-
Notifications
You must be signed in to change notification settings - Fork 21
/
testengine.py
452 lines (363 loc) · 18.2 KB
/
testengine.py
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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
from os import path
from typing import Any, Dict, List, Optional, Tuple, Union
from boa3.internal import constants
from boa3.internal.neo.smart_contract.VoidType import VoidType
from boa3.internal.neo.smart_contract.notification import Notification
from boa3.internal.neo.utils import contract_parameter_to_json, stack_item_from_json
from boa3.internal.neo.vm.type.Integer import Integer
from boa3.internal.neo.vm.type.StackItem import StackItemType
from boa3.internal.neo.vm.type.String import String
from boa3.internal.neo3.core.types import UInt160
from boa3.internal.neo3.vm import VMState, vmstate
from boa3_test.tests.test_classes.block import Block
from boa3_test.tests.test_classes.contractcollection import ContractCollection
from boa3_test.tests.test_classes.signer import Signer
from boa3_test.tests.test_classes.storage import Storage
from boa3_test.tests.test_classes.testcontract import TestContract
from boa3_test.tests.test_classes.transaction import Transaction
from boa3_test.tests.test_classes.transactionattribute import oracleresponse
from boa3_test.tests.test_classes.witnessscope import WitnessScope
class TestEngine:
def __init__(self, root_path: Optional[str] = None):
if root_path is None:
from boa3.internal import env
root_path = env.TEST_ENGINE_DIRECTORY
engine_path = '{0}/Neo.TestEngine.dll'.format(root_path)
if not path.exists(engine_path):
raise FileNotFoundError(
"File at {0} was not found.\n"
"Visit the docs or the README file and search for 'TestEngine' to correctly install it."
.format(engine_path))
self._test_engine_path = engine_path
self._vm_state: VMState = VMState.NONE
self._executed_script_hash: Optional[UInt160] = None
self._calling_script_hash: Optional[UInt160] = None
self._gas_consumed: int = 0
self._result_stack: List[Any] = []
self._storage: Storage = Storage()
self._notifications: List[Notification] = []
self._height: int = 0
self._blocks: List[Block] = []
self._current_tx: Optional[Transaction] = None
self._accounts: List[Signer] = []
self._contract_paths: ContractCollection = ContractCollection()
self._error_message: Optional[str] = None
self._neo_balance_prefix: bytes = b'\x14'
@property
def error(self) -> Optional[str]:
return self._error_message
@property
def vm_state(self) -> VMState:
return self._vm_state
@property
def gas_consumed(self) -> int:
return self._gas_consumed
@property
def executed_script_hash(self) -> Optional[UInt160]:
return self._executed_script_hash
@property
def calling_script_hash(self) -> Optional[UInt160]:
return self._calling_script_hash
@property
def result_stack(self) -> List[Any]:
return self._result_stack.copy()
@property
def notifications(self) -> List[Notification]:
return self._notifications.copy()
def get_events(self, event_name: str = None, origin: Union[UInt160, bytes] = None) -> List[Notification]:
if origin is None:
return [n for n in self._notifications if n.name == event_name or event_name is None]
else:
origin_bytes = origin.to_array() if isinstance(origin, UInt160) else bytes(origin)
return [n for n in self._notifications if ((n.name == event_name or event_name is None)
and n.origin == origin_bytes)]
@property
def storage(self) -> Storage:
return self._storage.copy()
def storage_get(self, key: Union[str, bytes], contract_path: str) -> Any:
if isinstance(key, str):
key = String(key).to_bytes()
if contract_path.endswith('.py'):
contract_path = contract_path.replace('.py', '.nef')
if contract_path not in self.contracts:
return None
contract_id = self._get_contract_id(contract_path)
storage_key = Storage.build_key(key, contract_id)
if storage_key in self._storage:
return self._storage[storage_key]
else:
return None
def storage_put(self, key: Union[str, bytes], value: Any, contract_path: str):
if isinstance(key, str):
key = String(key).to_bytes()
if contract_path.endswith('.py'):
contract_path = contract_path.replace('.py', '.nef')
if contract_path in self.contracts:
contract_id = self._get_contract_id(contract_path)
storage_key = Storage.build_key(key, contract_id)
self._storage[storage_key] = value
def set_storage(self, storage: Dict[Tuple[Union[str, bytes], str], Any]):
self._storage.clear(delete_deploy_data=False)
for (key, contract_path), value in storage.items():
self.storage_put(key, value, contract_path)
def storage_delete(self, key: Union[str, bytes], contract_path: str):
if isinstance(key, str):
key = String(key).to_bytes()
if contract_path.endswith('.py'):
contract_path = contract_path.replace('.py', '.nef')
if contract_path not in self.contracts:
return None
contract_id = self._get_contract_id(contract_path)
storage_key = Storage.build_key(key, contract_id)
if storage_key in self._storage:
self._storage.pop(key)
