How to use Recv method of td Package

Best Go-testdeep code snippet using td.Recv

td_recv.go

Source:td_recv.go Github

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...10 "time"11 "github.com/maxatome/go-testdeep/internal/ctxerr"12 "github.com/maxatome/go-testdeep/internal/types"13)14// A RecvKind allows to match that nothing has been received on a15// channel or that a channel has been closed when using [Recv]16// operator.17type RecvKind = types.RecvKind18const (19 _ RecvKind = (iota & 1) == 020 RecvNothing // nothing read on channel21 RecvClosed // channel closed22)23type tdRecv struct {24 tdSmugglerBase25 timeout time.Duration26}27var _ TestDeep = &tdRecv{}28// summary(Recv): checks the value read from a channel29// input(Recv): chan,ptr(ptr on chan)30// Recv is a smuggler operator. It reads from a channel or a pointer31// to a channel and compares the read value to expectedValue.32//33// expectedValue can be any value including a [TestDeep] operator. It34// can also be [RecvNothing] to test nothing can be read from the35// channel or [RecvClosed] to check the channel is closed.36//37// If timeout is passed it should be only one item. It means: try to38// read the channel during this duration to get a value before giving39// up. If timeout is missing or ≤ 0, it defaults to 0 meaning Recv40// does not wait for a value but gives up instantly if no value is41// available on the channel.42//43// ch := make(chan int, 6)44// td.Cmp(t, ch, td.Recv(td.RecvNothing)) // succeeds45// td.Cmp(t, ch, td.Recv(42)) // fails, nothing to receive46// // recv(DATA): values differ47// // got: nothing received on channel48// // expected: 4249//50// ch <- 4251// td.Cmp(t, ch, td.Recv(td.RecvNothing)) // fails, 42 received instead52// // recv(DATA): values differ53// // got: 4254// // expected: nothing received on channel55//56// td.Cmp(t, ch, td.Recv(42)) // fails, nothing to receive anymore57// // recv(DATA): values differ58// // got: nothing received on channel59// // expected: 4260//61// ch <- 66662// td.Cmp(t, ch, td.Recv(td.Between(600, 700))) // succeeds63//64// close(ch)65// td.Cmp(t, ch, td.Recv(td.RecvNothing)) // fails as channel is closed66// // recv(DATA): values differ67// // got: channel is closed68// // expected: nothing received on channel69//70// td.Cmp(t, ch, td.Recv(td.RecvClosed)) // succeeds71//72// Note that for convenience Recv accepts pointer on channel:73//74// ch := make(chan int, 6)75// ch <- 4276// td.Cmp(t, &ch, td.Recv(42)) // succeeds77//78// Each time Recv is called, it tries to consume one item from the79// channel, immediately or, if given, before timeout duration. To80// consume several items in a same [Cmp] call, one can use [All]81// operator as in:82//83// ch := make(chan int, 6)84// ch <- 185// ch <- 286// ch <- 387// close(ch)88// td.Cmp(t, ch, td.All( // succeeds89// td.Recv(1),90// td.Recv(2),91// td.Recv(3),92// td.Recv(td.RecvClosed),93// ))94//95// To check nothing can be received during 100ms on channel ch (if96// something is received before, including a close, it fails):97//98// td.Cmp(t, ch, td.Recv(td.RecvNothing, 100*time.Millisecond))99//100// note that in case of success, the above [Cmp] call always lasts 100ms.101//102// To check 42 can be received from channel ch during the next 100ms103// (if nothing is received during these 100ms or something different104// from 42, including a close, it