chore: move cookie fuzz test to go 1.18 fuzzing (#1686)

.gitignore

@@ -6,3 +6,4 @@ tags
 .vscode
 .DS_Store
 vendor/
+testdata/fuzz

cookie_test.go

@@ -1,6 +1,7 @@
 package fasthttp
 
 import (
+	"bytes"
 	"strings"
 	"testing"
 	"time"
@@ -15,6 +16,27 @@ func TestCookiePanic(t *testing.T) {
 	}
 }
 
+func FuzzCookieParse(f *testing.F) {
+	inputs := []string{
+		`xxx=yyy`,
+		`xxx=yyy; expires=Tue, 10 Nov 2009 23:00:00 GMT; domain=foobar.com; path=/a/b`,
+		" \n\t\"",
+	}
+	for _, input := range inputs {
+		f.Add([]byte(input))
+	}
+	c := AcquireCookie()
+	defer ReleaseCookie(c)
+	f.Fuzz(func(t *testing.T, cookie []byte) {
+		_ = c.ParseBytes(cookie)
+
+		w := bytes.Buffer{}
+		if _, err := c.WriteTo(&w); err != nil {
+			t.Fatalf("unexpected error: %v", err)
+		}
+	})
+}
+
 func TestCookieValueWithEqualAndSpaceChars(t *testing.T) {
 	t.Parallel()
 

fuzzit/cookie/cookie_fuzz.go

@@ -1,25 +0,0 @@
-//go:build gofuzz
-
-package fuzz
-
-import (
-	"bytes"
-
-	"github.com/valyala/fasthttp"
-)
-
-func Fuzz(data []byte) int {
-	c := fasthttp.AcquireCookie()
-	defer fasthttp.ReleaseCookie(c)
-
-	if err := c.ParseBytes(data); err != nil {
-		return 0
-	}
-
-	w := bytes.Buffer{}
-	if _, err := c.WriteTo(&w); err != nil {
-		return 0
-	}
-
-	return 1
-}