MarcoFalke 6677be64f6
Merge #17473: refactor: Settings code cleanups
e9fd366044e271632dc0e4f96e1c14f8e87213ae refactor: Remove null setting check in GetSetting() (Russell Yanofsky)
cba2710220d76bbe790b04088839cbbd410436de scripted-diff: Remove unused ArgsManager type flags in tests (Russell Yanofsky)
425bb307252cf4dec9b3ef6426e6548b2be7a303 refactor: Add util_CheckValue test (Russell Yanofsky)
0fa54358b06b58f4d17073bcc8a959eb9498aadc refactor: Add ArgsManager::GetSettingsList method (Russell Yanofsky)
3e185522ace1678e0a25b9cf8a5553a4bc279bea refactor: Get rid of ArgsManagerHelper class (Russell Yanofsky)
dc0f1480746b34aa3ca2d9c0f1ec764083026b40 refactor: Replace FlagsOfKnownArg with GetArgFlags (Russell Yanofsky)
57e8b7a7273567aa4a4aee87cce18e9bff8f3196 refactor: Clean up includeconf comments (Russell Yanofsky)
3f7dc9b808316c1e5d677af8d9a99112568c8ccb refactor: Clean up long lines in settings code (Russell Yanofsky)

Pull request description:

  This PR doesn't change behavior. It just implements some suggestions from #15934 and #16545 and few other small cleanups.

ACKs for top commit:
  jnewbery:
    Code review ACK e9fd366044e271632dc0e4f96e1c14f8e87213ae
  MarcoFalke:
    ACK e9fd366044 🚟

Tree-SHA512: 6e100d92c72f72bc39567187ab97a3547b3c06e5fcf1a1b74023358b8bca552124ca6a53c0ab53179b7f1329c03d9a73faaef6d73d2cd1a2321568a0286525e2
2019-12-20 03:05:28 +07:00
..
2019-12-16 19:43:15 -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 bitcoind 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 bitcoind tests.

To add more bitcoind 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 bitcoin-qt tests manually, launch src/qt/test/test_bitcoin-qt

To add more bitcoin-qt 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

... 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

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 bitcoind:

gdb src/test/test_bitcoin