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Ava Chow ff0eac055f
Merge bitcoin/bitcoin#29283: test: ensure output is large enough to pay for its fees 
3bfc5bd36e test: ensure output is large enough to pay for its fees (stickies-v)

Pull request description:

  Fixes a (rare) intermittency issue in wallet_import_rescan.py

  Since we [use](03752444cd/test/functional/wallet_import_rescan.py (L296)) `subtract_fee_from_outputs=[0]` in the `send` command, the output amount must at least be as large as the fee we're paying.

  Example in CI: https://api.cirrus-ci.com/v1/task/6107972259020800/logs/ci.log

  ```
  2024-01-18T22:16:12.383000Z TestFramework (INFO): Test that the mempool is rescanned as well if the rescan parameter is set to true
  2024-01-18T22:16:20.187000Z TestFramework (ERROR): JSONRPC error
  Traceback (most recent call last):
    File "/ci_container_base/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/test/functional/test_framework/test_framework.py", line 131, in main
      self.run_test()
    File "/ci_container_base/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/test/functional/wallet_import_rescan.py", line 292, in run_test
      child = self.nodes[1].send(
    File "/ci_container_base/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/test/functional/test_framework/coverage.py", line 50, in __call__
      return_val = self.auth_service_proxy_instance.__call__(*args, **kwargs)
    File "/ci_container_base/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/test/functional/test_framework/authproxy.py", line 129, in __call__
      raise JSONRPCException(response['error'], status)
  test_framework.authproxy.JSONRPCException: The transaction amount is too small to pay the fee (-4)
  ```

  Can be reproduced locally by forcing usage of the lowest possible value produced by `get_rand_amount()` ([thanks furszy](https://github.com/bitcoin/bitcoin/pull/29283#pullrequestreview-1832956095)):

  <details>
  <summary>git diff on 5f3a0574c4</summary>

  ```diff
  diff --git a/test/functional/wallet_import_rescan.py b/test/functional/wallet_import_rescan.py
  index 7f01d23941..925849d5c0 100755
  --- a/test/functional/wallet_import_rescan.py
  +++ b/test/functional/wallet_import_rescan.py
  @@ -270,7 +270,7 @@ class ImportRescanTest(BitcoinTestFramework):
                   address_type=variant.address_type.value,
               ))
               variant.key = self.nodes[1].dumpprivkey(variant.address["address"])
  -            variant.initial_amount = get_rand_amount() * 2
  +            variant.initial_amount = Decimal(str(round(AMOUNT_DUST, 8))) * 2
               variant.initial_txid = self.nodes[0].sendtoaddress(variant.address["address"], variant.initial_amount)
               variant.confirmation_height = 0
               variant.timestamp = timestamp

  ```
  </details>

ACKs for top commit:
  achow101:
    ACK 3bfc5bd36e
  glozow:
    utACK 3bfc5bd36e, didn't experience this issue but in theory a minimum of `AMOUNT_DUST` could be too low to pay the fees
  furszy:
    utACK 3bfc5bd36

Tree-SHA512: 821ab94a510772e90528b2cef368bbf70309d8fd1dcda53dce75dd1bf91622358e80fea4d9fc68249b9d598892306c66f6c843b4a6855a9f9a9175f7b41109c6
2024-01-26 18:33:46 -05:00
.github ci: Update cache action 2024-01-25 11:55:57 +00:00
.tx qt: Bump Transifex slug for 26.x 2023-09-01 07:49:31 +01:00
build-aux/m4 Revert "build: Fix undefined reference to __mulodi4" 2024-01-09 15:38:57 +01:00
build_msvc Merge bitcoin/bitcoin#28921: multiprocess: Add basic type conversion hooks 2024-01-23 16:22:29 -05:00
ci ci: cleanup C*FLAG usage in Valgrind jobs 2024-01-16 09:51:19 +00:00
contrib Merge bitcoin/bitcoin#29251: contrib: Update clang-format-diff 2024-01-17 16:08:10 +00:00
depends depends: Do not override CFLAGS when building SQLite with DEBUG=1 2024-01-25 12:25:27 +00:00
doc doc: Add missing backtick in developer notes logging section 2024-01-12 16:26:17 +01:00
share depends: Bump MacOS minimum runtime requirement to 11.0 2023-06-22 15:28:47 +00:00
src Merge bitcoin-core/gui#789: Avoid non-self-contained Windows header 2024-01-26 20:40:46 +00:00
test Merge bitcoin/bitcoin#29283: test: ensure output is large enough to pay for its fees 2024-01-26 18:33:46 -05:00
.cirrus.yml ci: Rename tasks (previous releases, macOS cross) 2024-01-11 17:32:43 +01:00
.editorconfig ci: Drop AppVeyor CI integration 2021-09-07 06:12:53 +03:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore build: produce a .zip for macOS distribution 2023-09-15 13:47:50 +01:00
.python-version Bump .python-version from 3.9.17 to 3.9.18 2023-10-24 18:51:24 +02:00
.style.yapf Update .style.yapf 2023-06-01 23:35:10 +05:30
autogen.sh build: make sure we can overwrite config.{guess,sub} 2023-06-13 14:58:43 +02:00
configure.ac Merge bitcoin/bitcoin#28875: build: Pass sanitize flags to instrument libsecp256k1 code 2024-01-26 11:31:34 +00:00
CONTRIBUTING.md Squashed 'src/secp256k1/' changes from 199d27cea3..efe85c70a2 2024-01-04 14:40:28 +00:00
COPYING doc: upgrade Bitcoin Core license to 2024 2024-01-10 16:29:01 -06:00
INSTALL.md doc: Added hyperlink for doc/build 2021-09-09 19:53:12 +05:30
libbitcoinconsensus.pc.in build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 2019-11-19 15:03:44 +01:00
Makefile.am Squashed 'src/secp256k1/' changes from 199d27cea3..efe85c70a2 2024-01-04 14:40:28 +00:00
README.md Squashed 'src/secp256k1/' changes from 199d27cea3..efe85c70a2 2024-01-04 14:40:28 +00:00
SECURITY.md Update security.md contact for achow101 2023-12-14 18:14:54 -05:00

README.md

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 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. 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.