dd5f5713bc
4dd94ca18f6fc843137ffca3e6d3e97e4f19377b [refactor] remove access to mapTx in validation_block_tests (TheCharlatan) d0cd2e804ec9b278ed9699c2ae48574b1c1613b1 [refactor] rewrite BlockAssembler inBlock and failedTx as sets of txids (glozow) 55b0939cab49d50ca5bc59105b669e379d5e7f6c scripted-diff: rename vTxHashes to txns_randomized (TheCharlatan) a03aef9cec35b0d03aa63d7e8093f0420cd4b40b [refactor] rewrite vTxHashes as a vector of CTransactionRef (glozow) 938643c3b2b8e7b9aec1df34a2f8a95d616d8dd5 [refactor] remove access to mapTx in validation.cpp (glozow) 333367a9407701b5077e2457b1a6aa8ff5e4934b [txmempool] make CTxMemPoolEntry::lockPoints mutable (glozow) 1bf4855016e777dd8b424fe01750f9e3e97931a2 [refactor] use CheckPackageLimits for checkChainLimits (glozow) dbc5bdbf595e9dd0330493645ebff0b8696192a3 [refactor] remove access to mapTx.find in mempool_tests.cpp (glozow) f80909e7a31523d8f197fd650b138b9f228cd13f [refactor] remove access to mapTx in blockencodings_tests.cpp (glozow) 8892d6b744e3cbda2cf93721f573ffa7017bd898 [refactor] remove access to mapTx from rpc/mempool.cpp (glozow) fad61aa56189f98d97af1d6f70c4eb46b8f98bf0 [refactor] get wtxid from entry instead of vTxHashes (glozow) 9cd8cafb77563243af19c95e396c2fb4fc3758df [refactor] use exists() instead of mapTx.find() (glozow) 14804699e59794e61dcfb02ff1971db96e9a06ce [refactor] remove access to mapTx from policy/rbf.cpp (glozow) 1c6a73abbd1fb773c7d0036beb952b95dde8e38b [refactor] Add helper for retrieving mempool entry (TheCharlatan) 453b4813ebc74859864803e9972b58e4be76a4d6 [refactor] Add helper for iterating through mempool entries (stickies-v) Pull request description: Motivation * It seems preferable to use stdlib data structures instead of boost if they can achieve close to the same thing. * Code external to mempool should ideally use its public helper methods instead of accessing `mapTx` or its iterators directly. * Reduce the number of complex boost multi index type interactions * Also see #28335 for further context/motivation. This PR together with #28385 simplifies that one. Overview of things done in this PR: * Make `vTxHashes` a vector of transaction references instead of a pair of transaction hash and iterator. The trade off here is that the data is retrieved on the fly with `GetEntry` instead of being cached in `vTxHashes`. * Introduce `GetEntry` helper method to replace the more involved `GetIter` where applicable * Replace `mapTx` access with `CTxMemPool` helper methods * Simplify `checkChainLimits` call in `node/interfaces.cpp` * Make `CTxMemPoolEntry`s `lockPoints`mutable such that they can be changed with a const iterator directly instead of going through `mapTx` * Make `BlockAssembler`'s `inBlock` and `failedTx` sets of transaction hashes. ACKs for top commit: glozow: reACK 4dd94ca maflcko: re-ACK 4dd94ca18f6fc843137ffca3e6d3e97e4f19377b 👝 stickies-v: re-ACK 4dd94ca18f6fc843137ffca3e6d3e97e4f19377b Tree-SHA512: c4d043f2186e4fde337591883fac66cade3058173987b49502bd65cecf69207a3df1077f6626809652ab63230013167b7f39a2b39f1c5166959e5495df57065f
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 accepts the command line arguments from the boost framework.
For example, to run just the getarg_tests suite of tests:
test_bitcoin --log_level=all --run_test=getarg_tests
log_level controls the verbosity of the test framework, which logs when a
test case is entered, for example. test_bitcoin also accepts the command
line arguments accepted by bitcoind. Use -- to separate both types of
arguments:
test_bitcoin --log_level=all --run_test=getarg_tests -- -printtoconsole=1
The -printtoconsole=1 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 gdb or lldb and
start debugging, just like you would with any other program:
gdb src/test/test_bitcoin
Segmentation faults
If you hit a segmentation fault during a test run, you can diagnose where the fault
is happening by running gdb ./src/test/test_bitcoin and then using the bt command
within gdb.
Another tool that can be used to resolve segmentation faults is valgrind.
If for whatever reason you want to produce a core dump file for this fault, you can do
that as well. By default, the boost test runner will intercept system errors and not
produce a core file. To bypass this, add --catch_system_errors=no to the
test_bitcoin arguments and ensure that your ulimits are set properly (e.g. ulimit -c unlimited).
Running the tests and hitting a segmentation fault should now produce a file called core
(on Linux platforms, the file name will likely depend on the contents of
/proc/sys/kernel/core_pattern).
You can then explore the core dump using
gdb src/test/test_bitcoin core
(gbd) bt # produce a backtrace for where a segfault occurred