def add_neo(self, script_hash: bytes, amount: int) -> bool:
return self._storage.add_token(constants.NEO_SCRIPT, script_hash, amount)
def add_gas(self, script_hash: bytes, amount: int) -> bool:
return self._storage.add_token(constants.GAS_SCRIPT, script_hash, amount)
def set_calling_script_hash(self, calling_hash: bytes) -> bool:
if len(calling_hash) != constants.SIZE_OF_INT160:
return False
calling_script_hash = UInt160(calling_hash)
account = Signer(calling_script_hash, WitnessScope.CalledByEntry)
if account in self._accounts:
account_index = self._accounts.index(account)
if account_index != 0: # the calling hash should be the first signer
account = self._accounts.pop(account_index)
account.add_scope(WitnessScope.CalledByEntry)
self._accounts.insert(0, account)
self._calling_script_hash = calling_script_hash
def add_signer_account(self, account_address: bytes, account_scope: WitnessScope = WitnessScope.CalledByEntry,
permissions: list = None):
account = Signer(UInt160(account_address), account_scope)
if permissions is None:
permissions = []
account.set_permissions(permissions)
if account not in self._accounts:
self._accounts.append(account)
@property
def contracts(self) -> List[str]:
return [contract.path for contract in self._contract_paths]
def add_contract(self, contract_nef_path: str):
if contract_nef_path.endswith('.nef') and contract_nef_path not in self._contract_paths:
manifest_path = contract_nef_path.replace('.nef', '.manifest.json')
if not path.exists(manifest_path):
raise FileNotFoundError(manifest_path)
self._contract_paths.append(TestContract(contract_nef_path, manifest_path))
def remove_contract(self, contract_index_or_path: Union[int, str]):
if isinstance(contract_index_or_path, str):
contracts = self.contracts
if contract_index_or_path in contracts:
index = contracts.index(contract_index_or_path)
else:
index = -1
else:
index = contract_index_or_path
if 0 <= index < len(self._contract_paths):
return self._contract_paths.pop(index)
def _get_contract_id(self, contract_path: str) -> int:
contracts = self.contracts
if path.isfile(contract_path) and contract_path not in contracts:
with open(contract_path, mode='rb') as nef:
from boa3.internal.neo.contracts.neffile import NefFile
script_hash = NefFile.deserialize(nef.read()).script_hash
return self._storage.get_contract_id(script_hash)
if contract_path in contracts:
return contracts.index(contract_path) + 1
return -1
@property
def height(self) -> int:
return self.current_block.index if self.current_block is not None else self._height
@property
def blocks(self) -> List[Block]:
return sorted(self._blocks, key=lambda block: block.index)
@property
def current_block(self) -> Optional[Block]:
return self.blocks[-1] if len(self._blocks) > 0 else None
def increase_block(self, new_height: int = None) -> Block:
if self.current_block is None:
if new_height is None or new_height <= self._height:
new_height = self._height
else:
if new_height is None or new_height <= self._height:
new_height = self.height + 1
self._height = new_height
if new_height < 1:
# don't use height 0 because this is the genesis block index
new_height = 1
new_block = Block(new_height)
self.add_block(new_block)
return new_block
def add_block(self, block: Block) -> bool:
success = len(list(filter(lambda b: b.index == block.index, self._blocks))) == 0
if success:
self._blocks.append(block)
return success
def get_transactions(self) -> List[Transaction]:
txs = []
for block in self._blocks:
txs.extend(block.get_transactions())
return txs
def add_transaction(self, *transaction: Transaction):
if self.current_block is None:
self.increase_block()
current_block = self.current_block
for tx in transaction:
current_block.add_transaction(tx)
def run_oracle_response(self, request_id: int, oracle_response: oracleresponse.OracleResponseCode,
result: bytes, reset_engine: bool = False,
rollback_on_fault: bool = True) -> Any:
request_ids = [x.arguments[0] if isinstance(x.arguments, (tuple, list)) and len(x.arguments) > 0
else x.arguments
for x in self.get_events('OracleRequest', constants.ORACLE_SCRIPT)]
assert request_id in request_ids, 'Request ID not found'
self._current_tx = Transaction(b'')
self._current_tx.add_attribute(oracleresponse.OracleResponse(request_id, oracle_response, result))
return self.run(UInt160(constants.ORACLE_SCRIPT), 'finish',
reset_engine=reset_engine,
rollback_on_fault=rollback_on_fault)
def run(self, contract_id: Union[str, UInt160], method: str, *arguments: Any, reset_engine: bool = False,
rollback_on_fault: bool = True) -> Any:
import json
import subprocess
if isinstance(contract_id, str) and contract_id not in self.contracts:
self.add_contract(contract_id)
# build an UInt160 value if the contract_id is not a path
if isinstance(contract_id, bytes) and not isinstance(contract_id, UInt160):
contract_id = UInt160(contract_id)
test_engine_args = self.to_json(contract_id, method, *arguments)
param_json = json.dumps(test_engine_args, separators=(',', ':'))
