github.com/Serizao/go-winio@v0.0.0-20230906082528-f02f7f4ad6e8/hvsock_go118_test.go (about) 1 //go:build windows && go1.18 2 3 package winio 4 5 import ( 6 "errors" 7 "fmt" 8 "testing" 9 "time" 10 ) 11 12 func FuzzHvSockRxTx(f *testing.F) { 13 for _, b := range [][]byte{ 14 []byte("hello?"), 15 []byte("This is a really long string that should be a good example of the really long " + 16 "payloads that may be sent over hvsockets when really long inputs are being used, tautologically. " + 17 "That means that we will have to test with really long input sequences, which means that " + 18 "we need to include really long byte sequences or strings in our testing so that we know that " + 19 "the sockets can deal with really long inputs. Look at this key mashing: " + 20 "sdflhsdfgkjdhskljjsad;kljfasd;lfkjsadl ;fasdjfopiwej09q34iur092\"i4o[piwajfliasdkf-012ior]-" + 21 "01oi3;'lSD<Fplkasdjgoisaefjoiasdlj\"hgfoaisdkf';laksdjdf[poaiseefk-0923i4roi3qwjrf9" + 22 "08sEJKEFOLIsaejf[09saEJFLKSADjf;lkasdjf;kljaslddhgaskghk"), 23 {0x5c, 0xbd, 0xb5, 0xe7, 0x6b, 0xcb, 0xe7, 0x23, 0xff, 0x7a, 0x19, 0x77, 0x2c, 0xca, 0xab, 0x3b}, 24 } { 25 f.Add(b) 26 } 27 28 f.Fuzz(func(t *testing.T, a []byte) { 29 if string(a) == "" { 30 t.Skip("skipping empty string") 31 } 32 t.Logf("testing %q (%d)", a, len(a)) 33 u := newUtil(t) 34 cl, sv, _ := clientServer(u) 35 36 svCh := u.Go(func() error { 37 n, err := cl.Write(a) 38 if err != nil { 39 return fmt.Errorf("client write: %w", err) 40 } 41 if n != len(a) { 42 return errors.New("client did not send full message") 43 } 44 45 b := make([]byte, len(a)+5) // a little extra to make sure nothing else is sent 46 n, err = cl.Read(b) 47 if err != nil { 48 return fmt.Errorf("client read: %w", err) 49 } 50 if n != len(a) { 51 return errors.New("client did not read full message") 52 } 53 bn := b[:n] 54 if string(a) != string(bn) { 55 return fmt.Errorf("client payload mismatch %q != %q", a, bn) 56 } 57 t.Log("client received") 58 return nil 59 }) 60 61 clCh := u.Go(func() error { 62 b := make([]byte, len(a)+5) // a little extra to make sure nothing else is sent 63 n, err := sv.Read(b) 64 if err != nil { 65 return fmt.Errorf("server read: %w", err) 66 } 67 if n != len(a) { 68 return errors.New("server did not read full message") 69 } 70 bn := b[:n] 71 if string(a) != string(bn) { 72 return fmt.Errorf("server payload mismatch %q != %q", a, bn) 73 } 74 75 n, err = sv.Write(bn) 76 if err != nil { 77 return fmt.Errorf("server write: %w", err) 78 } 79 if n != len(a) { 80 return errors.New("server did not send full message") 81 } 82 t.Log("server sent") 83 return nil 84 }) 85 u.WaitErr(svCh, 250*time.Millisecond) 86 u.WaitErr(clCh, 250*time.Millisecond) 87 }) 88 }