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Viewing file:     test2json_interrupt.txt (1.71 KB)      -rw-r--r--

[short] skip 'links and runs a test binary'
[!fuzz] skip 'tests SIGINT behavior for interrupting fuzz tests'
[GOOS:windows] skip 'windows does not support os.Interrupt'

? go test -json -fuzz FuzzInterrupt -run '^$' -parallel 1
stdout -count=1 '"Action":"pass","Package":"example","Test":"FuzzInterrupt"'
stdout -count=1 '"Action":"pass","Package":"example","Elapsed":'

mkdir $WORK/fuzzcache
go test -c . -fuzz=. -o example_test.exe
? go tool test2json -p example -t ./example_test.exe -test.v -test.paniconexit0 -test.fuzzcachedir $WORK/fuzzcache -test.fuzz FuzzInterrupt -test.run '^$' -test.parallel 1
stdout -count=1 '"Action":"pass","Package":"example","Test":"FuzzInterrupt"'
stdout -count=1 '"Action":"pass","Package":"example","Elapsed":'

-- go.mod --
module example
go 1.20
-- example_test.go --
package example_test

import (
	"fmt"
	"os"
	"strconv"
	"testing"
	"strings"
	"time"
)

func FuzzInterrupt(f *testing.F) {
	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
			// to the main test process and its parent.
			for _, pid := range strings.Split(pids, ",") {
				i, err := strconv.Atoi(pid)
				if err != nil {
					t.Fatal(err)
				}
				if p, err := os.FindProcess(i); err == nil {
					p.Signal(os.Interrupt)
					sentInterrupt = true // Only send interrupts once.
				}
			}
		}
		time.Sleep(1 * time.Millisecond)  // Delay the fuzzer a bit to avoid wasting CPU.
	})
}