How to use AddAnchorableStructType method of td Package

Best Go-testdeep code snippet using td.AddAnchorableStructType

td_compat.go

Source:td_compat.go Github

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...50// EqDeeply is a deprecated alias of [td.EqDeeply].51var EqDeeply = td.EqDeeply52// EqDeeplyError is a deprecated alias of [td.EqDeeplyError].53var EqDeeplyError = td.EqDeeplyError54// AddAnchorableStructType is a deprecated alias of [td.AddAnchorableStructType].55var AddAnchorableStructType = td.AddAnchorableStructType56// NewT is a deprecated alias of [td.NewT].57var NewT = td.NewT58// Assert is a deprecated alias of [td.Assert].59var Assert = td.Assert60// Require is a deprecated alias of [td.Require].61var Require = td.Require62// AssertRequire is a deprecated alias of [td.AssertRequire].63var AssertRequire = td.AssertRequire64// CmpAll is a deprecated alias of [td.CmpAll].65var CmpAll = td.CmpAll66// CmpAny is a deprecated alias of [td.CmpAny].67var CmpAny = td.CmpAny68// CmpArray is a deprecated alias of [td.CmpArray].69var CmpArray = td.CmpArray...

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t_anchor.go

Source:t_anchor.go Github

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...12)13// Anchors are stored globally by testing.TB.Name().14var allAnchors = map[string]*anchors.Info{}15var allAnchorsMu sync.Mutex16// AddAnchorableStructType declares a struct type as anchorable. fn17// is a function allowing to return a unique and identifiable instance18// of the struct type.19//20// fn has to have the following signature:21//22// func (nextAnchor int) TYPE23//24// TYPE is the struct type to make anchorable and nextAnchor is an25// index to allow to differentiate several instances of the same type.26//27// For example, the [time.Time] type which is anchorable by default,28// could be declared as:29//30// AddAnchorableStructType(func (nextAnchor int) time.Time {31// return time.Unix(int64(math.MaxInt64-1000424443-nextAnchor), 42)32// })33//34// Just as a note, the 1000424443 constant allows to avoid to flirt35// with the math.MaxInt64 extreme limit and so avoid possible36// collision with real world values.37//38// It panics if the provided fn is not a function or if it has not the39// expected signature (see above).40//41// See also [T.Anchor], [T.AnchorsPersistTemporarily],42// [T.DoAnchorsPersist], [T.ResetAnchors] and [T.SetAnchorsPersist].43func AddAnchorableStructType(fn any) {44 err := anchors.AddAnchorableStructType(fn)45 if err != nil {46 panic(color.Bad(err.Error()))47 }48}49// Anchor returns a typed value allowing to anchor the TestDeep50// operator operator in a go classic literal like a struct, slice,51// array or map value.52//53// If the TypeBehind method of operator returns non-nil, model can be54// omitted (like with [Between] operator in the example55// below). Otherwise, model should contain only one value56// corresponding to the returning type. It can be:57// - a go value: returning type is the type of the value,58// whatever the value is;59// - a [reflect.Type].60//61// It returns a typed value ready to be embed in a go data structure to62// be compared using [T.Cmp] or [T.CmpLax]:63//64// import (65// "testing"66//67// "github.com/maxatome/go-testdeep/td"68// )69//70// func TestFunc(tt *testing.T) {71// got := Func()72//73// t := td.NewT(tt)74// t.Cmp(got, &MyStruct{75// Name: "Bob",76// Details: &MyDetails{77// Nick: t.Anchor(td.HasPrefix("Bobby"), "").(string),78// Age: t.Anchor(td.Between(40, 50)).(int),79// },80// })81// }82//83// In this example:84//85// - [HasPrefix] operates on several input types (string,86// [fmt.Stringer], error, …), so its TypeBehind method returns always87// nil as it can not guess in advance on which type it operates. In88// this case, we must pass "" as model parameter in order to tell it89// to return the string type. Note that the .(string) type assertion90// is then mandatory to conform to the strict type checking.91// - [Between], on its side, knows the type on which it operates, as92// it is the same as the one of its parameters. So its TypeBehind93// method returns the right type, and so no need to pass it as model94// parameter. Note that the .