Mercurial > hg
view tests/test-fuzz-targets.t @ 44996:c2df0bca0dfa
perf: make `hg perfwrite` more flexible
The more flexible command was used recently while finding a solution for a
buffering bug (eventually fixed in f9734b2d59cc (the changeset description uses
a different benchmark)).
In comparison to the previous version, the new version is much more flexible.
While using it, the focus was on testing small writes. For this reason, by
default it calls ui.write() 100 times with a single byte plus one newline byte,
for 100 lines.
To get the previous behavior, run `hg perfwrite --nlines=100000 --nitems=1
--item='Testing write performance' --batch-line`.
author | Manuel Jacob <me@manueljacob.de> |
---|---|
date | Fri, 05 Jun 2020 01:54:13 +0200 |
parents | 19da643dc10c |
children | b918494198f7 |
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#require test-repo $ cd $TESTDIR/../contrib/fuzz $ OUT=$TESTTMP ; export OUT which(1) could exit nonzero, but that's fine because we'll still end up without a valid executable, so we don't need to check $? here. $ if which gmake >/dev/null 2>&1; then > MAKE=gmake > else > MAKE=make > fi $ havefuzz() { > cat > $TESTTMP/dummy.cc <<EOF > #include <stdlib.h> > #include <stdint.h> > int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; } > int main(int argc, char **argv) { > const char data[] = "asdf"; > return LLVMFuzzerTestOneInput((const uint8_t *)data, 4); > } > EOF > $CXX $TESTTMP/dummy.cc -o $TESTTMP/dummy \ > -fsanitize=fuzzer-no-link,address || return 1 > } #if clang-libfuzzer $ CXX=clang++ havefuzz || exit 80 $ $MAKE -s clean all PYTHON_CONFIG=`which python-config` #endif #if no-clang-libfuzzer clang-6.0 $ CXX=clang++-6.0 havefuzz || exit 80 $ $MAKE -s clean all CC=clang-6.0 CXX=clang++-6.0 PYTHON_CONFIG=`which python-config` #endif #if no-clang-libfuzzer no-clang-6.0 $ exit 80 #endif $ cd $TESTTMP Run each fuzzer using dummy.cc as a fake input, to make sure it runs at all. In the future we should instead unpack the corpus for each fuzzer and use that instead. $ for fuzzer in `ls *_fuzzer | sort` ; do > echo run $fuzzer... > ./$fuzzer dummy.cc > /dev/null 2>&1 > done run bdiff_fuzzer... run dirs_fuzzer... run dirstate_fuzzer... run fm1readmarkers_fuzzer... run fncache_fuzzer... run jsonescapeu8fast_fuzzer... run manifest_fuzzer... run mpatch_fuzzer... run revlog_fuzzer... run xdiff_fuzzer... Clean up. $ cd $TESTDIR/../contrib/fuzz $ $MAKE -s clean