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How to use AddAnchorableStructType method of anchors Package
Best Go-testdeep code snippet using anchors.AddAnchorableStructType
t_anchor.go
Source:t_anchor.go 
...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, â¦), 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...
anchor_test.go
Source:anchor_test.go
...64 oldAnchorableTypes := anchors.AnchorableTypes65 defer func() { anchors.AnchorableTypes = oldAnchorableTypes }()66 type ok struct{ index int }67 // AddAnchor for ok type68 err := anchors.AddAnchorableStructType(func(nextAnchor int) ok {69 return ok{index: 1000 + nextAnchor}70 })71 if err != nil {72 t.Fatalf("AddAnchorableStructType failed: %s", err)73 }74 checkResolveAnchor(t, ok{}, "ok{}")75 // AddAnchor for ok convertible type76 type okConvert ok77 checkResolveAnchor(t, okConvert{}, "okConvert{}")78 // Replace ok type79 err = anchors.AddAnchorableStructType(func(nextAnchor int) ok {80 return ok{index: 2000 + nextAnchor}81 })82 if err != nil {83 t.Fatalf("AddAnchorableStructType failed: %s", err)84 }85 if len(anchors.AnchorableTypes) != 2 {86 t.Fatalf("Bad number of anchored type: got=%d expected=2",87 len(anchors.AnchorableTypes))88 }89 checkResolveAnchor(t, ok{}, "ok{}")90 // AddAnchor for builtin time.Time type91 checkResolveAnchor(t, time.Time{}, "time.Time{}")92 // AddAnchor for unknown type93 _, err = i.AddAnchor(reflect.TypeOf(func() {}), reflect.ValueOf(123))94 if test.Error(t, err) {95 test.EqualStr(t, err.Error(), "func kind is not supported as an anchor")96 }97 // AddAnchor for unknown struct type98 _, err = i.AddAnchor(reflect.TypeOf(struct{}{}), reflect.ValueOf(123))99 if test.Error(t, err) {100 test.EqualStr(t,101 err.Error(),102 "struct {} struct type is not supported as an anchor. Try AddAnchorableStructType")103 }104 // Struct not comparable105 type notComparable struct{ s []int }106 v := reflect.ValueOf(notComparable{s: []int{42}})107 op, found := i.ResolveAnchor(v)108 test.IsFalse(t, found)109 if !reflect.DeepEqual(v.Interface(), op.Interface()) {110 test.EqualErrorMessage(t, op.Interface(), v.Interface())111 }112 // Struct comparable but not anchored113 v = reflect.ValueOf(struct{}{})114 op, found = i.ResolveAnchor(v)115 test.IsFalse(t, found)116 if !reflect.DeepEqual(v.Interface(), op.Interface()) {...
types_test.go
Source:types_test.go
...8 "strings"9 "testing"10 "github.com/maxatome/go-testdeep/internal/anchors"11)12func TestAddAnchorableStructType(t *testing.T) {13 oldAnchorableTypes := anchors.AnchorableTypes14 defer func() { anchors.AnchorableTypes = oldAnchorableTypes }()15 type ok struct{ index int }16 type notComparable struct{ s []int } //nolint: unused17 // Usage error cases18 for i, fn := range []any{19 12,20 func(x ...int) {},21 func(x, y int) {},22 func(x int) (int, int) { return 0, 0 },23 func(x byte) int { return 0 },24 func(x int) int { return 0 },25 } {26 err := anchors.AddAnchorableStructType(fn)27 if err == nil {28 t.Fatalf("#%d function should return an error", i)29 }30 if !strings.HasPrefix(err.Error(), "usage: ") {31 t.Errorf("#%d function returned: `%s` instead of usage", i, err)32 }33 }34 // Not comparable struct35 err := anchors.AddAnchorableStructType(func(nextAnchor int) notComparable {36 return notComparable{}37 })38 if err == nil {39 t.Fatal("function should return an error")40 }41 if err.Error() != "type anchors_test.notComparable is not comparable, it cannot be anchorable" {42 t.Errorf("function returned: `%s` instead of not comparable error", err)43 }44 // Comparable struct => OK45 err = anchors.AddAnchorableStructType(func(nextAnchor int) ok {46 return ok{index: 1000 + nextAnchor}47 })48 if err != nil {49 t.Fatalf("AddAnchorableStructType failed: %s", err)50 }51 if len(anchors.AnchorableTypes) != 2 {52 t.Fatalf("Bad number of anchored type: got=%d expected=2",53 len(anchors.AnchorableTypes))54 }55}...
