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How to use String method of rand Package

Best Testkube code snippet using rand.String

quick.go

Source:quick.go

...119				return reflect.Value{}, false120			}121			v.Index(i).Set(elem)122		}123	case reflect.String:124		numChars := rand.Intn(complexSize)125		codePoints := make([]rune, numChars)126		for i := 0; i < numChars; i++ {127			codePoints[i] = rune(rand.Intn(0x10ffff))128		}129		v.SetString(string(codePoints))130	case reflect.Struct:131		for i := 0; i < v.NumField(); i++ {132			elem, ok := Value(concrete.Field(i).Type, rand)133			if !ok {134				return reflect.Value{}, false135			}136			v.Field(i).Set(elem)137		}138	default:139		return reflect.Value{}, false140	}141	return v, true142}143// A Config structure contains options for running a test.144type Config struct {145	// MaxCount sets the maximum number of iterations. If zero,146	// MaxCountScale is used.147	MaxCount int148	// MaxCountScale is a non-negative scale factor applied to the default149	// maximum. If zero, the default is unchanged.150	MaxCountScale float64151	// If non-nil, rand is a source of random numbers. Otherwise a default152	// pseudo-random source will be used.153	Rand *rand.Rand154	// If non-nil, the Values function generates a slice of arbitrary155	// reflect.Values that are congruent with the arguments to the function156	// being tested. Otherwise, the top-level Value function is used157	// to generate them.158	Values func([]reflect.Value, *rand.Rand)159}160var defaultConfig Config161// getRand returns the *rand.Rand to use for a given Config.162func (c *Config) getRand() *rand.Rand {163	if c.Rand == nil {164		return rand.New(rand.NewSource(0))165	}166	return c.Rand167}168// getMaxCount returns the maximum number of iterations to run for a given169// Config.170func (c *Config) getMaxCount() (maxCount int) {171	maxCount = c.MaxCount172	if maxCount == 0 {173		if c.MaxCountScale != 0 {174			maxCount = int(c.MaxCountScale * float64(*defaultMaxCount))175		} else {176			maxCount = *defaultMaxCount177		}178	}179	return180}181// A SetupError is the result of an error in the way that check is being182// used, independent of the functions being tested.183type SetupError string184func (s SetupError) Error() string { return string(s) }185// A CheckError is the result of Check finding an error.186type CheckError struct {187	Count int188	In    []interface{}189}190func (s *CheckError) Error() string {191	return fmt.Sprintf("#%d: failed on input %s", s.Count, toString(s.In))192}193// A CheckEqualError is the result CheckEqual finding an error.194type CheckEqualError struct {195	CheckError196	Out1 []interface{}197	Out2 []interface{}198}199func (s *CheckEqualError) Error() string {200	return fmt.Sprintf("#%d: failed on input %s. Output 1: %s. Output 2: %s", s.Count, toString(s.In), toString(s.Out1), toString(s.Out2))201}202// Check looks for an input to f, any function that returns bool,203// such that f returns false.  It calls f repeatedly, with arbitrary204// values for each argument.  