fails):105//106// td.Cmp(t, ch, td.Recv(42, 100*time.Millisecond))107//108// note that in case of success, the above [Cmp] call lasts less than 100ms.109//110// A nil channel is not handled specifically, so it “is never ready111// for communication” as specification says:112//113// var ch chan int114// td.Cmp(t, ch, td.Recv(td.RecvNothing)) // always succeeds115// td.Cmp(t, ch, td.Recv(42)) // or any other value, always fails116// td.Cmp(t, ch, td.Recv(td.RecvClosed)) // always fails117//118// so to check if a channel is not nil before reading from it, one can119// either do:120//121// td.Cmp(t, ch, td.All(122// td.NotNil(),123// td.Recv(42),124// ))125// // or126// if td.Cmp(t, ch, td.NotNil()) {127// td.Cmp(t, ch, td.Recv(42))128// }129//130// TypeBehind method returns the [reflect.Type] of expectedValue,131// except if expectedValue is a [TestDeep] operator. In this case, it132// delegates TypeBehind() to the operator.133//134// See also [Cap] and [Len].135func Recv(expectedValue any, timeout ...time.Duration) TestDeep {136 r := tdRecv{}137 r.tdSmugglerBase = newSmugglerBase(expectedValue, 0)138 if !r.isTestDeeper {139 r.expectedValue = reflect.ValueOf(expectedValue)140 }141 switch len(timeout) {142 case 0:143 case 1:144 r.timeout = timeout[0]145 default:146 r.err = ctxerr.OpTooManyParams(r.location.Func, "(EXPECTED[, TIMEOUT])")147 }148 return &r149}150func (r *tdRecv) Match(ctx ctxerr.Context, got reflect.Value) *ctxerr.Error {151 if r.err != nil {152 return ctx.CollectError(r.err)153 }154 switch got.Kind() {155 case reflect.Ptr:156 gotElem := got.Elem()157 if !gotElem.IsValid() {158 if ctx.BooleanError {159 return ctxerr.BooleanError160 }161 return ctx.CollectError(ctxerr.NilPointer(got, "non-nil *chan"))162 }163 if gotElem.Kind() != reflect.Chan {164 break165 }166 got = gotElem167 fallthrough168 case reflect.Chan:169 cases := [2]reflect.SelectCase{170 {171 Dir: reflect.SelectRecv,172 Chan: got,173 },174 }175 var timer *time.Timer176 if r.timeout > 0 {177 timer = time.NewTimer(r.timeout)178 cases[1] = reflect.SelectCase{179 Dir: reflect.SelectRecv,180 Chan: reflect.ValueOf(timer.C),181 }182 } else {183 cases[1] = reflect.SelectCase{184 Dir: reflect.SelectDefault,185 }186 }187 chosen, recv, recvOK := reflect.Select(cases[:])188 if chosen == 1 && timer != nil {189 // check quickly both timeout & expected case didn't occur190 // concurrently and timeout masked the expected case191 cases[1] = reflect.SelectCase{192 Dir: reflect.SelectDefault,193 }194 chosen, recv, recvOK = reflect.Select(cases[:])195 }196 if chosen == 0 {197 if !recvOK {198 recv = reflect.ValueOf(RecvClosed)199 }200 if timer != nil {201 timer.Stop()202 }203 } else {204 recv = reflect.ValueOf(RecvNothing)205 }206 return deepValueEqual(ctx.AddFunctionCall("recv"), recv, r.expectedValue)207 }208 if ctx.BooleanError {209 return ctxerr.BooleanError210 }211 return ctx.CollectError(ctxerr.BadKind(got, "chan OR *chan"))212}213func (r *tdRecv) HandleInvalid() bool {214 return true // Knows how to handle untyped nil values (aka invalid values)215}216func (r *tdRecv) String() string {217 if r.err != nil {218 return r.stringError()219 }220 if r.isTestDeeper {221 return "recv: " + r.expectedValue.Interface().(TestDeep).String()222 }223 return fmt.Sprintf("recv=%d", r.expectedValue.Int())224}225func (r *tdRecv) TypeBehind() reflect.Type {226 if r.err != nil {227 return nil228 }229 return r.internalTypeBehind()230}...

