Fuzzing on macOS

Beacon Fuzzer guide for macOS users.

General
​Fuzzing or fuzz testing is an automated software testing technique that involves providing invalid, unexpected, or random data as inputs to a computer program.
​https://github.com/sigp/beacon-fuzz​
​Lighthouse Discord Channel​
Requirements
​Install Docker​
8-16 GB RAM 
2-4 Core CPU
Configure Docker file sharing settings
Make sure that the paths  /Users , /Volumes , /private ,  /tmp have been entered.
Fuzzing
Step 0. 
Open up a Terminal and test if docker is up and running docker -v
Step 1.

Clone the repository git clone https://github.com/sigp/beacon-fuzz
Step 2.
Change your directory cd beacon-fuzz/eth2fuzz
Step 3. 
Build all Ethereum 2.0 client docker containers make fuzz-all
This process can take up to one hour.
Once the building process is done, the Fuzzer will start by fuzzing the Lighthouse client and fuzz the next client after one hour. The total process takes 5hours.
Fuzzing Lighthouse
Report & find bugs
Step 0.
Open Finder and head over to its Preferences
Change the search settings to Search the Current Folder
Step 1.
If the fuzzer finds a bug it creates a crash file in the workspace folder
~/beacon-fuzz/eth2fuzz/workspace
​
Step 2.
Search the workspace folder for files called "crash-...", which is the bug file and compress it to a zip.file
An example:
crash-efc8b3f0753ddd9df52b066d2f4549d548a21a58
Post the zip file on the beacon-fuzz github repository.