f.Fatal("environment variable not set")
  } else if !isWorker() && s != "" {
    f.Fatal("environment variable already set")
  }
  f.Setenv("TEST_FUZZ_SETENV_A", "A")
  if os.Getenv("TEST_FUZZ_SETENV_A") == "" {
    f.Fatal("Setenv did not set environment variable")
  }
  f.Fuzz(func(*testing.T, []byte) {})
}

func FuzzB(f *testing.F) {
  if os.Getenv("TEST_FUZZ_SETENV_A") != "" {

	pids := os.Getenv("GO_TEST_INTERRUPT_PIDS")
	if pids == "" {
		// This is the main test process.
		// Set the environment variable for fuzz workers.
		pid := os.Getpid()
		ppid := os.Getppid()
		os.Setenv("GO_TEST_INTERRUPT_PIDS", fmt.Sprintf("%d,%d", ppid, pid))
	}

	sentInterrupt := false
	f.Fuzz(func(t *testing.T, orig string) {
		if !sentInterrupt {
			// Simulate a ctrl-C on the keyboard by sending SIGINT

pkg syscall (windows-amd64), type SysProcAttr struct, ParentProcess Handle
pkg testing, method (*B) Setenv(string, string)
pkg testing, method (*T) Setenv(string, string)
pkg testing, type TB interface, Setenv(string, string)
pkg text/template/parse, const SkipFuncCheck = 2
pkg text/template/parse, const SkipFuncCheck Mode
pkg time, const Layout = "01/02 03:04:05PM '06 -0700"

pkg testing, method (*F) Helper()
pkg testing, method (*F) Log(...interface{})
pkg testing, method (*F) Logf(string, ...interface{})
pkg testing, method (*F) Name() string
pkg testing, method (*F) Setenv(string, string)
pkg testing, method (*F) Skip(...interface{})
pkg testing, method (*F) SkipNow()
pkg testing, method (*F) Skipf(string, ...interface{})
pkg testing, method (*F) Skipped() bool