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td_recv_test.go

Source:td_recv_test.go Github

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...10 "github.com/maxatome/go-testdeep/internal/test"11 "github.com/maxatome/go-testdeep/internal/types"12 "github.com/maxatome/go-testdeep/td"13)14func TestRecv(t *testing.T) {15 fillCh := func(ch chan int, val int) {16 ch <- val // td.Cmp17 ch <- val // EqDeeply aka boolean context18 ch <- val // EqDeeplyError19 ch <- val // interface + td.Cmp20 ch <- val // interface + EqDeeply aka boolean context21 ch <- val // interface + EqDeeplyError22 }23 mkCh := func(val int) chan int {24 ch := make(chan int, 6)25 fillCh(ch, val)26 close(ch)27 return ch28 }29 t.Run("all good", func(t *testing.T) {30 ch := mkCh(1)31 checkOK(t, ch, td.Recv(1))32 checkOK(t, ch, td.Recv(td.RecvClosed, 10*time.Microsecond))33 ch = mkCh(42)34 checkOK(t, ch, td.Recv(td.Between(40, 45)))35 checkOK(t, ch, td.Recv(td.RecvClosed))36 })37 t.Run("complete cycle", func(t *testing.T) {38 ch := make(chan int, 6)39 t.Run("empty", func(t *testing.T) {40 checkOK(t, ch, td.Recv(td.RecvNothing))41 checkOK(t, ch, td.Recv(td.RecvNothing, 10*time.Microsecond))42 checkOK(t, &ch, td.Recv(td.RecvNothing))43 checkOK(t, &ch, td.Recv(td.RecvNothing, 10*time.Microsecond))44 })45 t.Run("just filled", func(t *testing.T) {46 fillCh(ch, 33)47 checkOK(t, ch, td.Recv(33))48 fillCh(ch, 34)49 checkOK(t, &ch, td.Recv(34))50 })51 t.Run("nothing to recv on channel", func(t *testing.T) {52 checkError(t, ch, td.Recv(td.RecvClosed),53 expectedError{54 Message: mustBe("values differ"),55 Path: mustBe("recv(DATA)"),56 Got: mustBe("nothing received on channel"),57 Expected: mustBe("channel is closed"),58 })59 checkError(t, &ch, td.Recv(td.RecvClosed),60 expectedError{61 Message: mustBe("values differ"),62 Path: mustBe("recv(DATA)"),63 Got: mustBe("nothing received on channel"),64 Expected: mustBe("channel is closed"),65 })66 checkError(t, ch, td.Recv(42),67 expectedError{68 Message: mustBe("values differ"),69 Path: mustBe("recv(DATA)"),70 Got: mustBe("nothing received on channel"),71 Expected: mustBe("42"),72 })73 checkError(t, &ch, td.Recv(42),74 expectedError{75 Message: mustBe("values differ"),76 Path: mustBe("recv(DATA)"),77 Got: mustBe("nothing received on channel"),78 Expected: mustBe("42"),79 })80 })81 close(ch)82 t.Run("closed channel", func(t *testing.T) {83 checkError(t, ch, td.Recv(td.RecvNothing),84 expectedError{85 Message: mustBe("values differ"),86 Path: mustBe("recv(DATA)"),87 Got: mustBe("channel is closed"),88 Expected: mustBe("nothing received on channel"),89 })90 checkError(t, &ch, td.Recv(td.RecvNothing),91 expectedError{92 Message: mustBe("values differ"),93 Path: mustBe("recv(DATA)"),94 Got: mustBe("channel is closed"),95 Expected: mustBe("nothing received on channel"),96 })97 checkError(t, ch, td.Recv(42),98 expectedError{99 Message: mustBe("values differ"),100 Path: mustBe("recv(DATA)"),101 Got: mustBe("channel is closed"),102 Expected: mustBe("42"),103 })104 checkError(t, &ch, td.Recv(42),105 expectedError{106 Message: mustBe("values differ"),107 Path: mustBe("recv(DATA)"),108 Got: mustBe("channel is closed"),109 Expected: mustBe("42"),110 })111 })112 })113 t.Run("nil channel", func(t *testing.T) {114 var ch chan int115 checkError(t, ch, td.Recv(42),116 expectedError{117 Message: mustBe("values differ"),118 Path: mustBe("recv(DATA)"),119 Got: mustBe("nothing received on channel"),120 Expected: mustBe("42"),121 })122 checkError(t, &ch, td.Recv(42),123 expectedError{124 Message: mustBe("values differ"),125 Path: mustBe("recv(DATA)"),126 Got: mustBe("nothing received on channel"),127 Expected: mustBe("42"),128 })129 })130 t.Run("nil pointer", func(t *testing.T) {131 checkError(t, (*chan int)(nil), td.Recv(42),132 expectedError{133 Message: mustBe("nil pointer"),134 Path: mustBe("DATA"),135 Got: mustBe("nil *chan (*chan int type)"),136 Expected: mustBe("non-nil *chan"),137 })138 })139 t.Run("chan any", func(t *testing.T) {140 ch := make(chan any, 6)141 fillCh := func(val any) {142 ch <- val // td.Cmp143 ch <- val // EqDeeply aka boolean context144 ch <- val // EqDeeplyError145 ch <- val // interface + td.Cmp146 ch <- val // interface + EqDeeply aka boolean context147 ch <- val // interface + EqDeeplyError148 }149 fillCh(1)150 checkOK(t, ch, td.Recv(1))151 fillCh(nil)152 checkOK(t, ch, td.Recv(nil))153 close(ch)154 checkOK(t, ch, td.Recv(td.RecvClosed))155 })156 t.Run("errors", func(t *testing.T) {157 checkError(t, "never tested",158 td.Recv(23, time.Second, time.Second),159 expectedError{160 Message: mustBe("bad usage of Recv operator"),161 Path: mustBe("DATA"),162 Summary: mustBe("usage: Recv(EXPECTED[, TIMEOUT]), too many parameters"),163 })164 checkError(t, 42, td.Recv(33),165 expectedError{166 Message: mustBe("bad kind"),167 Path: mustBe("DATA"),168 Got: mustBe("int"),169 Expected: mustBe("chan OR *chan"),170 })171 checkError(t, &struct{}{}, td.Recv(33),172 expectedError{173 Message: mustBe("bad kind"),174 Path: mustBe("DATA"),175 Got: mustBe("*struct (*struct {} type)"),176 Expected: mustBe("chan OR *chan"),177 })178 checkError(t, nil, td.Recv(33),179 expectedError{180 Message: mustBe("bad kind"),181 Path: mustBe("DATA"),182 Got: mustBe("nil"),183 Expected: mustBe("chan OR *chan"),184 })185 })186}187func TestRecvString(t *testing.T) {188 test.EqualStr(t, td.Recv(3).String(), "recv=3")189 test.EqualStr(t, td.Recv(td.Between(3, 8)).String(), "recv: 3 ≤ got ≤ 8")190 test.EqualStr(t, td.Recv(td.Gt(8)).String(), "recv: > 8")191 // Erroneous op192 test.EqualStr(t, td.Recv(3, 0, 0).String(), "Recv(<ERROR>)")193}194func TestRecvTypeBehind(t *testing.T) {195 equalTypes(t, td.Recv(3), 0)196 equalTypes(t, td.Recv(td.Between(3, 4)), 0)197 // Erroneous op198 equalTypes(t, td.Recv(3, 0, 0), nil)199}200func TestRecvKind(t *testing.T) {201 test.IsTrue(t, td.RecvNothing == types.RecvNothing)202 test.IsTrue(t, td.RecvClosed == types.RecvClosed)203}...

