nimbus-eth2/tests/helpers/math_helpers.nim

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v0.8.1 tests refactor (#326) * Introduce new mocking proc to replace: - makeFakeValidatorPrivKey - hackPrivKey - getNextBeaconProposerIndex - addBlock - makeBlock * Add comments on datastructure unsynced with the spec * Add merkle tree constructor and initial mocking for deposits (missing merkle proofs) * [Mock] Implement sparse merkle tree and merkle proof builder * [Mocking] Genesis deposits * Add compact_committees_roots init + mock genesis state * [Tests] Add first deposit test using the new mocking procedures * [Tests -deposits] add at and over 32 ETH deposit tests * [Tests - deposits] Add test for validator top-up * [Tests -deposits] Mention the TODO to test for invalid conditions * [Tests] Add stub to test "is_valid_genesis_state" * [Merkle proofs] Implement round-trip checks * Deactivate roundtrips test * SSZ - use EF convention for hash_tree_root / hashTreeRoot * [Tests - Attestation] Attestation mocking + initial test * Add mocking + 3 new tests for valid attestations + mention future invalid attestation tests * Add crosslinks test (1 failing to attestations in block being duplicated in state transition) * Single attestation crosslink test - workaround https://github.com/status-im/nim-beacon-chain/issues/361 * Add test for failed crosslink penalty * Rebase fixes + add refactored tests to test suite * justif-finalization helpers first batch * Add 234 finalization tests * Fix justif test, Rule I 234 finalization does not happen with sufficient support. (Also unittest check template does not fail properly in some cases) * Add tests for all finalization rules * Properly delete nim-byteutils following https://github.com/status-im/nim-beacon-chain/commit/c91727e7e5f9c7a95a634055e94e9d3bcb6cc41a#diff-7c3613dba5171cb6027c67835dd3b9d4 * use digest helper for deposit root
2019-08-28 12:07:00 +00:00
# beacon_chain
# Copyright (c) 2018-2019 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
func round_multiple_down*(x: uint64, n: uint64): uint64 {.inline.} =
## Round the input to the previous multiple of "n"
result = x - x mod n
func round_multiple_up*(x: uint64, n: uint64): uint64 {.inline.} =
## Round the input to the next multiple of "n"
result = ((x + n - 1) div n) * n