If f returns false on a given input,205// Check returns that input as a *CheckError.206// For example:207//208// 	func TestOddMultipleOfThree(t *testing.T) {209// 		f := func(x int) bool {210// 			y := OddMultipleOfThree(x)211// 			return y%2 == 1 && y%3 == 0212// 		}213// 		if err := quick.Check(f, nil); err != nil {214// 			t.Error(err)215// 		}216// 	}217func Check(f interface{}, config *Config) (err error) {218	if config == nil {219		config = &defaultConfig220	}221	fVal, fType, ok := functionAndType(f)222	if !ok {223		err = SetupError("argument is not a function")224		return225	}226	if fType.NumOut() != 1 {227		err = SetupError("function does not return one value")228		return229	}230	if fType.Out(0).Kind() != reflect.Bool {231		err = SetupError("function does not return a bool")232		return233	}234	arguments := make([]reflect.Value, fType.NumIn())235	rand := config.getRand()236	maxCount := config.getMaxCount()237	for i := 0; i < maxCount; i++ {238		err = arbitraryValues(arguments, fType, config, rand)239		if err != nil {240			return241		}242		if !fVal.Call(arguments)[0].Bool() {243			err = &CheckError{i + 1, toInterfaces(arguments)}244			return245		}246	}247	return248}249// CheckEqual looks for an input on which f and g return different results.250// It calls f and g repeatedly with arbitrary values for each argument.251// If f and g return different answers, CheckEqual returns a *CheckEqualError252// describing the input and the outputs.253func CheckEqual(f, g interface{}, config *Config) (err error) {254	if config == nil {255		config = &defaultConfig256	}257	x, xType, ok := functionAndType(f)258	if !ok {259		err = SetupError("f is not a function")260		return261	}262	y, yType, ok := functionAndType(g)263	if !ok {264		err = SetupError("g is not a function")265		return266	}267	if xType != yType {268		err = SetupError("functions have different types")269		return270	}271	arguments := make([]reflect.Value, xType.NumIn())272	rand := config.getRand()273	maxCount := config.getMaxCount()274	for i := 0; i < maxCount; i++ {275		err = arbitraryValues(arguments, xType, config, rand)276		if err != nil {277			return278		}279		xOut := toInterfaces(x.Call(arguments))280		yOut := toInterfaces(y.Call(arguments))281		if !reflect.DeepEqual(xOut, yOut) {282			err = &CheckEqualError{CheckError{i + 1, toInterfaces(arguments)}, xOut, yOut}283			return284		}285	}286	return287}288// arbitraryValues writes Values to args such that args contains Values289// suitable for calling f.290func arbitraryValues(args []reflect.Value, f reflect.Type, config *Config, rand *rand.Rand) (err error) {291	if config.Values != nil {292		config.Values(args, rand)293		return294	}295	for j := 0; j < len(args); j++ {296		var ok bool297		args[j], ok = Value(f.In(j), rand)298		if !ok {299			err = SetupError(fmt.Sprintf("cannot create arbitrary value of type %s for argument %d", f.In(j), j))300			return301		}302	}303	return304}305func functionAndType(f interface{}) (v reflect.Value, t reflect.Type, ok bool) {306	v = reflect.ValueOf(f)307	ok = v.Kind() == reflect.Func308	if !ok {309		return310	}311	t = v.Type()312	return313}314func toInterfaces(values []reflect.Value) []interface{} {315	ret := make([]interface{}, len(values))316	for i, v := range values {317		ret[i] = v.Interface()318	}319	return ret320}321func toString(interfaces []interface{}) string {322	s := make([]string, len(interfaces))323	for i, v := range interfaces {324		s[i] = fmt.Sprintf("%#v", v)325	}326	return strings.Join(s, ", ")327}...

