Files
bitcoin/src/test
W. J. van der Laan 2b45cf0bcd Merge bitcoin/bitcoin#19521: Coinstats Index
5f96d7d22d rpc: gettxoutsetinfo rejects hash_serialized_2 for specific height (Fabian Jahr)
23fe50436b test: Add test for coinstatsindex behavior in reorgs (Fabian Jahr)
90c966b0f3 rpc: Allow gettxoutsetinfo and getblockstats for stale blocks (Fabian Jahr)
b9362392ae index, rpc: Add use_index option for gettxoutsetinfo (Fabian Jahr)
bb7788b121 test: Test coinstatsindex robustness across restarts (Fabian Jahr)
e0938c2909 test: Add tests for block_info in gettxoutsetinfo (Fabian Jahr)
2501576ecc rpc, index: Add verbose amounts tracking to Coinstats index (Fabian Jahr)
655d929836 test: add coinstatsindex getindexinfo coverage, improve current tests (Jon Atack)
ca01bb8d68 rpc: Add Coinstats index to getindexinfo (Fabian Jahr)
57a026c30f test: Add unit test for Coinstats index (Fabian Jahr)
6a4c0c09ab test: Add functional test for Coinstats index (Fabian Jahr)
3f166ecc12 rpc: gettxoutsetinfo can be requested for specific blockheights (Fabian Jahr)
3c914d58ff index: Coinstats index can be activated with command line flag (Fabian Jahr)
dd58a4de21 index: Add Coinstats index (Fabian Jahr)
a8a46c4b3c refactor: Simplify ApplyStats and ApplyHash (Fabian Jahr)
9c8a265fd2 refactor: Pass hash_type to CoinsStats in stats object (Fabian Jahr)
2e2648a902 crypto: Make MuHash Remove method efficient (Fabian Jahr)

Pull request description:

  This is part of the coinstats index project tracked in #18000

  While the review of the new UTXO set hash algorithm (MuHash) takes longer recently #19328 was merged which added the possibility to run `gettxoutsetinfo` with a specific hash type. As the first type it added `hash_type=none` which skips the hashing of the UTXO set altogether. This alone did not make `gettxoutsetinfo` much faster but it allows the use of an index for the remaining coin statistics even before a new hashing algorithm has been added. Credit to Sjors for the idea to take this intermediate step.

  Features summary:
  - Users can start their node with the option `-coinstatsindex` which syncs the index in the background
  - After the index is synced the user can  use `gettxoutsetinfo` with `hash_type=none` or `hash_type=muhash` and will get the response instantly out of the index
  - The user can specify a height or block hash when calling `gettxoutsetinfo` to see coin statistics at a specific block height

ACKs for top commit:
  Sjors:
    re-tACK 5f96d7d22d
  jonatack:
    Code review re-ACK 5f96d7d22d per `git range-diff 13d27b4 07201d3 5f96d7d`
  promag:
    Tested ACK 5f96d7d22d. Light code review ACK 5f96d7d22d.

Tree-SHA512: cbca78bee8e9605c19da4fbcd184625fb280200718396c694a56c7daab6f44ad23ca9fb5456d09f245d8b8d9659fdc2b3f3ce5e953c1c6cf4003dbc74c0463c2
2021-04-30 17:27:19 +02:00
..
2021-03-15 17:26:39 -07:00
2020-04-16 13:33:09 -04:00
2020-03-31 17:11:47 -04:00

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