# Fuzz smoke, Go. Dispatched by hand when a change asks for it.
#
# Fuzzing is exploration, so it never belongs to the push pipeline; a 30 second
# smoke per target on a hand dispatch checks a change without holding the
# shared box. The targets run the seeds and whatever the corpus has gathered; a
# failure leaves its crashing input in testdata/fuzz, which the ordinary suite
# then reproduces on every push.
#
# Every step is one command, so the step that fails is the gate that failed.
name: Fuzz

on:
  workflow_dispatch:

env:
  # One core: parallelism buys no speed here and costs memory the box does not have.
  GOFLAGS: -p=1
  GOMAXPROCS: "2"

jobs:
  fuzz:
    runs-on: fedora
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@v7

      - uses: actions/setup-go@v6
        with:
          go-version-file: go.mod
          cache: true

      - name: Fuzz the parser
        run: go test -run '^$' -fuzz FuzzParse -fuzztime=30s -timeout 10m .

      - name: Fuzz the encoder
        run: go test -run '^$' -fuzz FuzzMarshal -fuzztime=30s -timeout 10m .