handshake_messages_test.go

Source:handshake_messages_test.go

...86		r[i] = byte(rand.Int31())87	}88	return r89}90func randomString(n int, rand *rand.Rand) string {91	b := randomBytes(n, rand)92	return string(b)93}94func (*clientHelloMsg) Generate(rand *rand.Rand, size int) reflect.Value {95	m := &clientHelloMsg{}96	m.vers = uint16(rand.Intn(65536))97	m.random = randomBytes(32, rand)98	m.sessionId = randomBytes(rand.Intn(32), rand)99	m.cipherSuites = make([]uint16, rand.Intn(63)+1)100	for i := 0; i < len(m.cipherSuites); i++ {101		m.cipherSuites[i] = uint16(rand.Int31())102	}103	m.compressionMethods = randomBytes(rand.Intn(63)+1, rand)104	if rand.Intn(10) > 5 {105		m.nextProtoNeg = true106	}107	if rand.Intn(10) > 5 {108		m.serverName = randomString(rand.Intn(255), rand)109	}110	m.ocspStapling = rand.Intn(10) > 5111	m.supportedPoints = randomBytes(rand.Intn(5)+1, rand)112	m.supportedCurves = make([]CurveID, rand.Intn(5)+1)113	for i := range m.supportedCurves {114		m.supportedCurves[i] = CurveID(rand.Intn(30000))115	}116	if rand.Intn(10) > 5 {117		m.ticketSupported = true118		if rand.Intn(10) > 5 {119			m.sessionTicket = randomBytes(rand.Intn(300), rand)120		}121	}122	if rand.Intn(10) > 5 {123		m.signatureAndHashes = supportedSignatureAlgorithms124	}125	m.alpnProtocols = make([]string, rand.Intn(5))126	for i := range m.alpnProtocols {127		m.alpnProtocols[i] = randomString(rand.Intn(20)+1, rand)128	}129	if rand.Intn(10) > 5 {130		m.scts = true131	}132	return reflect.ValueOf(m)133}134func (*serverHelloMsg) Generate(rand *rand.Rand, size int) reflect.Value {135	m := &serverHelloMsg{}136	m.vers = uint16(rand.Intn(65536))137	m.random = randomBytes(32, rand)138	m.sessionId = randomBytes(rand.Intn(32), rand)139	m.cipherSuite = uint16(rand.Int31())140	m.compressionMethod = uint8(rand.Intn(256))141	if rand.Intn(10) > 5 {142		m.nextProtoNeg = true143		n := rand.Intn(10)144		m.nextProtos = make([]string, n)145		for i := 0; i < n; i++ {146			m.nextProtos[i] = randomString(20, rand)147		}148	}149	if rand.Intn(10) > 5 {150		m.ocspStapling = true151	}152	if rand.Intn(10) > 5 {153		m.ticketSupported = true154	}155	m.alpnProtocol = randomString(rand.Intn(32)+1, rand)156	if rand.Intn(10) > 5 {157		numSCTs := rand.Intn(4)158		m.scts = make([][]byte, numSCTs)159		for i := range m.scts {160			m.scts[i] = randomBytes(rand.Intn(500), rand)161		}162	}163	return reflect.ValueOf(m)164}165func (*certificateMsg) Generate(rand *rand.Rand, size int) reflect.Value {166	m := &certificateMsg{}167	numCerts := rand.Intn(20)168	m.certificates = make([][]byte, numCerts)169	for i := 0; i < numCerts; i++ {170		m.certificates[i] = randomBytes(rand.Intn(10)+1, rand)171	}172	return reflect.ValueOf(m)173}174func (*certificateRequestMsg) Generate(rand *rand.Rand, size int) reflect.Value {175	m := &certificateRequestMsg{}176	m.certificateTypes = randomBytes(rand.Intn(5)+1, rand)177	numCAs := rand.Intn(100)178	m.certificateAuthorities = make([][]byte, numCAs)179	for i := 0; i < numCAs; i++ {180		m.certificateAuthorities[i] = randomBytes(rand.Intn(15)+1, rand)181	}182	return reflect.ValueOf(m)183}184func (*certificateVerifyMsg) Generate(rand *rand.Rand, size int) reflect.Value {185	m := &certificateVerifyMsg{}186	m.signature = randomBytes(rand.Intn(15)+1, rand)187	return reflect.ValueOf(m)188}189func (*certificateStatusMsg) Generate(rand *rand.Rand, size int) reflect.Value {190	m := &certificateStatusMsg{}191	if rand.Intn(10) > 5 {192		m.statusType = statusTypeOCSP193		m.response = randomBytes(rand.Intn(10)+1, rand)194	} else {195		m.statusType = 42196	}197	return reflect.ValueOf(m)198}199func (*clientKeyExchangeMsg) Generate(rand *rand.Rand, size int) reflect.Value {200	m := &clientKeyExchangeMsg{}201	m.ciphertext = randomBytes(rand.Intn(1000)+1, rand)202	return reflect.ValueOf(m)203}204func (*finishedMsg) Generate(rand *rand.Rand, size int) reflect.Value {205	m := &finishedMsg{}206	m.verifyData = randomBytes(12, rand)207	return reflect.ValueOf(m)208}209func (*nextProtoMsg) Generate(rand *rand.Rand, size int) reflect.Value {210	m := &nextProtoMsg{}211	m.proto = randomString(rand.Intn(255), rand)212	return reflect.ValueOf(m)213}214func (*newSessionTicketMsg) Generate(rand *rand.Rand, size int) reflect.Value {215	m := &newSessionTicketMsg{}216	m.ticket = randomBytes(rand.Intn(4), rand)217	return reflect.ValueOf(m)218}219func (*sessionState) Generate(rand *rand.Rand, size int) reflect.Value {220	s := &sessionState{}221	s.vers = uint16(rand.Intn(10000))222	s.cipherSuite = uint16(rand.Intn(10000))223	s.masterSecret = randomBytes(rand.Intn(100), rand)224	numCerts := rand.Intn(20)225	s.certificates = make([][]byte, numCerts)...

