#require test-repo

  $ cd $TESTDIR/../contrib/fuzz

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

#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

#endif

#if no-clang-libfuzzer no-clang-6.0

  $ exit 80

#endif

Just run the fuzzers for five seconds each to verify it works at all.

  $ ./bdiff -max_total_time 5

  $ ./mpatch -max_total_time 5

  $ ./xdiff -max_total_time 5