fanquake a55904a80c
Merge bitcoin/bitcoin#21866: [Bundle 7/7] validation: Farewell, global Chainstate!
6f994882deafe62e97f0a889d8bdb8c96dcf913d validation: Farewell, global Chainstate! (Carl Dong)
972c5166ee685447a6d4bf5e501b07a0871fba85 qt/test: Reset chainman in ~ChainstateManager instead (Carl Dong)
6c3b5dc0c13c3ac8c6e86298f924abe99d8d6bd1 scripted-diff: tree-wide: Remove all review-only assertions (Carl Dong)
3e82abb8dd7e21ec918966105648be7ae077fd8c tree-wide: Remove stray review-only assertion (Carl Dong)
f323248aba5088c9630e5cdfe5ce980f21633fe8 qt/test: Use existing chainman in ::TestGUI (can be scripted-diff) (Carl Dong)
6c15de129cd645bf0547cb184003fae131b95b83 scripted-diff: wallet/test: Use existing chainman (Carl Dong)
ee0ab1e959e0e75e04d87fabae8334ad4656f3e5 fuzz: Initialize a TestingSetup for test_one_input (Carl Dong)
0d61634c066a7102d539e85e2b1a4ca15be9660a scripted-diff: test: Use existing chainman in unit tests (Carl Dong)
e197076219e986ede6cf924e0ea36bd723503b2d test: Pass in CoinsTip to ValidateCheckInputsForAllFlags (Carl Dong)
4d99b61014ba26eb1f3713df5528d2804edff165 test/miner_tests: Pass in chain tip to CreateBlockIndex (Carl Dong)
f0dd5e6bb4b16e69d35b648b7ef973a732229873 test/util: Use existing chainman in ::PrepareBlock (Carl Dong)
464c313e304cef04a82e14f736e3c44ed5604a4e init: Use existing chainman (Carl Dong)

Pull request description:

  Based on:  #21767

  à la Mr. Sandman
  ```
  Mr. Chainman, bring me a tip (bung, bung, bung, bung)
  Make it the most work that I've ever seen (bung, bung, bung, bung)
  Rewind old tip till we're at the fork point (bung, bung, bung, bung)
  Then tell it that it's time to call Con-nectTip

  Chainman, I'm so alone (bung, bung, bung, bung)
  No local objects to call my own (bung, bung, bung, bung)
  Please make sure I have a ref
  Mr. Chainman, bring me a tip!
  ```

  This is the last bundle in the #20158 series. Thanks everyone for their diligent review.
  I would like to call attention to https://github.com/bitcoin/bitcoin/issues/21766, where a few leftover improvements were collated.

  - Remove globals:
    - `ChainstateManager g_chainman`
    - `CChainState& ChainstateActive()`
    - `CChain& ChainActive()`
  - Remove all review-only assertions.

ACKs for top commit:
  jamesob:
    reACK 6f994882de based on the contents of
  ariard:
    Code Review ACK 6f99488.
  jnewbery:
    utACK 6f994882deafe62e97f0a889d8bdb8c96dcf913d
  achow101:
    Code Review ACK 6f994882deafe62e97f0a889d8bdb8c96dcf913d
  ryanofsky:
    Code review ACK 6f994882deafe62e97f0a889d8bdb8c96dcf913d.

Tree-SHA512: 4052ea79360cf0efd81ad0ee3f982e1d93aab1837dcec75f875a56ceda085de078bb3099a2137935d7cc2222004ad88da94b605ef5efef35cb6bc733725debe6
2021-06-12 11:29:31 +08:00
..

Unit tests

The sources in this directory are unit test cases. Boost includes a unit testing framework, and since Bitcoin Core already uses Boost, it makes sense to simply use this framework rather than require developers to configure some other framework (we want as few impediments to creating unit tests as possible).

The build system is set up to compile an executable called test_bitcoin that runs all of the unit tests. The main source file for the test library is found in util/setup_common.cpp.

Compiling/running unit tests

Unit tests will be automatically compiled if dependencies were met in ./configure and tests weren't explicitly disabled.

After configuring, they can be run with make check.

To run the unit tests manually, launch src/test/test_bitcoin. To recompile after a test file was modified, run make and then run the test again. If you modify a non-test file, use make -C src/test to recompile only what's needed to run the unit tests.

To add more unit tests, add BOOST_AUTO_TEST_CASE functions to the existing .cpp files in the test/ directory or add new .cpp files that implement new BOOST_AUTO_TEST_SUITE sections.

To run the GUI unit tests manually, launch src/qt/test/test_bitcoin-qt

To add more GUI unit tests, add them to the src/qt/test/ directory and the src/qt/test/test_main.cpp file.

Running individual tests

test_bitcoin has some built-in command-line arguments; for example, to run just the getarg_tests verbosely:

test_bitcoin --log_level=all --run_test=getarg_tests -- DEBUG_LOG_OUT

log_level controls the verbosity of the test framework, which logs when a test case is entered, for example. The DEBUG_LOG_OUT after the two dashes redirects the debug log, which would normally go to a file in the test datadir (BasicTestingSetup::m_path_root), to the standard terminal output.

... or to run just the doubledash test:

test_bitcoin --run_test=getarg_tests/doubledash

Run test_bitcoin --help for the full list.

Adding test cases

To add a new unit test file to our test suite you need to add the file to src/Makefile.test.include. The pattern is to create one test file for each class or source file for which you want to create unit tests. The file naming convention is <source_filename>_tests.cpp and such files should wrap their tests in a test suite called <source_filename>_tests. For an example of this pattern, see uint256_tests.cpp.

Logging and debugging in unit tests

make check will write to a log file foo_tests.cpp.log and display this file on failure. For running individual tests verbosely, refer to the section above.

To write to logs from unit tests you need to use specific message methods provided by Boost. The simplest is BOOST_TEST_MESSAGE.

For debugging you can launch the test_bitcoin executable with gdbor lldb and start debugging, just like you would with any other program:

gdb src/test/test_bitcoin