a3586d5920
81137c60fe6234569e1c5e6760f3a6f016956944 test: Add new ChainTestingSetup and use it (Carl Dong) 7e9e7fe56734d729ed7de39e880577b135dfd368 qt/test: [FIX] Add forgotten Context setting in RPCNestedTests (Carl Dong) Pull request description: This is part 1/n of the effort to [de-globalize `ChainstateManager`](https://github.com/bitcoin/bitcoin/pull/20158) Reviewers: Looking for tested/Code-Review/plain-ACKs ### Context In many of our tests, we manually instantiate `NodeContext`s or `ChainstateManager`s in the test code, which is error prone. Instead, we should create or use existing references because: 1. Before we [de-globalize `ChainstateManager`](https://github.com/bitcoin/bitcoin/pull/20158), much of our code still acts on `g_chainman` (our global `ChainstateManager`), sometimes even when you're calling a method on a specific instance of `ChainstateManager`! This means that we may act on two instances of `ChainstateManager`, which is most likely not what we want. 2. Using existing references (initialized by the `{Basic,}TestingSetup` constructors) means that you're acting on objects which are properly initialized, instead of "just initialized enough for this dang test to pass". Also, they're already there! It's free! 3. By acting on the right object, we also allow the review-only assertions in future commits of [de-globalize `ChainstateManager`](https://github.com/bitcoin/bitcoin/pull/20158) to work and demonstrate correctness. Some more detailed debugging notes can be found in the first commit, reproduced below: ``` Previously, the validation_chainstatemanager_tests test suite instantiated its own duplicate ChainstateManager on which tests were performed. This wasn't a problem for the specific actions performed in that suite. However, the existence of this duplicate ChainstateManager and the fact that many of our validation static functions reach for g_chainman, ::Chain(state|)Active means we may end up acting on two different CChainStates should we write more extensive tests in the future. This change adds a new ChainTestingSetup which performs all initialization previously done by TestingSetup except: 1. Mempool sanity check frequency setting 2. ChainState initialization 3. Genesis Activation 4. {Ban,Conn,Peer}Man initialization Means that we will no longer need to initialize a duplicate ChainstateManger in order to test the initialization codepaths of CChainState and ChainstateManager. Lastly, this change has the additional benefit of allowing for review-only assertions meant to show correctness to work in future work de-globalizing g_chainman. In the test chainstatemanager_rebalance_caches, an additional LoadGenesisBlock call is added as MaybeReblanaceCaches eventually calls FlushBlockFile, which tries to access vinfoBlockFile[nLastBlockFile], which is out of bounds when LoadGenesisBlock hasn't been called yet. ----- Note for the future: In a previous version of this change, I put ChainTestingSetup between BasicTestingSetup and TestingSetup such that TestingSetup inherited from ChainTestingSetup. This was suboptimal, and showed how the class con/destructor inheritance structure we have for these TestingSetup classes is probably not the most suitable abstraction. In particular, for both TestingSetup and ChainTestingSetup, we need to stop the scheduler first before anything else. Otherwise classes depending on the scheduler may be referenced by the scheduler after said classes are freed. This means that there's no clear parallel between our teardown code and C++'s destructuring order for class hierarchies. Future work should strive to coalesce (as much as possible) test and non-test init codepaths and perhaps structure it in a more fail-proof way. ``` ACKs for top commit: MarcoFalke: ACK 81137c60fe looking excellent now 🐩 jnewbery: ACK 81137c60fe6234569e1c5e6760f3a6f016956944 ryanofsky: Code review ACK 81137c60fe6234569e1c5e6760f3a6f016956944. This change is simpler after the rebase because wallet & bench commits are dropped. Tree-SHA512: a8d84f08f2db6428b0b88449bdc814c9db35b7559156d536dfebd3225c2707dba65959e76d2152e3f8c96eacbf1e0b0000f745edf1e196deddb97ff1ef360953
Bitcoin Core integration/staging tree
What is Bitcoin?
Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.
For more information, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original whitepaper.
License
Bitcoin 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 regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be
completely stable. Tags are created
regularly from release branches to indicate new official, stable release versions of Bitcoin Core.
The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.
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 Bitcoin 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 subscribe to the mailing list.