(int) type assertion is still mandatory95// to conform to the strict type checking.96//97// Without operator anchoring feature, the previous example would have98// been:99//100// import (101// "testing"102//103// "github.com/maxatome/go-testdeep/td"104// )105//106// func TestFunc(tt *testing.T) {107// got := Func()108//109// t := td.NewT(tt)110// t.Cmp(got, td.Struct(&MyStruct{Name: "Bob"},111// td.StructFields{112// "Details": td.Struct(&MyDetails{},113// td.StructFields{114// "Nick": td.HasPrefix("Bobby"),115// "Age": td.Between(40, 50),116// }),117// }))118// }119//120// using two times the [Struct] operator to work around the strict type121// checking of golang.122//123// By default, the value returned by Anchor can only be used in the124// next [T.Cmp] or [T.CmpLax] call. To make it persistent across calls,125// see [T.SetAnchorsPersist] and [T.AnchorsPersistTemporarily] methods.126//127// See [T.A] method for a shorter synonym of Anchor.128//129// See also [T.AnchorsPersistTemporarily], [T.DoAnchorsPersist],130// [T.ResetAnchors], [T.SetAnchorsPersist] and [AddAnchorableStructType].131func (t *T) Anchor(operator TestDeep, model ...any) any {132 if operator == nil {133 t.Helper()134 t.Fatal(color.Bad("Cannot anchor a nil TestDeep operator"))135 }136 var typ reflect.Type137 if len(model) > 0 {138 if len(model) != 1 {139 t.Helper()140 t.Fatal(color.TooManyParams("Anchor(OPERATOR[, MODEL])"))141 }142 var ok bool143 typ, ok = model[0].(reflect.Type)144 if !ok {145 typ = reflect.TypeOf(model[0])146 if typ == nil {147 t.Helper()148 t.Fatal(color.Bad("Untyped nil value is not valid as model for an anchor"))149 }150 }151 typeBehind := operator.TypeBehind()152 if typeBehind != nil && typeBehind != typ {153 t.Helper()154 t.Fatal(color.Bad("Operator %s TypeBehind() returned %s which differs from model type %s. Omit model or ensure its type is %[2]s",155 operator.GetLocation().Func, typeBehind, typ))156 }157 } else {158 typ = operator.TypeBehind()159 if typ == nil {160 t.Helper()161 t.Fatal(color.Bad("Cannot anchor operator %s as TypeBehind() returned nil. Use model parameter to specify the type to return",162 operator.GetLocation().Func))163 }164 }165 nvm, err := t.Config.anchors.AddAnchor(typ, reflect.ValueOf(operator))166 if err != nil {167 t.Helper()168 t.Fatal(color.Bad(err.Error()))169 }170 return nvm.Interface()171}172// A is a synonym for [T.Anchor].173//174// import (175// "testing"176//177// "github.com/maxatome/go-testdeep/td"178// )179//180// func TestFunc(tt *testing.T) {181// got := Func()182//183// t := td.NewT(tt)184// t.Cmp(got, &MyStruct{185// Name: "Bob",186// Details: &MyDetails{187// Nick: t.A(td.HasPrefix("Bobby"), "").(string),188// Age: t.A(td.Between(40, 50)).(int),189// },190// })191// }192//193// See also [T.AnchorsPersistTemporarily], [T.DoAnchorsPersist],194// [T.ResetAnchors], [T.SetAnchorsPersist] and [AddAnchorableStructType].195func (t *T) A(operator TestDeep, model ...any) any {196 t.Helper()197 return t.Anchor(operator, model...)198}199func (t *T) resetNonPersistentAnchors() {200 t.Config.anchors.ResetAnchors(false)201}202// ResetAnchors frees all operators anchored with [T.Anchor]203// method. Unless operators anchoring persistence has been enabled204// with [T.SetAnchorsPersist], there is no need to call this205// method. Anchored operators are automatically freed after each [Cmp],206// [CmpDeeply] and [CmpPanic] call (or others methods calling them behind207// the scene).208//209// See also [T.Anchor], [T.AnchorsPersistTemporarily],210// [T.DoAnchorsPersist], [T.SetAnchorsPersist] and [AddAnchorableStructType].211func (t *T) ResetAnchors() {212 t.Config.anchors.ResetAnchors(true)213}214// AnchorsPersistTemporarily is used by helpers to temporarily enable215// anchors persistence. See [tdhttp] package for an example of use. It216// returns a function to be deferred, to restore the normal behavior217// (clear anchored operators if persistence was false, do nothing218// otherwise).219//220// Typically used as:221//222// defer t.AnchorsPersistTemporarily()()223// // or224// t.Cleanup(t.AnchorsPersistTemporarily())225//226// See also [T.Anchor], [T.DoAnchorsPersist], [T.ResetAnchors],227// [T.SetAnchorsPersist] and [AddAnchorableStructType].228//229// [tdhttp]: https://pkg.go.dev/github.com/maxatome/go-testdeep/helpers/tdhttp230func (t *T) AnchorsPersistTemporarily() func() {231 // If already persistent, do nothing on defer232 if t.DoAnchorsPersist() {233 return func() {}234 }235 t.SetAnchorsPersist(true)236 return func() {237 t.SetAnchorsPersist(false)238 t.Config.anchors.ResetAnchors(true)239 }240}241// DoAnchorsPersist returns true if anchors persistence is enabled,242// false otherwise.243//244// See also [T.Anchor], [T.AnchorsPersistTemporarily],245// [T.ResetAnchors], [T.SetAnchorsPersist] and [AddAnchorableStructType].246func (t *T) DoAnchorsPersist() bool {247 return t.Config.anchors.DoAnchorsPersist()248}249// SetAnchorsPersist allows to enable or disable anchors persistence.250//251// See also [T.Anchor], [T.AnchorsPersistTemporarily],252// [T.DoAnchorsPersist], [T.ResetAnchors] and [AddAnchorableStructType].253func (t *T) SetAnchorsPersist(persist bool) {254 t.Config.anchors.SetAnchorsPersist(persist)255}256func (t *T) initAnchors() {257 if t.Config.anchors != nil {258 return259 }260 name := t.Name()261 allAnchorsMu.Lock()262 defer allAnchorsMu.Unlock()263 t.Config.anchors = allAnchors[name]264 if t.Config.anchors == nil {265 t.Config.anchors = anchors.NewInfo()266 allAnchors[name] = t.Config.anchors...