try:
process = subprocess.Popen(['dotnet', self._test_engine_path, param_json],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True)
except BaseException:
json_path = '{0}/test-engine-test.json'.format(path.curdir)
with open(json_path, 'wb+') as json_file:
json_file.write(String(param_json).to_bytes())
json_file.close()
process = subprocess.Popen(['dotnet', self._test_engine_path, json_path],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True)
stdout, stderr = process.communicate()
if reset_engine:
self.reset_engine()
else:
self.reset_state()
stdout = stdout.splitlines()[-1]
try:
result = json.loads(stdout)
self._error_message = result['error'] if 'error' in result else None
if 'vmstate' in result:
self._vm_state = vmstate.get_vm_state(result['vmstate'])
if 'executedscripthash' in result:
try:
self._executed_script_hash = UInt160.from_string(result['executedscripthash'])
except BaseException:
self._executed_script_hash = None
if 'callingscripthash' in result:
try:
calling_script_hash = UInt160.from_string(result['callingscripthash'])
except BaseException:
calling_script_hash = None
self._calling_script_hash = calling_script_hash
if 'gasconsumed' in result:
self._gas_consumed = int(result['gasconsumed'])
if 'resultstack' in result:
if isinstance(result['resultstack'], list):
self._result_stack = [stack_item_from_json(value) for value in result['resultstack']]
else:
self._result_stack = [stack_item_from_json(result['resultstack'])]
if self._vm_state is VMState.HALT or not rollback_on_fault:
if 'notifications' in result:
json_storage = result['notifications']
if not isinstance(json_storage, list):
json_storage = [json_storage]
notifications = []
for n in json_storage:
new = Notification.from_json(n)
if new is not None:
notifications.append(new)
self._notifications.extend(notifications)
if 'storage' in result:
json_storage = result['storage']
self._storage = Storage.from_json(json_storage)
for contract in self._contract_paths.copy():
if (not isinstance(contract, TestContract)
or contract.script_hash is None
or not self._storage.has_contract(contract.script_hash)):
self.remove_contract(contract.path)
if 'currentblock' in result:
current_block = Block.from_json(result['currentblock'])
existing_block = next((block for block in self._blocks if block.index == current_block.index), None)
if existing_block is not None:
self._blocks.remove(existing_block)
self._blocks.append(current_block)
if 'transaction' in result and self._vm_state is VMState.HALT:
block = self.current_block
if block is None:
block = self.increase_block(self.height)
tx = Transaction.from_json(result['transaction'])
block.add_transaction(tx)
except BaseException as e:
self._error_message = str(e)
if len(self._result_stack) > 0:
return self._filter_result(self._result_stack[0], method, contract_id)
return VoidType
def reset_state(self):
self._vm_state = VMState.NONE
self._executed_script_hash = None
self._calling_script_hash = None
self._gas_consumed = 0
self._result_stack = []
self._accounts = []
self._current_tx = None
self._error_message = None
def reset_engine(self):
self.reset_state()
self._notifications.clear()
self._storage.clear()
self._contract_paths.clear()
def _filter_result(self, value: Any, called_method: str, contract_id=None):
if contract_id is None:
contract_id = self._executed_script_hash
called_contract = self._contract_paths[contract_id]
if not isinstance(called_contract, TestContract):
return value
converted_value = value
expected_return_type = called_contract.get_method_return_type(called_method)
if expected_return_type is StackItemType.Boolean:
converted_value = bool(value)
elif expected_return_type is StackItemType.Integer:
if isinstance(value, str):
converted_value = String(value).to_bytes(min_length=1)
if isinstance(converted_value, bytes):
converted_value = Integer.from_bytes(value)
else:
try:
converted_value = int(value)
except BaseException:
converted_value = value
elif expected_return_type is StackItemType.ByteString:
if isinstance(value, int):
converted_value = Integer(value).to_byte_array(min_length=1)
return converted_value
def to_json(self, contract_id: Union[str, UInt160], method: str, *args: Any) -> Dict[str, Any]:
json = {
'path': contract_id if isinstance(contract_id, str) else '',
'scripthash': str(contract_id) if not isinstance(contract_id, str) else None,
'method': method,
'arguments': [contract_parameter_to_json(x) for x in args],
'storage': self._storage.to_json(),
'contracts': [{'nef': contract_path} for contract_path in self.contracts],
'signeraccounts': [address.to_json() for address in self._accounts],
'callingscripthash': (self._calling_script_hash if self._calling_script_hash is None
else str(self._calling_script_hash)),
'height': self.height,
'blocks': [block.to_json() for block in self.blocks]
}
if isinstance(self._current_tx, Transaction):
json['currenttx'] = self._current_tx.to_json()
return json