fanquake e826b22da2
Merge bitcoin/bitcoin#22275: A few follow-ups for taproot signing
08f57a0057c58f19cd8ae3de89548d014980478a Assert that IsComplete() in GetSpendData() (Pieter Wuille)
d8f4b976d5ae9e6eee741dfdda53b8bc8573221b Remove default nHashTypeIn arguments to MutableTransactionSignatureCreator (Pieter Wuille)
c7048aae9545afd8d522e200ecadcf69f22399a0 Simplify SignTransaction precomputation loop (Pieter Wuille)
addb9b5a71ff96bdb1a4c15bc9345de0d7f2c98c Improve comments in taproot signing logic (Pieter Wuille)

Pull request description:

  This addresses a few review comments from #21365 that were left at the time of merge (as well as some from #22166 applying to the commit it shared with #21365).

  I do not think any are blockers for a 22.0 release.

ACKs for top commit:
  theStack:
    re-ACK 08f57a0057c58f19cd8ae3de89548d014980478a 🌴
  Zero-1729:
    crACK 08f57a0
  jonatack:
    Code review ACK 08f57a0057c58f19cd8ae3de89548d014980478a per `git range-diff e9d6eb1 9336670 08f57a0` followed by re-code review per commit to swap context back into memory and debug build/run unit tests + feature_taproot.py as a sanity check

Tree-SHA512: 968750109ba8d6faf3016035a38f81c6aefb724c632a3cab0bbf43cf31b9d187b6b0fddd8772768f57338df11eb07ab9c4c6dacdf3cf35b71f29699c67a301ea
2021-08-23 12:25:49 +08:00
..
2021-08-05 09:53:03 +02:00

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