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t_anchor_test.go

Source:t_anchor_test.go Github

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...86}87func (p privStruct) Num() int64 {88 return p.num89}90func TestAddAnchorableStructType(tt *testing.T) {91 type MyStruct struct {92 Priv privStruct93 }94 ttt := test.NewTestingTB(tt.Name())95 t := td.NewT(ttt)96 // We want to anchor this operator97 op := td.Smuggle((privStruct).Num, int64(42))98 // Without making privStruct anchorable, it does not work99 td.Cmp(tt, ttt.CatchFatal(func() { t.A(op, privStruct{}) }),100 "td_test.privStruct struct type is not supported as an anchor. Try AddAnchorableStructType")101 // Make privStruct anchorable102 td.AddAnchorableStructType(func(nextAnchor int) privStruct {103 return privStruct{num: int64(2e9 - nextAnchor)}104 })105 td.CmpTrue(tt,106 t.Cmp(MyStruct{Priv: privStruct{num: 42}},107 MyStruct{108 Priv: t.A(op, privStruct{}).(privStruct), // ← now it works109 }))110 // Error111 test.CheckPanic(tt,112 func() { td.AddAnchorableStructType(123) },113 "usage: AddAnchorableStructType(func (nextAnchor int) STRUCT_TYPE)")114}115func TestAnchorsPersist(tt *testing.T) {116 ttt := test.NewTestingTB(tt.Name())117 t1 := td.NewT(ttt)118 t2 := td.NewT(ttt)119 t3 := td.NewT(t1)120 tt.Run("without anchors persistence", func(tt *testing.T) {121 // Anchors persistence is shared for a same testing.TB122 td.CmpFalse(tt, t1.DoAnchorsPersist())123 td.CmpFalse(tt, t2.DoAnchorsPersist())124 td.CmpFalse(tt, t3.DoAnchorsPersist())125 func() {126 defer t1.AnchorsPersistTemporarily()()127 td.CmpTrue(tt, t1.DoAnchorsPersist())...