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http.go

Source:http.go Github

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...37 total.Added += mgr.Added38 total.Deleted += mgr.Deleted39 total.New += mgr.New40 total.SentRepros += mgr.SentRepros41 total.RecvRepros += mgr.RecvRepros42 data.Managers = append(data.Managers, UIManager{43 Name: name,44 Corpus: len(mgr.Corpus.Records),45 Added: mgr.Added,46 Deleted: mgr.Deleted,47 New: mgr.New,48 SentRepros: mgr.SentRepros,49 RecvRepros: mgr.RecvRepros,50 })51 }52 sort.Sort(UIManagerArray(data.Managers))53 data.Managers = append([]UIManager{total}, data.Managers...)54 if err := summaryTemplate.Execute(w, data); err != nil {55 log.Logf(0, "failed to execute template: %v", err)56 http.Error(w, fmt.Sprintf("failed to execute template: %v", err), http.StatusInternalServerError)57 return58 }59}60func compileTemplate(html string) *template.Template {61 return template.Must(template.New("").Parse(strings.Replace(html, "{{STYLE}}", htmlStyle, -1)))62}63type UISummaryData struct {64 Managers []UIManager65 Log string66}67type UIManager struct {68 Name string69 Corpus int70 Added int71 Deleted int72 New int73 Repros int74 SentRepros int75 RecvRepros int76}77type UIManagerArray []UIManager78func (a UIManagerArray) Len() int { return len(a) }79func (a UIManagerArray) Less(i, j int) bool { return a[i].Name < a[j].Name }80func (a UIManagerArray) Swap(i, j int) { a[i], a[j] = a[j], a[i] }81var summaryTemplate = compileTemplate(`82<!doctype html>83<html>84<head>85 <title>syz-hub</title>86 {{STYLE}}87</head>88<body>89<b>syz-hub</b>90<br><br>91<table>92 <caption>Managers:</caption>93 <tr>94 <th>Name</th>95 <th>Corpus</th>96 <th>Added</th>97 <th>Deleted</th>98 <th>New</th>99 <th>Repros</th>100 <th>Sent</th>101 <th>Recv</th>102 </tr>103 {{range $m := $.Managers}}104 <tr>105 <td>{{$m.Name}}</td>106 <td>{{$m.Corpus}}</td>107 <td>{{$m.Added}}</td>108 <td>{{$m.Deleted}}</td>109 <td>{{$m.New}}</td>110 <td>{{$m.Repros}}</td>111 <td>{{$m.SentRepros}}</td>112 <td>{{$m.RecvRepros}}</td>113 </tr>114 {{end}}115</table>116<br><br>117Log:118<br>119<textarea id="log_textarea" readonly rows="50">120{{.Log}}121</textarea>122<script>123 var textarea = document.getElementById("log_textarea");124 textarea.scrollTop = textarea.scrollHeight;125</script>126</body></html>...

