To get the fuzzing framework::

go get -u github.com/dvyukov/go-fuzz/go-fuzz
go get -u github.com/dvyukov/go-fuzz/go-fuzz-build

To run the fuzzing code::

cd ~/go/src/seehuhn.de/go/classification/tree/fuzzing/
go-fuzz-build seehuhn.de/go/classification/tree
go-fuzz -bin=./tree-fuzz.zip -workdir=.