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benchmark
code-generation
transaction-code-generation
execution-grounded-evaluation
blockchain
evm
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edbc049 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | """
Contract Payable Fallback Validator
Validates that BNB is sent directly to a contract (triggering fallback/receive)
"""
from typing import Dict, Any
class ContractPayableFallbackValidator:
"""Validator for payable fallback/receive function calls"""
def __init__(self, contract_address: str, amount: float):
"""
Initialize validator
Args:
contract_address: Contract address with payable fallback/receive
amount: Expected BNB amount to send
"""
self.expected_contract = contract_address.lower()
self.expected_amount = amount
self.max_score = 100
def validate(
self,
tx: Dict[str, Any],
receipt: Dict[str, Any],
state_before: Dict[str, Any],
state_after: Dict[str, Any]
) -> Dict[str, Any]:
"""
Validate the payable fallback transaction
Args:
tx: Transaction object
receipt: Transaction receipt
state_before: Blockchain state before transaction
state_after: Blockchain state after transaction
Returns:
Validation results including score and details
"""
checks = []
score = 0
details = {}
# Check 1: Transaction success (30 points)
tx_success = receipt.get('status') == 1
if tx_success:
score += 30
checks.append({
'name': 'Transaction Success',
'passed': True,
'points': 30,
'message': 'Transaction executed successfully'
})
else:
checks.append({
'name': 'Transaction Success',
'passed': False,
'points': 0,
'message': f"Transaction failed with status: {receipt.get('status')}"
})
return {
'score': score,
'max_score': self.max_score,
'passed': False,
'checks': checks,
'details': details
}
# Check 2: Contract address correct (20 points)
actual_to = tx.get('to', '').lower()
contract_correct = actual_to == self.expected_contract
if contract_correct:
score += 20
checks.append({
'name': 'Contract Address',
'passed': True,
'points': 20,
'message': f'Correct contract: {self.expected_contract}'
})
else:
checks.append({
'name': 'Contract Address',
'passed': False,
'points': 0,
'message': f'Expected: {self.expected_contract}, Got: {actual_to}'
})
details['expected_contract'] = self.expected_contract
details['actual_to'] = actual_to
# Check 3: Correct BNB amount sent (20 points)
actual_value = int(tx.get('value', 0))
expected_value_wei = int(self.expected_amount * 10**18)
# Allow 10 wei tolerance for floating point conversion
value_correct = abs(actual_value - expected_value_wei) <= 10
if value_correct:
score += 20
checks.append({
'name': 'BNB Amount',
'passed': True,
'points': 20,
'message': f'Correct amount: {self.expected_amount} BNB'
})
else:
actual_bnb = actual_value / 10**18
checks.append({
'name': 'BNB Amount',
'passed': False,
'points': 0,
'message': f'Expected: {self.expected_amount} BNB, Got: {actual_bnb} BNB'
})
details['expected_amount'] = self.expected_amount
details['actual_value_wei'] = actual_value
details['expected_value_wei'] = expected_value_wei
# Check 4: Empty data field (15 points)
# Data should be empty, '0x', or not present
tx_data = tx.get('data', '0x')
# Normalize empty data
is_empty = (
tx_data is None or
tx_data == '' or
tx_data == '0x' or
(isinstance(tx_data, bytes) and len(tx_data) == 0)
)
if is_empty:
score += 15
checks.append({
'name': 'Empty Data Field',
'passed': True,
'points': 15,
'message': 'Correct: No function call data (triggers fallback/receive)'
})
else:
checks.append({
'name': 'Empty Data Field',
'passed': False,
'points': 0,
'message': f'Data field should be empty, got: {tx_data}'
})
details['data_field'] = str(tx_data) if tx_data else 'empty'
# Check 5: Contract balance increased (15 points)
target_balance_before = state_before.get('target_balance', 0)
target_balance_after = state_after.get('target_balance', 0)
# Convert wei to BNB for comparison
balance_increase_wei = target_balance_after - target_balance_before
balance_increase = balance_increase_wei / 10**18 if isinstance(balance_increase_wei, int) else balance_increase_wei
expected_increase = self.expected_amount
# Allow small tolerance for gas and rounding
balance_correct = abs(balance_increase - expected_increase) < 0.0001
if balance_correct:
score += 15
checks.append({
'name': 'Contract Balance Increase',
'passed': True,
'points': 15,
'message': f'Contract balance increased by {balance_increase:.6f} BNB'
})
else:
checks.append({
'name': 'Contract Balance Increase',
'passed': False,
'points': 0,
'message': f'Expected increase: {expected_increase} BNB, Actual: {balance_increase:.6f} BNB'
})
details['target_balance_before'] = target_balance_before
details['target_balance_after'] = target_balance_after
details['balance_increase_wei'] = balance_increase_wei
details['balance_increase_bnb'] = balance_increase
# Determine if all checks passed
all_passed = all(check['passed'] for check in checks)
return {
'score': score,
'max_score': self.max_score,
'passed': all_passed,
'checks': checks,
'details': details
}
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