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Recv

Using AI Code Generation

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1import "fmt"2func main(){3 fmt.Println("t.a = ",t.a)4 fmt.Println("t.b = ",t.b)5 fmt.Println("t.c = ",t.c)6 fmt.Println("t.d = ",t.d)7 t.recv()8}9import "fmt"10func main(){11 fmt.Println("t.a = ",t.a)12 fmt.Println("t.b = ",t.b)13 fmt.Println("t.c = ",t.c)14 fmt.Println("t.d = ",t.d)15 t.recv()16}17import "fmt"18func main(){19 fmt.Println("t.a = ",t.a)20 fmt.Println("t.b = ",t.b)21 fmt.Println("t.c = ",t.c)22 fmt.Println("t.d = ",t.d)23 t.recv()24}25import "fmt"26func main(){27 fmt.Println("t.a = ",t.a)28 fmt.Println("t.b = ",t.b)29 fmt.Println("t.c = ",t.c)30 fmt.Println("t.d = ",t.d)31 t.recv()32}33import "fmt"34func main(){35 fmt.Println("t.a = ",t.a)36 fmt.Println("

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Recv

Using AI Code Generation

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1import (2type td struct {3}4func main() {5 fmt.Println(t)6 fmt.Println(reflect.TypeOf(t))7}8{10 Hello 3.14159}9import (10type td struct {11}12func (t td) Recv() {13 fmt.Println(t)14 fmt.Println(reflect.TypeOf(t))15}16func main() {17 t.Recv()18}19{10 Hello 3.14159}20import (21type td struct {22}23func (t *td) Recv() {24 fmt.Println(t)25 fmt.Println(reflect.TypeOf(t))26}27func main() {28 t.Recv()29}30&{10 Hello 3.14159}31import (32type td struct {33}34func (t *td) Recv() {35 fmt.Println(t)36 fmt.Println(reflect.TypeOf(t))37}38func main() {39 p.Recv()40}41&{10 Hello 3.14159}42import (43type td struct {44}45func (t *td) Recv

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Recv

Using AI Code Generation

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

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Recv

Using AI Code Generation

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1import (2func main() {3 t = td.TD{2, 3}4 fmt.Println("Sum is ", t.Recv())5}6type TD struct {7}8func (t TD) Recv() int {9}10import (11func main() {12 t = td.TD{2, 3}13 fmt.Println("Sum is ", t.Recv())14}

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Recv

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1import (2func main() {3 td := td.New()4 td.Init()5 td2 := td.New()6 td2.Init()7 td3 := td.New()8 td3.Init()9 td4 := td.New()10 td4.Init()11 td5 := td.New()12 td5.Init()13 td6 := td.New()14 td6.Init()15 td7 := td.New()16 td7.Init()17 td8 := td.New()18 td8.Init()19 td9 := td.New()20 td9.Init()21 td10 := td.New()22 td10.Init()23 td11 := td.New()24 td11.Init()25 td12 := td.New()26 td12.Init()27 td13 := td.New()28 td13.Init()29 td14 := td.New()30 td14.Init()31 td15 := td.New()32 td15.Init()33 td16 := td.New()34 td16.Init()35 td17 := td.New()36 td17.Init()37 td18 := td.New()38 td18.Init()39 td19 := td.New()40 td19.Init()41 td20 := td.New()42 td20.Init()43 td21 := td.New()44 td21.Init()

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