2353920662
4455949d6f0218b40d33d7fe6de6555f8f62192f Make test DoS_mapOrphans deterministic (David Reikher) Pull request description: This pull request proposes a solution to make the test `DoS_mapOrphans` in denialofservice_tests.cpp have deterministic coverage. The `RandomOrphan` function in denialofservice_tests.cpp and the implicitly called function `ecdsa_signature_parse_der_lax` in pubkey.cpp were causing the non-deterministic test coverage. In the former, if a random orphan was selected the index of which is bigger than the max. orphan index in `mapOrphanTransactions`, the last orphan was returned from `RandomOrphan`. If the random number generated was never large enough, this condition would not be fulfilled and the corresponding branch wouldn't run. The proposed solution is to force one of the 50 dependant orphans to depend on the last orphan in `mapOrphanTransactions` using the newly introduced function `OrphanByIndex` (and passing it a large uint256), forcing this branch to run at least once. In the latter, if values for ECDSA `R` or `S` (or both) had no leading zeros, some code would not be executed. The solution was to find a constant signature that would be comprised of `R` and `S` values with leading zeros and calling `CPubKey::Verify` at the end of the test with this signature forcing this code to always run at least once at the end even if it hadn't throughout the test. To test that the coverage is (at least highly likely) deterministic, I ran `contrib/devtools/test_deterministic_coverage.sh denialofservice_tests/DoS_mapOrphans 1000` and the result was deterministic coverage across 1000 runs. Also - removed denialofservice_tests test entry from the list of non-deterministic tests in the coverage script. ACKs for top commit: MarcoFalke: ACK 4455949d6f0218b40d33d7fe6de6555f8f62192f Tree-SHA512: 987eb1f94b80d5bec4d4944e91ef43b9b8603055750362d4b4665b7f011be27045808aa9f4c6ccf8ae009b61405f9a1b8671d65a843c3328e5b8acce1f1c00a6 |
||
---|---|---|
.github | ||
.tx | ||
build-aux/m4 | ||
ci | ||
contrib | ||
depends | ||
doc | ||
share | ||
src | ||
test | ||
.cirrus.yml | ||
.dockerignore | ||
.editorconfig | ||
.fuzzbuzz.yml | ||
.gitattributes | ||
.gitignore | ||
.gitlab-ci.yml | ||
.python-version | ||
.style.yapf | ||
.travis.yml | ||
autogen.sh | ||
CMakeLists.txt | ||
configure.ac | ||
CONTRIBUTING.md | ||
COPYING | ||
INSTALL.md | ||
libdashconsensus.pc.in | ||
Makefile.am | ||
README.md | ||
release-notes-17743.md | ||
SECURITY.md |
Dash Core staging tree 18.0
CI | master | develop |
---|---|---|
Gitlab |
What is Dash?
Dash is an experimental digital currency that enables instant, private payments to anyone, anywhere in the world. Dash uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Dash Core is the name of the open source software which enables the use of this currency.
Pre-Built Binary
For more information, as well as an immediately usable, binary version of the Dash Core software, see https://www.dash.org/downloads/.
License
Dash Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.
Development Process
The master
branch is meant to be stable. Development is normally done in separate branches.
Tags are created to indicate new official,
stable release versions of Dash Core.
The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.
Testing
Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.
Automated Testing
Developers are strongly encouraged to write unit tests for new code, and to
submit new unit tests for old code. Unit tests can be compiled and run
(assuming they weren't disabled in configure) with: make check
. Further details on running
and extending unit tests can be found in /src/test/README.md.
There are also regression and integration tests, written
in Python, that are run automatically on the build server.
These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py
The Travis CI system makes sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.
Manual Quality Assurance (QA) Testing
Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.
Translations
Changes to translations as well as new translations can be submitted to Dash Core's Transifex page.
Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.
Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.
Translators should also follow the forum.