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How to use init method of rand Package

Best Testkube code snippet using rand.init

messages_test.go

Source:messages_test.go

1// Copyright 2011 The Go Authors. All rights reserved.2// Use of this source code is governed by a BSD-style3// license that can be found in the LICENSE file.4package ssh5import (6	"bytes"7	"math/big"8	"math/rand"9	"reflect"10	"testing"11	"testing/quick"12)13var intLengthTests = []struct {14	val, length int15}{16	{0, 4 + 0},17	{1, 4 + 1},18	{127, 4 + 1},19	{128, 4 + 2},20	{-1, 4 + 1},21}22func TestIntLength(t *testing.T) {23	for _, test := range intLengthTests {24		v := new(big.Int).SetInt64(int64(test.val))25		length := intLength(v)26		if length != test.length {27			t.Errorf("For %d, got length %d but expected %d", test.val, length, test.length)28		}29	}30}31type msgAllTypes struct {32	Bool    bool `sshtype:"21"`33	Array   [16]byte34	Uint64  uint6435	Uint32  uint3236	Uint8   uint837	String  string38	Strings []string39	Bytes   []byte40	Int     *big.Int41	Rest    []byte `ssh:"rest"`42}43func (t *msgAllTypes) Generate(rand *rand.Rand, size int) reflect.Value {44	m := &msgAllTypes{}45	m.Bool = rand.Intn(2) == 146	randomBytes(m.Array[:], rand)47	m.Uint64 = uint64(rand.Int63n(1<<63 - 1))48	m.Uint32 = uint32(rand.Intn((1 << 31) - 1))49	m.Uint8 = uint8(rand.Intn(1 << 8))50	m.String = string(m.Array[:])51	m.Strings = randomNameList(rand)52	m.Bytes = m.Array[:]53	m.Int = randomInt(rand)54	m.Rest = m.Array[:]55	return reflect.ValueOf(m)56}57func TestMarshalUnmarshal(t *testing.T) {58	rand := rand.New(rand.NewSource(0))59	iface := &msgAllTypes{}60	ty := reflect.ValueOf(iface).Type()61	n := 10062	if testing.Short() {63		n = 564	}65	for j := 0; j < n; j++ {66		v, ok := quick.Value(ty, rand)67		if !ok {68			t.Errorf("failed to create value")69			break70		}71		m1 := v.Elem().Interface()72		m2 := iface73		marshaled := Marshal(m1)74		if err := Unmarshal(marshaled, m2); err != nil {75			t.Errorf("Unmarshal %#v: %s", m1, err)76			break77		}78		if !reflect.DeepEqual(v.Interface(), m2) {79			t.Errorf("got: %#v\nwant:%#v\n%x", m2, m1, marshaled)80			break81		}82	}83}84func TestUnmarshalEmptyPacket(t *testing.T) {85	var b []byte86	var m channelRequestSuccessMsg87	if err := Unmarshal(b, &m); err == nil {88		t.Fatalf("unmarshal of empty slice succeeded")89	}90}91func TestUnmarshalUnexpectedPacket(t *testing.T) {92	type S struct {93		I uint32 `sshtype:"43"`94		S string95		B bool96	}97	s := S{11, "hello", true}98	packet := Marshal(s)99	packet[0] = 42100	roundtrip := S{}101	err := Unmarshal(packet, &roundtrip)102	if err == nil {103		t.Fatal("expected error, not nil")104	}105}106func TestMarshalPtr(t *testing.T) {107	s := struct {108		S string109	}{"hello"}110	m1 := Marshal(s)111	m2 := Marshal(&s)112	if !bytes.Equal(m1, m2) {113		t.Errorf("got %q, want %q for marshaled pointer", m2, m1)114	}115}116func TestBareMarshalUnmarshal(t *testing.T) {117	type S struct {118		I uint32119		S string120		B bool121	}122	s := S{42, "hello", true}123	packet := Marshal(s)124	roundtrip := S{}125	Unmarshal(packet, &roundtrip)126	if !reflect.DeepEqual(s, roundtrip) {127		t.Errorf("got %#v, want %#v", roundtrip, s)128	}129}130func TestBareMarshal(t *testing.T) {131	type S2 struct {132		I uint32133	}134	s := S2{42}135	packet := Marshal(s)136	i, rest, ok := parseUint32(packet)137	if len(rest) > 0 || !ok {138		t.Errorf("parseInt(%q): parse error", packet)139	}140	if i != s.I {141		t.Errorf("got %d, want %d", i, s.I)142	}143}144func TestUnmarshalShortKexInitPacket(t *testing.T) {145	// This used to panic.146	// Issue 11348147	packet := []byte{0x14, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0xff, 0xff, 0xff, 0xff}148	kim := &kexInitMsg{}149	if err := Unmarshal(packet, kim); err == nil {150		t.Error("truncated packet unmarshaled without error")151	}152}153func TestMarshalMultiTag(t *testing.T) {154	var res struct {155		A uint32 `sshtype:"1|2"`156	}157	good1 := struct {158		A uint32 `sshtype:"1"`159	}{160		1,161	}162	good2 := struct {163		A uint32 `sshtype:"2"`164	}{165		1,166	}167	if e := Unmarshal(Marshal(good1), &res); e != nil {168		t.Errorf("error unmarshaling multipart tag: %v", e)169	}170	if e := Unmarshal(Marshal(good2), &res); e != nil {171		t.Errorf("error unmarshaling multipart tag: %v", e)172	}173	bad1 := struct {174		A uint32 `sshtype:"3"`175	}{176		1,177	}178	if e := Unmarshal(Marshal(bad1), &res); e == nil {179		t.Errorf("bad struct unmarshaled without error")180	}181}182func randomBytes(out []byte, rand *rand.Rand) {183	for i := 0; i < len(out); i++ {184		out[i] = byte(rand.Int31())185	}186}187func randomNameList(rand *rand.Rand) []string {188	ret := make([]string, rand.Int31()&15)189	for i := range ret {190		s := make([]byte, 1+(rand.Int31()&15))191		for j := range s {192			s[j] = 'a' + uint8(rand.Int31()&15)193		}194		ret[i] = string(s)195	}196	return ret197}198func randomInt(rand *rand.Rand) *big.Int {199	return new(big.Int).SetInt64(int64(int32(rand.Uint32())))200}201func (*kexInitMsg) Generate(rand *rand.Rand, size int) reflect.Value {202	ki := &kexInitMsg{}203	randomBytes(ki.Cookie[:], rand)204	ki.KexAlgos = randomNameList(rand)205	ki.ServerHostKeyAlgos = randomNameList(rand)206	ki.CiphersClientServer = randomNameList(rand)207	ki.CiphersServerClient = randomNameList(rand)208	ki.MACsClientServer = randomNameList(rand)209	ki.MACsServerClient = randomNameList(rand)210	ki.CompressionClientServer = randomNameList(rand)211	ki.CompressionServerClient = randomNameList(rand)212	ki.LanguagesClientServer = randomNameList(rand)213	ki.LanguagesServerClient = randomNameList(rand)214	if rand.Int31()&1 == 1 {215		ki.FirstKexFollows = true216	}217	return reflect.ValueOf(ki)218}219func (*kexDHInitMsg) Generate(rand *rand.Rand, size int) reflect.Value {220	dhi := &kexDHInitMsg{}221	dhi.X = randomInt(rand)222	return reflect.ValueOf(dhi)223}224var (225	_kexInitMsg   = new(kexInitMsg).Generate(rand.New(rand.NewSource(0)), 10).Elem().Interface()226	_kexDHInitMsg = new(kexDHInitMsg).Generate(rand.New(rand.NewSource(0)), 10).Elem().Interface()227	_kexInit   = Marshal(_kexInitMsg)228	_kexDHInit = Marshal(_kexDHInitMsg)229)230func BenchmarkMarshalKexInitMsg(b *testing.B) {231	for i := 0; i < b.N; i++ {232		Marshal(_kexInitMsg)233	}234}235func BenchmarkUnmarshalKexInitMsg(b *testing.B) {236	m := new(kexInitMsg)237	for i := 0; i < b.N; i++ {238		Unmarshal(_kexInit, m)239	}240}241func BenchmarkMarshalKexDHInitMsg(b *testing.B) {242	for i := 0; i < b.N; i++ {243		Marshal(_kexDHInitMsg)244	}245}246func BenchmarkUnmarshalKexDHInitMsg(b *testing.B) {247	m := new(kexDHInitMsg)248	for i := 0; i < b.N; i++ {249		Unmarshal(_kexDHInit, m)250	}251}...

