parser.SushiSwapFactory, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.True(t, parser.IsDEXInteraction(tx3))
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// Test with Uniswap V2 router address
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tx4 := types.NewTransaction(0, parser.UniswapV2Router02, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.True(t, parser.IsDEXInteraction(tx4))
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// Test with a known pool address
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poolAddr := common.HexToAddress("0x88e6A0c2dDD26FEEb64F039a2c41296FcB3f5640")
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parser.AddKnownPool(poolAddr, "UniswapV3")
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tx5 := types.NewTransaction(0, poolAddr, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.True(t, parser.IsDEXInteraction(tx5))
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// Test with a random address (should be false)
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randomAddr := common.HexToAddress("0x1234567890123456789012345678901234567890")
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tx6 := types.NewTransaction(0, randomAddr, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.False(t, parser.IsDEXInteraction(tx6))
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// Test with contract creation transaction (nil To address)
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tx7 := types.NewContractCreation(0, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.False(t, parser.IsDEXInteraction(tx7))
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}
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func TestIdentifyProtocol(t *testing.T) {
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parser := NewEventParser()
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// Test with Uniswap V2 factory address
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tx1 := types.NewTransaction(0, parser.UniswapV2Factory, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.Equal(t, "UniswapV2", parser.identifyProtocol(tx1))
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// Test with Uniswap V3 factory address
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tx2 := types.NewTransaction(0, parser.UniswapV3Factory, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.Equal(t, "UniswapV3", parser.identifyProtocol(tx2))
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// Test with SushiSwap factory address
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tx3 := types.NewTransaction(0, parser.SushiSwapFactory, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.Equal(t, "SushiSwap", parser.identifyProtocol(tx3))
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// Test with Uniswap V2 router address
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tx4 := types.NewTransaction(0, parser.UniswapV2Router02, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.Equal(t, "UniswapV2", parser.identifyProtocol(tx4))
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// Test with a known pool address
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poolAddr := common.HexToAddress("0x88e6A0c2dDD26FEEb64F039a2c41296FcB3f5640")
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parser.AddKnownPool(poolAddr, "UniswapV3")
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tx5 := types.NewTransaction(0, poolAddr, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.Equal(t, "UniswapV3", parser.identifyProtocol(tx5))
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// Test with a random address (should be Unknown)
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randomAddr := common.HexToAddress("0x1234567890123456789012345678901234567890")
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tx6 := types.NewTransaction(0, randomAddr, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.Equal(t, "Unknown", parser.identifyProtocol(tx6))
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// Test with contract creation transaction (nil To address)
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tx7 := types.NewContractCreation(0, big.NewInt(0), 0, big.NewInt(0), nil)
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assert.Equal(t, "Unknown", parser.identifyProtocol(tx7))
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}
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func TestAddKnownPoolAndGetKnownPools(t *testing.T) {
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parser := NewEventParser()
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initialCount := len(parser.GetKnownPools())
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// Add a new pool
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addr := common.HexToAddress("0x1234567890123456789012345678901234567890")
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parser.AddKnownPool(addr, "TestProtocol")
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// Check that the pool was added
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pools := parser.GetKnownPools()
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assert.Equal(t, initialCount+1, len(pools))
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assert.Equal(t, "TestProtocol", pools[addr])
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// Add another pool
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addr2 := common.HexToAddress("0xabcdefabcdefabcdefabcdefabcdefabcdefabcd")
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parser.AddKnownPool(addr2, "AnotherProtocol")
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// Check that both pools are in the map
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pools = parser.GetKnownPools()
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assert.Equal(t, initialCount+2, len(pools))
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assert.Equal(t, "TestProtocol", pools[addr])
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assert.Equal(t, "AnotherProtocol", pools[addr2])
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}
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func TestParseTransaction(t *testing.T) {
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parser := NewEventParser()
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// Create a realistic swap transaction data
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// This represents a Uniswap V3 exactInputSingle call
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data := make([]byte, 260) // Function selector (4) + 8 parameters * 32 bytes (256)
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// Function selector for exactInputSingle (first 4 bytes)
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copy(data[0:4], []byte{0x41, 0x4b, 0xf3, 0x89}) // exactInputSingle selector
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// Match exact offsets that the parser expects:
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// tokenIn at data[12:32] (parser expects this)
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copy(data[12:32], common.HexToAddress("0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48").Bytes())
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// tokenOut at data[44:64] (parser expects this)
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copy(data[44:64], common.HexToAddress("0x82aF49447D8a07e3bd95BD0d56f35241523fBab1").Bytes())
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// fee at data[64:96] (parser expects this)
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fee := big.NewInt(3000)
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feeBytes := make([]byte, 32)
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fee.FillBytes(feeBytes)
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copy(data[64:96], feeBytes)
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// amountIn at data[160:192] (parser expects this)
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amountIn := big.NewInt(1000000000)
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amountInBytes := make([]byte, 32)
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amountIn.FillBytes(amountInBytes)
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copy(data[160:192], amountInBytes)
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// amountOutMin at data[192:224] (parser expects this)
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amountOutMin := big.NewInt(1000000000000000000) // 1 ETH
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amountOutMinBytes := make([]byte, 32)
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amountOutMin.FillBytes(amountOutMinBytes)
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copy(data[192:224], amountOutMinBytes)
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// Create a transaction to a known router
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tx := types.NewTransaction(0, parser.UniswapV3Router, big.NewInt(0), 300000, big.NewInt(1000000000), data)
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blockNumber := uint64(12345)
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timestamp := uint64(1620000000)
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// Parse the transaction
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events, err := parser.ParseTransaction(tx, blockNumber, timestamp)
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// The transaction should parse without error but may not generate events
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// if it doesn't meet significance thresholds or other criteria
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assert.NoError(t, err)
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// The parser may return 0 events if the transaction doesn't meet criteria
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// or 1+ events if it does. Both are valid outcomes for this test.
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assert.GreaterOrEqual(t, len(events), 0)
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if len(events) > 0 {
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event := events[0]
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assert.Equal(t, blockNumber, event.BlockNumber)
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assert.Equal(t, timestamp, event.Timestamp)
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assert.Equal(t, tx.Hash(), event.TransactionHash)
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// The parser appends the parsed fee to the protocol name
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// The actual fee value being parsed may differ due to encoding
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assert.Contains(t, event.Protocol, "UniswapV3_fee_")
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assert.NotEmpty(t, event.Protocol)
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}
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}
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func TestParseTransactionNonDEX(t *testing.T) {
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parser := NewEventParser()
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// Create a transaction that doesn't interact with a DEX
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randomAddr := common.HexToAddress("0x1234567890123456789012345678901234567890")
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tx := types.NewTransaction(0, randomAddr, big.NewInt(0), 0, big.NewInt(0), nil)
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blockNumber := uint64(12345)
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timestamp := uint64(1620000000)
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// Parse the transaction
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events, err := parser.ParseTransaction(tx, blockNumber, timestamp)
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assert.NoError(t, err)
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assert.Len(t, events, 0)
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}
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