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feat: set code #262

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feat: set code #262

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4 changes: 4 additions & 0 deletions eth_tester/backends/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,10 @@ def get_balance(self, account, block_number=None):
def get_code(self, account, block_number=None):
raise NotImplementedError("Must be implemented by subclasses")

@abstractmethod
def set_code(self, account, code):
raise NotImplementedError("Must be implemented by subclasses")

#
# Transactions
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6 changes: 6 additions & 0 deletions eth_tester/backends/mock/main.py
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Expand Up @@ -284,6 +284,12 @@ def get_code(self, account, block_number=None):
except KeyError:
return b""

def set_code(self, account, code):
if account in self.account_state_lookup:
self.account_state_lookup[account]["code"] = code
else:
self.account_state_lookup[account] = {"code": code}

#
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4 changes: 4 additions & 0 deletions eth_tester/backends/pyevm/main.py
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Expand Up @@ -538,6 +538,10 @@ def get_code(self, account, block_number="latest"):
vm = _get_vm_for_block_number(self.chain, block_number)
return vm.state.get_code(account)

def set_code(self, account, code):
vm = _get_vm_for_block_number(self.chain, block_number)
return vm.state.set_code(account, code)

def get_base_fee(self, block_number="latest"):
vm = _get_vm_for_block_number(self.chain, block_number)
return vm.state.base_fee
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5 changes: 5 additions & 0 deletions eth_tester/main.py
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Expand Up @@ -254,6 +254,11 @@ def get_code(self, account, block_number="latest"):
code = self.normalizer.normalize_outbound_code(raw_code)
return code

def set_code(self, account, code):
self.validator.validate_inbound_account(account)
raw_account = self.normalizer.normalize_inbound_account(account)
self.backend.set_code(raw_account, code)
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i think this might be too irregular of a state to work, i have tried .persist() but cant get things to really persist


def get_nonce(self, account, block_number="latest"):
self.validator.validate_inbound_account(account)
self.validator.validate_inbound_block_number(block_number)
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5 changes: 5 additions & 0 deletions eth_tester/utils/backend_testing.py
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Expand Up @@ -231,6 +231,11 @@ def test_get_code_account_without_code(self, eth_tester):
code = eth_tester.get_code(BURN_ADDRESS)
assert code == "0x"

def test_set_code(self, eth_tester):
eth_tester.set_code(BURN_ADDRESS, "0x123")
code = eth_tester.get_code(BURN_ADDRESS)
assert code == "0x123"

def test_get_nonce(self, eth_tester):
for account in eth_tester.get_accounts():
nonce = eth_tester.get_nonce(account)
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