init

Using AI Code Generation

1import (2func main() {3    fmt.Println("My favorite number is", rand.Intn(10))4}5import (6func main() {7    fmt.Println("Welcome to the playground!")8    fmt.Println("The time is", time.Now())9}10import (11func main() {12    fmt.Println("Welcome to the playground!")13    fmt.Println("The time is", time.Now())14}15import (16func main() {17    fmt.Println("Welcome to the playground!")18}19import (20func main() {21    fmt.Println("Welcome to the playground!")22}23import (24func main() {25    fmt.Println("Welcome to the playground!")26}27import (28func main() {29    fmt.Println("Welcome to the playground!")30}31import (32func main() {33    fmt.Println("Welcome to the playground!")34}35import (36func main() {37    fmt.Println("Welcome to the playground!")38}39import (40func main() {41    fmt.Println("Welcome to the playground!")42}43import (44func main() {45    fmt.Println("Welcome to the playground!")46}47import (

init

Using AI Code Generation

1import (2func main() {3	fmt.Println(rand.Intn(100))4}5import (6func main() {7	fmt.Println(rand.Intn(100))8}9import (10func main() {11	fmt.Println(rand.Intn(100))12}13import (14func main() {15	fmt.Println(rand.Intn(100))16}17import (18func main() {19	fmt.Println(rand.Intn(100))20}21import (22func main() {23	fmt.Println(rand.Intn(100))24}25import (26func main() {27	fmt.Println(rand.Intn(100))28}29import (30func main() {31	fmt.Println(rand.Intn(100))32}33import (34func main() {35	fmt.Println(rand.Intn(100))36}37import (38func main() {39	fmt.Println(rand.Intn(100))40}41import (42func main() {43	fmt.Println(rand.Intn(100))44}45import (46func main() {47	fmt.Println(rand.Intn(100))

init

Using AI Code Generation

1import (2func main() {3    fmt.Println(rand.Intn(100))4}5import (6func main() {7    fmt.Println(rand.Intn(100))8}9import (10func main() {11    fmt.Println(rand.Intn(100))12}13import (14func main() {15    fmt.Println(rand.Intn(100))16}17import (18func main() {19    fmt.Println(rand.Intn(100))20}21import (22func main() {23    fmt.Println(rand.Intn(100))24}25import (26func main() {27    fmt.Println(rand.Intn(100))28}29import (30func main() {31    fmt.Println(rand.Intn(100))32}33import (34func main() {35    fmt.Println(rand.Intn(100))36}37import (38func main() {39    fmt.Println(rand.Intn(100))40}41import (42func main() {43    fmt.Println(rand.Intn(100))44}

init

Using AI Code Generation

1import (2func main() {3    fmt.Println("My favorite number is ", rand.Intn(10))4}5import (6func main() {7    fmt.Println("My favorite number is ", rand.Intn(10))8}9import (10func main() {11    fmt.Println("My favorite number is ", rand.Intn(10))12}13import (14func main() {15    fmt.Println("My favorite number is ", rand.Intn(10))16}17import (18func main() {19    fmt.Println("My favorite number is ", rand.Intn(10))20}21import (22func main() {23    fmt.Println("My favorite number is ", rand.Intn(10))24}25import (26func main() {27    fmt.Println("My favorite number is ", rand.Intn(10))28}29import (30func main() {31    fmt.Println("My favorite number is ", rand.Intn(10))32}33import (34func main() {35    fmt.Println("My favorite number is ", rand.Intn(10))36}37import (38func main() {39    fmt.Println("My favorite number is ", rand.Int

init

Using AI Code Generation

1import (2func main() {3	fmt.Println(rand.Intn(100))4}5import (6func main() {7	fmt.Println(time.Now())8}9import (10func main() {11	fmt.Println("Hello World")12}13import (14func main() {15	fmt.Println(strings.ToUpper("hello"))16}17import (18func main() {19	fmt.Println(strconv.Atoi("123"))20}21import (22func main() {23	fmt.Println(os.Getwd())24}25import (26func main() {27	fmt.Println(io.EOF)28}29import (30func main() {31	fmt.Println(bufio.ErrInvalidUnreadByte)32}33import (34func main() {35	fmt.Println(sync.RWMutex{})36}37import (38func main() {39	fmt.Println(flag.ErrHelp)40}41import (42func main() {43	fmt.Println(log.Ldate)44}45import (46func main() {47	fmt.Println(regexp.MatchString("a(b", "abc"))48}

init

Using AI Code Generation

1import (2func main() {3	fmt.Println("A number from 1-100", rand.Intn(100))4}5import (6func main() {7	rand.Seed(time.Now().UnixNano())8	fmt.Println("A number from 1-100", rand.Intn(100))9}10import (11func main() {12	fmt.Println("The time is", time.Now())13}14import (15func main() {16	fmt.Println("The value of Pi is", math.Pi)17}18import (19func main() {20	fmt.Println("Contains:  ", strings.Contains("test", "es"))21	fmt.Println("Count:     ", strings.Count("test", "t"))22	fmt.Println("HasPrefix: ", strings.HasPrefix("test", "te"))23	fmt.Println("HasSuffix: ", strings.HasSuffix("test", "st"))24	fmt.Println("Index:     ", strings.Index("test", "e"))25	fmt.Println("Join:      ", strings.Join([]string{"a", "b"}, "-"))

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