mirror of
https://github.com/status-im/nimbus-eth1.git
synced 2025-01-10 12:26:02 +00:00
4b5eada322
* move forks constants, rename errors * Move vm/utils to vm/interpreter/utils * initial opcodes refactoring * Add refactored Comparison & Bitwise Logic Operations * Add sha3 and address, simplify macro, support pop 0 * balance, origin, caller, callValue * fix gas copy opcodes gas costs, add callDataLoad/Size/Copy, CodeSize/Copy and gas price opcode * Update with 30s, 40s, 50s opcodes + impl of balance + stack improvement * add push, dup, swap, log, create and call operations * finish opcode implementation * Add the new dispatching logic * Pass the opcode test * Make test_vm_json compile * halt execution without exceptions for Return, Revert, selfdestruct (fix #62) * Properly catch and recover from EVM exceptions (stack underflow ...) * Fix byte op * Fix jump regressions * Update for latest devel, don't import old dispatch code as quasiBoolean macro is broken by latest devel * Fix sha3 regression on empty memory slice and until end of range slice * Fix padding / range error on expXY_success (gas computation left) * update logging procs * Add tracing - expXY_success is not a regression, sload stub was accidentally passing the test * Reuse the same stub as OO implementation * Delete previous opcode implementation * Delete object oriented fork code * Delete exceptions that were used as control flows * delete base.nim 🔥, yet another OO remnants * Delete opcode table * Enable omputed gotos and compile-time gas fees * Revert const gasCosts -> generates SIGSEGV * inline push, swap and dup opcodes * loggers are now template again, why does this pass new tests? * Trigger CI rebuild after rocksdb fix https://github.com/status-im/nim-rocksdb/pull/5 * Address review comment on "push" + VMTests in debug mode (not release) * Address review comment: don't tag fork by default, make opcode impl grepable * Static compilation fixes after rebasing * fix the initialization of the VM database * add a missing import * Deactivate balance and sload test following #59 * Reactivate stack check (deactivated in #59, necessary to pass tests) * Merge remaining opcodes implementation from #59 * Merge callDataLoad and codeCopy fixes, todo simplify see #67
71 lines
2.9 KiB
Nim
71 lines
2.9 KiB
Nim
# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import
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unittest, sequtils,
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eth_common/eth_types,
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../nimbus/[constants, errors, vm/memory]
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proc memory32: Memory =
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result = newMemory()
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result.extend(0, 32)
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proc memory128: Memory =
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result = newMemory()
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result.extend(0, 128)
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suite "memory":
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test "write":
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var mem = memory32()
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# Test that write creates 32byte string == value padded with zeros
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mem.write(startPos = 0, value = @[1.byte, 0.byte, 1.byte, 0.byte])
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check(mem.bytes == @[1.byte, 0.byte, 1.byte, 0.byte].concat(repeat(0.byte, 28)))
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# test "write rejects invalid position":
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# expect(ValidationError):
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# var mem = memory32()
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# mem.write(startPosition = -1.i256, size = 2.i256, value = @[1.byte, 0.byte])
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# expect(ValidationError):
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# TODO: work on 256
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# var mem = memory32()
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# echo "pow ", pow(2.i256, 255) - 1.i256
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# mem.write(startPosition = pow(2.i256, 256), size = 2.i256, value = @[1.byte, 0.byte])
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# test "write rejects invalid size":
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# # expect(ValidationError):
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# # var mem = memory32()
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# # mem.write(startPosition = 0.i256, size = -1.i256, value = @[1.byte, 0.byte])
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# #TODO deactivated because of no pow support in Stint: https://github.com/status-im/nim-stint/issues/37
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# expect(ValidationError):
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# var mem = memory32()
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# mem.write(startPosition = 0.u256, size = pow(2.u256, 256), value = @[1.byte, 0.byte])
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test "write rejects valyes beyond memory size":
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expect(ValidationError):
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var mem = memory128()
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mem.write(startPos = 128, value = @[1.byte, 0.byte, 1.byte, 0.byte])
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test "extends appropriately extends memory":
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var mem = newMemory()
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# Test extends to 32 byte array: 0 < (start_position + size) <= 32
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mem.extend(startPos = 0, size = 10)
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check(mem.bytes == repeat(0.byte, 32))
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# Test will extend past length if params require: 32 < (start_position + size) <= 64
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mem.extend(startPos = 28, size = 32)
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check(mem.bytes == repeat(0.byte, 64))
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# Test won't extend past length unless params require: 32 < (start_position + size) <= 64
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mem.extend(startPos = 48, size = 10)
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check(mem.bytes == repeat(0.byte, 64))
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test "read returns correct bytes":
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var mem = memory32()
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mem.write(startPos = 5, value = @[1.byte, 0.byte, 1.byte, 0.byte])
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check(mem.read(startPos = 5, size = 4) == @[1.byte, 0.byte, 1.byte, 0.byte])
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check(mem.read(startPos = 6, size = 4) == @[0.byte, 1.byte, 0.byte, 0.byte])
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check(mem.read(startPos = 1, size = 3) == @[0.byte, 0.byte, 0.byte])
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