AddAnchorableStructType
Using AI Code Generation
1import (2func main() {3 file = xlsx.NewFile()4 sheet, err = file.AddSheet("Sheet1")5 if err != nil {6 fmt.Printf(err.Error())7 }8 row = sheet.AddRow()9 cell = row.AddCell()10 cell = row.AddCell()11 cell = row.AddCell()12 cell = row.AddCell()13 cell = row.AddCell()14 cell = row.AddCell()15 err = file.Save("Test.xlsx")16 if err != nil {17 fmt.Printf(err.Error())18 }19}20import (21func main() {22 file = xlsx.NewFile()23 sheet, err = file.AddSheet("Sheet1")24 if err != nil {25 fmt.Printf(err.Error())26 }27 row = sheet.AddRow()28 cell = row.AddCell()29 cell = row.AddCell()30 cell = row.AddCell()31 cell = row.AddCell()32 cell = row.AddCell()33 cell = row.AddCell()34 err = file.Save("Test.xlsx")35 if err != nil {36 fmt.Printf(err.Error())37 }38}39import (40func main() {41 file = xlsx.NewFile()42 sheet, err = file.AddSheet("Sheet1")43 if err != nil {
AddAnchorableStructType
Using AI Code Generation
1import (2func main() {3 f := excelize.NewFile()4 index := f.NewSheet("Sheet2")5 f.SetCellValue("Sheet2", "A2", "Hello world.")6 f.SetCellValue("Sheet2", "B2", 100)7 f.SetActiveSheet(index)8 err := f.SaveAs("Book2.xlsx")9 if err != nil {10 fmt.Println(err)11 }12}13import (14func main() {15 f := excelize.NewFile()16 index := f.NewSheet("Sheet2")17 f.SetCellValue("Sheet2", "A2", "Hello world.")18 f.SetCellValue("Sheet2", "B2", 100)19 f.SetActiveSheet(index)20 err := f.SaveAs("Book2.xlsx")21 if err != nil {22 fmt.Println(err)23 }24}25import (26func main() {27 f := excelize.NewFile()28 index := f.NewSheet("Sheet2")29 f.SetCellValue("Sheet2", "A2", "Hello world.")30 f.SetCellValue("Sheet2", "B2", 100)
AddAnchorableStructType
Using AI Code Generation
1import (2func main() {3 f := excelize.NewFile()4 index := f.NewSheet("Sheet2")5 f.SetCellValue("Sheet2", "A2", "Hello world.")6 f.SetCellValue("Sheet2", "B2", 100)7 f.SetActiveSheet(index)8 if err := f.SaveAs("Book2.xlsx"); err != nil {9 fmt.Println(err)10 }11}12import (13func main() {14 f := excelize.NewFile()15 index := f.NewSheet("Sheet2")16 f.SetCellValue("Sheet2", "A2", "Hello world.")17 f.SetCellValue("Sheet2", "B2", 100)18 f.SetActiveSheet(index)19 if err := f.SaveAs("Book2.xlsx"); err != nil {20 fmt.Println(err)21 }22}23import (24func main() {25 f := excelize.NewFile()26 index := f.NewSheet("Sheet2")27 f.SetCellValue("Sheet2", "A2", "Hello world.")28 f.SetCellValue("Sheet2", "B2", 100)
AddAnchorableStructType
Using AI Code Generation
1import (2func main() {3 f := excelize.NewFile()4 index := f.NewSheet("Sheet2")5 f.SetCellValue("Sheet2", "A2", "Hello world.")6 f.SetCellValue("Sheet2", "B2", 100)7 f.SetActiveSheet(index)8 err := f.SaveAs("Book1.xlsx")9 if err != nil {10 fmt.Println(err)11 }12}13testing.tRunner.func1(0xc0000b0c00)14panic(0x4e8f80, 0x6b4c50)15github.com/360EntSecGroup-Skylar/excelize.(*File).AddAnchorableStructType(0x0, 0x4f8f6a, 0x6, 0x4f8f6a, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, ...)16main.main()17Click to share on Telegram (Opens in new window)
AddAnchorableStructType
Using AI Code Generation