String

Using AI Code Generation

1import (2func main() {3    rand.Seed(time.Now().UnixNano())4    fmt.Println(rand.Intn(100))5    fmt.Println(rand.Intn(100))6    fmt.Println(rand.Float64())7    fmt.Println((rand.Float64() * 5) + 5)

String

Using AI Code Generation

1import (2func main() {3	fmt.Println(rand.Int())4	fmt.Println(rand.Intn(100))5	fmt.Println(rand.Float32())6	fmt.Println(rand.Float64())7	fmt.Println(rand.Float64() * 5 + 5)8	fmt.Println(rand.Perm(5))9}10import (11func main() {12	fmt.Println(rand.Int())13	fmt.Println(rand.Intn(100))14	fmt.Println(rand.Float32())15	fmt.Println(rand.Float64())16	fmt.Println(rand.Float64() * 5 + 5)17	fmt.Println(rand.Perm(5))18}19import (20func main() {21	fmt.Println(rand.Int())22	fmt.Println(rand.Intn(100))23	fmt.Println(rand.Float32())24	fmt.Println(rand.Float64())25	fmt.Println(rand.Float64() * 5 + 5)26	fmt.Println(rand.Perm(5))27}28import (29func main() {30	fmt.Println(rand.Int())31	fmt.Println(rand.Intn(100))32	fmt.Println(rand.Float32())33	fmt.Println(rand.Float64())34	fmt.Println(rand.Float64() * 5 + 5)35	fmt.Println(rand.Perm(5))36}37import (38func main() {39	fmt.Println(rand.Int())40	fmt.Println(rand.Intn(100))41	fmt.Println(rand.Float32())42	fmt.Println(rand.Float64())43	fmt.Println(rand.Float64() * 5 + 5)44	fmt.Println(rand.Perm(5))45}46import (47func main() {48	fmt.Println(rand.Int())49	fmt.Println(rand.Intn(100))50	fmt.Println(rand.Float32())51	fmt.Println(rand.Float64())52	fmt.Println(rand.Float64() * 5 + 5)53	fmt.Println(rand.Perm(5))54}55import (

String

Using AI Code Generation

1import (2func main() {3    rand.Seed(time.Now().Unix())4    fmt.Println(rand.Intn(100))5    fmt.Println(rand.Float64())6    fmt.Println((rand.Float64() * 5) + 5)7    fmt.Println(rand.Intn(100) +

String

Using AI Code Generation

1import (2func main() {3	fmt.Println(randString(10))4}5func randString(n int) string {6	b := make([]byte, n)7	for i := range b {8		b[i] = letterBytes[rand.Intn(len(letterBytes))]9	}10	return string(b)11}

String

Using AI Code Generation

1import (2func main() {3	fmt.Println(rand.String(10))4}5import (6func main() {7	fmt.Println(rand.Int())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.Int

String

Using AI Code Generation

1import (2func main() {3	fmt.Println(rand.String(6))4	fmt.Println(rand.String(10))5}6import (7func main() {8	fmt.Println(rand.String(6))9	fmt.Println(rand.String(10))10}11import (12func main() {13	fmt.Println(rand.String(6))14	fmt.Println(rand.String(10))15}16import (17func main() {18	fmt.Println(rand.String(6))19	fmt.Println(rand.String(10))20}21import (22func main() {23	fmt.Println(rand.String(6))24	fmt.Println(rand.String(10))25}26import (27func main() {28	fmt.Println(rand.String(6))29	fmt.Println(rand.String(10))30}31import (32func main() {33	fmt.Println(rand.String(6))34	fmt.Println(rand.String(10))35}

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