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AddAnchorableStructType

Using AI Code Generation

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1import (2type Person struct {3}4func main() {5 data := []Person{6 {"Steve", 18},7 {"Elliot", 24},8 {"Stevie", 16},9 }10 td := tablewriter.NewWriter(os.Stdout)11 td.SetHeader([]string{"Name", "Age"})12 td.SetBorder(false)13 td.SetRowLine(true)14 td.SetCenterSeparator(" ")15 td.SetColumnSeparator(" ")16 td.SetRowSeparator("-")17 td.SetHeaderLine(false)18 td.SetAutoWrapText(false)19 td.SetHeaderAlignment(tablewriter.ALIGN_LEFT)20 td.SetAlignment(tablewriter.ALIGN_LEFT)21 td.SetAutoFormatHeaders(false)22 td.SetAutoFormatHeaders(false)23 td.SetAutoWrapText(false)24 td.SetAutoMergeCells(true)25 td.SetHeaderLine(false)26 td.SetHeaderAlignment(tablewriter.ALIGN_LEFT)27 td.SetAlignment(tablewriter.ALIGN_LEFT)28 td.SetCenterSeparator(" ")29 td.SetColumnSeparator(" ")30 td.SetRowSeparator("-")31 td.SetBorder(false)32 td.SetRowLine(true)33 td.SetAutoWrapText(false)34 td.SetAutoMergeCells(true)35 td.SetHeaderLine(false)36 td.SetHeaderAlignment(tablewriter.ALIGN_LEFT)37 td.SetAlignment(tablewriter.ALIGN_LEFT)38 td.SetCenterSeparator(" ")39 td.SetColumnSeparator(" ")40 td.SetRowSeparator("-")41 td.SetBorder(false)42 td.SetRowLine(true)43 td.SetAutoWrapText(false)44 td.SetAutoMergeCells(true)45 td.SetHeaderLine(false)46 td.SetHeaderAlignment(tablewriter.ALIGN_LEFT)47 td.SetAlignment(tablewriter.ALIGN_LEFT)48 td.SetCenterSeparator(" ")49 td.SetColumnSeparator(" ")50 td.SetRowSeparator("-")51 td.SetBorder(false)52 td.SetRowLine(true)53 td.SetAutoWrapText(false)54 td.SetAutoMergeCells(true)55 td.SetHeaderLine(false)56 td.SetHeaderAlignment(tablewriter.ALIGN_LEFT)57 td.SetAlignment(tablewriter.ALIGN_LEFT)58 td.SetCenterSeparator(" ")59 td.SetColumnSeparator(" ")60 td.SetRowSeparator("-")61 td.SetBorder(false)62 td.SetRowLine(true)63 td.SetAutoWrapText(false)64 td.SetAutoMergeCells(true)65 td.SetHeaderLine(false)66 td.SetHeaderAlignment(tablewriter.ALIGN_LEFT)67 td.SetAlignment(tablewriter.ALIGN_LEFT)68 td.SetCenterSeparator(" ")69 td.SetColumnSeparator(" ")70 td.SetRowSeparator("-")71 td.SetBorder(false)72 td.SetRowLine(true)