1import (2func main() {3 core.QCoreApplication_SetAttribute(core.Qt__AA_EnableHighDpiScaling, true)4 widgets.NewQApplication(len(os.Args), os.Args)5 quickcontrols2.QQuickStyle_SetStyle("Material")6 quickcontrols2.QQuickStyle_SetFallbackStyle("Default")7 engine := qml.NewQQmlApplicationEngine(nil)8 view := quick.NewQQuickView(nil)9 widget := widgets.NewQWidget(nil, 0)10 widget.SetMinimumSize2(800, 600)11 widget.SetWindowTitle("Quick Controls 2 Widget Example")12 quickWidget := quickcontrols2.NewQQuickWidget(nil)13 quickWidget.SetResizeMode(quickcontrols2.QQuickWidget__SizeRootObjectToView)14 quickWidget.SetMinimumSize2(800, 600)15 quickWidget2 := quickcontrols2.NewQQuickWidget(nil)16 quickWidget2.SetResizeMode(quickcontrols2.QQuickWidget__SizeRootObjectToView)17 quickWidget2.SetMinimumSize2(800, 600)18 quickWidget3 := quickcontrols2.NewQQuickWidget(nil)19 quickWidget3.SetResizeMode(quickcontrols2.QQuickWidget__SizeRootObjectToView)20 quickWidget3.SetMinimumSize2(800, 600)21 quickWidget4 := quickcontrols2.NewQQuickWidget(nil)22 quickWidget4.SetResizeMode(quickcontrols2.QQuickWidget__SizeRootObjectToView)23 quickWidget4.SetMinimumSize2(800, 600)24 quickWidget5 := quickcontrols2.NewQQuickWidget(nil)25 quickWidget5.SetResizeMode(quickcontrols2.QQuickWidget__SizeRootObjectToView)26 quickWidget5.SetMinimumSize2(800, 600
AddAnchorableStructType
Using AI Code Generation
1import (2func main() {3 xlFile, err := xlsx.OpenFile("Sample.xlsx")4 if err != nil {5 fmt.Println(err)6 }7 anchor.AddAnchorableStructType("Test", "Test", "Test", "Test")8 err = xlFile.Save("Sample.xlsx")9 if err != nil {10 fmt.Println(err)11 }12}13import (14func main() {15 xlFile, err := xlsx.OpenFile("Sample.xlsx")16 if err != nil {17 fmt.Println(err)18 }19 anchor.AddAnchorableStructType("Test", "Test", "Test", "Test")20 err = xlFile.Save("Sample.xlsx")21 if err != nil {22 fmt.Println(err)23 }24}
AddAnchorableStructType
Using AI Code Generation
1import (2func main() {3 f := excelize.NewFile()4 index := f.NewSheet("Sheet2")5 f.SetCellValue("Sheet2", "A2", "Hello world.")6 f.SetActiveSheet(index)7 err := f.SaveAs("Book1.xlsx")8 if err != nil {9 fmt.Println(err)10 }11}12import (13func main() {14 f := excelize.NewFile()15 index := f.NewSheet("Sheet2")16 f.SetCellValue("Sheet2", "A2", "Hello world.")17 f.SetActiveSheet(index)18 err := f.SaveAs("Book1.xlsx")19 if err != nil {20 fmt.Println(err)21 }22}
AddAnchorableStructType
Using AI Code Generation
1import (2func main() {3 anchors := anchors.New()4 anchors.AddAnchorableStructType("myStruct", new(MyStruct))5 myStruct := MyStruct{ID: 1, Name: "MyStruct"}6 anchor := anchors.CreateAnchor(myStruct)7 fmt.Println(anchor)8}9import (10func main() {11 anchors := anchors.New()12 anchors.AddAnchorableStructType("myStruct", new(MyStruct))13 myStruct := MyStruct{ID: 1, Name: "MyStruct"}14 anchor := anchors.CreateAnchor(myStruct)15 fmt.Println(anchor)16}17import (18func main() {19 anchors := anchors.New()20 anchors.AddAnchorableStructType("myStruct", new(MyStruct))21 myStruct := MyStruct{ID: 1, Name: "MyStruct"}22 anchor := anchors.CreateAnchor(myStruct)23 fmt.Println(anchor)24}25import (26func main() {27 anchors := anchors.New()28 anchors.AddAnchorableStructType("myStruct", new(My
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