merge-script d184fc3ba4
Merge bitcoin/bitcoin#30571: test: [refactor] Use m_rng directly
948238a683b6c99f4e91114aa75680c6c2d73714 test: Remove FastRandomContext global (Ryan Ofsky)
fa0fe08eca48064b2a42789571fea017e455d820 scripted-diff: [test] Use g_rng/m_rng directly (MarcoFalke)
fa54cab4734f02422f28fdffc0f11e6d3d51b8f0 test: refactor: Accept any RandomNumberGenerator in RandMoney (MarcoFalke)
68f77dd21e4aaf4f09d36d6e5ddd7d260824b94b test: refactor: Pass rng parameters to test functions (Ryan Ofsky)
fa19af555dff6d6c722caf36319b158699d2aa95 test: refactor: Move g_insecure_rand_ctx.Reseed out of the helper that calls MakeRandDeterministicDANGEROUS (MarcoFalke)
3dc527f4602297ffcec3a578eadc480a620d01ec test: refactor: Give unit test functions access to test state (Ryan Ofsky)
fab023e177d7eaef73902869ae1c95693f1e268b test: refactor: Make unsigned promotion explicit (MarcoFalke)
fa2cb654eca8dd6ed89101cd6d199ba1de0b81e0 test: Add m_rng alias for the global random context (MarcoFalke)
fae7e3791c9ed8053166773fcfb583ad19d006dd test: Correct the random seed log on a prevector test failure (MarcoFalke)

Pull request description:

  This is mostly a style-cleanup for the tests' random generation:

  1) `g_insecure_rand_ctx` in the tests is problematic, because the name is a leftover when the generator was indeed insecure. However, now the generator is *deterministic*, because the seed is either passed in or printed (c.f. RANDOM_CTX_SEED). Stating that deterministic randomness is insecure in the tests seems redundant at best. Fix it by just using `m_rng` for the name.

  2) The global random context has many one-line aliases, such as `InsecureRand32`. This is problematic, because the same line of code may use the context directly and through a wrapper at the same time. For example in net_tests (see below). This inconsistency is harmless, but confusing. Fix it by just removing the one-line aliases.

  ```
  src/test/net_tests.cpp:        auto msg_data_1 = g_insecure_rand_ctx.randbytes<uint8_t>(InsecureRandRange(100000));
  ````

  3) The wrapper for randmoney has the same problem that the same unit test uses the context directly and through a wrapper at the same time. Also, it has a single type of Rng hardcoded. Fix it by accepting any type.

ACKs for top commit:
  hodlinator:
    ACK 948238a683b6c99f4e91114aa75680c6c2d73714
  ryanofsky:
    Code review ACK 948238a683b6c99f4e91114aa75680c6c2d73714. Only changes since last review were changing a comments a little bit.
  marcofleon:
    Code review ACK 948238a683b6c99f4e91114aa75680c6c2d73714. Only changes since my last review are the improvements in `prevector_tests`.

Tree-SHA512: 69c6b46a42cb743138ee8c87ff26a588dbe083e3efb3dca49b8a133ba5d3b09e8bf01c590ec7e121a7d77cb1fd7dcacd927a9ca139ac65e1f7c6d1ec46f93b57
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Bitcoin Core integration/staging tree

https://bitcoincore.org

For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.

What is Bitcoin Core?

Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built.

Further information about Bitcoin Core is available in the doc folder.

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 during the generation of the build system) with: ctest. 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. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The CI (Continuous Integration) systems make 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.

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