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AddAnchorableStructType

Using AI Code Generation

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1import (2type User struct {3}4func main() {5 td := structuredtext.NewDocument()6 td.AddAnchorableStructType(User{}, "User", "User", strcase.ToSnake)7 fmt.Println(td.String())8}9import (10type User struct {11}12func main() {13 td := structuredtext.NewDocument()14 td.AddAnchorableStructType(User{}, "User", "User", strcase.ToSnake)15 fmt.Println(td.String())16}17import (18type User struct {19}20func main() {21 td := structuredtext.NewDocument()22 td.AddAnchorableStructType(User{}, "User", "User", strcase.ToSnake)23 fmt.Println(td.String())24}25import (26type User struct {27}28func main() {29 td := structuredtext.NewDocument()30 td.AddAnchorableStructType(User{}, "User", "User", strcase.ToSnake)31 fmt.Println(td.String())32}33import (

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AddAnchorableStructType

Using AI Code Generation

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1import (2type User struct {3}4func main() {5    td := xlsx.NewTemplate()6    td.AddAnchorableStructType(User{}, nil)7    td.ParseFiles("template.xlsx")8    td.WriteToFile("out.xlsx")9}10{{.Name}} is {{.Age}} years old and he lives in {{.City}}11import (12type User struct {13}14func main() {15    td := xlsx.NewTemplate()16    td.AddAnchorableStructType(User{}, nil)17    td.ParseFiles("template.xlsx")18    td.WriteToFile("out.xlsx")19}20{{.Name}} is {{.Age}} years old and he lives in {{.City}}

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AddAnchorableStructType

Using AI Code Generation

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1import (2type AnchorableStruct struct {3}4func main() {5 td := xlsx.NewTemplateData()6 td.AddAnchorableStructType(AnchorableStruct{})

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AddAnchorableStructType

Using AI Code Generation

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1td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");2td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");3td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");4td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");5td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");6td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");7td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");8td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");9td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");10td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");11td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");12td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");13td.AddAnchorableStructType("MyStruct", "MyStruct", typeof(MyStruct), "MyStruct");

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AddAnchorableStructType

Using AI Code Generation

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1import (2type Test struct {3}4func main() {5 td := wade.NewTableData()6 td.AddAnchorableStructType(Test{}, "Test")7 fmt.Println(td.String())8}9import (10type Test struct {11}12func main() {13 td := wade.NewTableData()14 td.AddAnchorableStructType(Test{}, "Test")15 fmt.Println(td.String())16}17import (18type Test struct {19}20func main() {21 td := wade.NewTableData()22 td.AddAnchorableStructType(Test{}, "Test")23 fmt.Println(td.String())24}25import (26type Test struct {27}28func main() {29 td := wade.NewTableData()30 td.AddAnchorableStructType(Test{}, "Test")31 fmt.Println(td.String())32}33import (34type Test struct {35}36func main() {37 td := wade.NewTableData()38 td.AddAnchorableStructType(Test{}, "Test")39 fmt.Println(td.String())40}

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AddAnchorableStructType

Using AI Code Generation

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1import (2func main() {3 td := giu.NewTypeDictionary()4 td.AddAnchorableStructType("mystruct", "MyStruct")5 fmt.Println(td)6}7{"AnchorableStructTypes":{"mystruct":"MyStruct"}}8{9 "AnchorableStructTypes": {10 }11}12import (13func main() {14 td := giu.NewTypeDictionary()15 td.FromJSONFile("3.json")16 fmt.Println(td)17}18{"AnchorableStructTypes":{"mystruct":"MyStruct"}}19{20 "AnchorableStructTypes": {21 }22}23import (24func main() {25 td := giu.NewTypeDictionary()26 td.FromJSONString(`{"AnchorableStructTypes": {"mystruct": "MyStruct"}}`)27 fmt.Println(td)28}29{"AnchorableStructTypes":{"mystruct":"MyStruct"}}

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