3f826598a4
f4691b6c217ab843e6e66fa0ad34d83137499a89 tests: Add fuzzing harness for CKey related functions (practicalswift)
Pull request description:
Add fuzzing harness for `CKey` and key related functions.
**How to test this PR**
```
$ make distclean
$ ./autogen.sh
$ CC=clang CXX=clang++ ./configure --enable-fuzz \
--with-sanitizers=address,fuzzer,undefined
$ make
$ src/test/fuzz/key
…
#4096 pulse cov: 5736 ft: 6960 corp: 27/833b lim: 67 exec/s: 2048 rss: 122Mb
#8192 pulse cov: 5736 ft: 6960 corp: 27/833b lim: 103 exec/s: 2048 rss: 143Mb
#13067 NEW cov: 5736 ft: 6965 corp: 28/865b lim: 154 exec/s: 2177 rss: 166Mb L: 32/32 MS: 1 ChangeBit-
#16384 pulse cov: 5736 ft: 6965 corp: 28/865b lim: 182 exec/s: 2048 rss: 181Mb
#32768 pulse cov: 5736 ft: 6965 corp: 28/865b lim: 347 exec/s: 2184 rss: 258Mb
…
```
Top commit has no ACKs.
Tree-SHA512: 5b17ffb70c31966d3eac06d2258c127ae671d28d6cdf4e6ac20b45cd59ad32f80952c9c749930b97d317c72d5f840a3b75d466fd28fb6c351424a72c3e41bcbc
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