How to use canonStructField method of td Package

Best Go-testdeep code snippet using td.canonStructField

td_struct.go

Source:td_struct.go

...113// see [Struct] & [SStruct] docs for details) and the corresponding114// value the expected field value (which can be a [TestDeep] operator115// as well as a zero value.)116type StructFields map[string]any117// canonStructField canonicalizes name, a key in a StructFields map,118// so it can be compared with other keys during a mergeStructFields().119//   - "name"                 â "name"120//   - ">  name  "            â ">name"121//   - "  22 =~ [A-Z].*At$  " â "22=~[A-Z].*At$"122func canonStructField(name string) string {123	r, _ := utf8.DecodeRuneInString(name)124	if r == utf8.RuneError || unicode.IsLetter(r) {125		return name // shortcut126	}127	// Overwrite a field128	if strings.HasPrefix(name, ">") {129		new := strings.TrimSpace(name[1:])130		if 1+len(new) == len(name) {131			return name // already canonicalized132		}133		return ">" + new134	}135	// Matcher136	if subs := parseMatcher(name); subs != nil {137		if len(subs[0])+len(subs[1])+len(subs[2]) == len(name) {138			return name // already canonicalized139		}140		return subs[0] + subs[1] + subs[2]141	}142	// Will probably raise an error later as it cannot be a field, not143	// an overwritter and not a matcher144	return name145}146// mergeStructFields merges all sfs items into one StructFields and147// returns it.148func mergeStructFields(sfs ...StructFields) StructFields {149	switch len(sfs) {150	case 0:151		return nil152	case 1:153		return sfs[0]154	default:155		// Do a smart merge so ">  pipo" replaces ">pipo  " for example.156		canon2field := map[string]string{}157		ret := make(StructFields, len(sfs[0]))158		for _, sf := range sfs {159			for field, value := range sf {160				canon := canonStructField(field)161				if prevField, ok := canon2field[canon]; ok {162					delete(ret, prevField)163					delete(canon2field, canon)164				} else {165					delete(ret, canon)166				}167				if canon != field {168					canon2field[canon] = field169				}170				ret[field] = value171			}172		}173		return ret174	}...

td_struct_private_test.go

Source:td_struct_private_test.go

...19		{"123=~.*", "123=~.*"},20		{"  123  =~  .*   ", "123=~.*"},21		{"&badField", "&badField"},22	} {23		test.EqualStr(t, canonStructField(tst.got), tst.expected)24	}25}26func TestMergeStructFields(t *testing.T) {27	sfs := mergeStructFields()28	if sfs != nil {29		t.Errorf("not nil")30	}31	x := StructFields{}32	sfs = mergeStructFields(x)33	if reflect.ValueOf(sfs).Pointer() != reflect.ValueOf(x).Pointer() {34		t.Errorf("not x")35	}36	a := StructFields{"pipo": 1}37	b := StructFields{"pipo": 2}...

canonStructField

Using AI Code Generation

1import "fmt"2type td struct {3}4func main() {5    fmt.Println(td{}.canonStructField("A"))6    fmt.Println(td{}.canonStructField("B"))7    fmt.Println(td{}.canonStructField("C"))8}9import "fmt"10type td struct {11}12func main() {13    fmt.Println(td{}.canonStructField("A"))14    fmt.Println(td{}.canonStructField("B"))15    fmt.Println(td{}.canonStructField("C"))16}17import "fmt"18type td struct {19}20func main() {21    fmt.Println(td{}.canonStructField("A"))22    fmt.Println(td{}.canonStructField("B"))23    fmt.Println(td{}.canonStructField("C"))24}25import "fmt"26type td struct {27}28func main() {29    fmt.Println(td{}.canonStructField("A"))30    fmt.Println(td{}.canonStructField("B"))31    fmt.Println(td{}.canonStructField("C"))32}33import "fmt"34type td struct {35}36func main() {37    fmt.Println(td{}.canonStructField("A"))38    fmt.Println(td{}.canonStructField("B"))39    fmt.Println(td{}.canonStructField("C"))40}41import "fmt"42type td struct {43}44func main() {45    fmt.Println(td{}.canonStructField("A"))46    fmt.Println(td{}.canonStructField("B"))47    fmt.Println(td{}.canonStructField("C"))48}49import "fmt"50type td struct {

canonStructField

Using AI Code Generation

1import (2type td struct {3}4func main() {5	t := reflect.TypeOf(td{})6	f, _ := t.FieldByName("FirstName")7	fmt.Println(f.Tag.Get("json"))8	fmt.Println(canonStructField(f))9}10func canonStructField(f reflect.StructField) string {11	tag := f.Tag.Get("json")12	if tag == "" {13	}14}

canonStructField

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, playground")4    fmt.Println(td.canonStructField("abc"))5}6import "fmt"7import "github.com/abc/def"8func main() {9    fmt.Println("Hello, playground")10    fmt.Println(td.canonStructField("abc"))11}12import "fmt"13import "github.com/abc/def"14func main() {15    fmt.Println("Hello, playground")16    fmt.Println(def.td.canonStructField("abc"))17}18import "fmt"19import "github.com/abc/def"20func main() {21    fmt.Println("Hello, playground")22    fmt.Println(def.td.canonStructField("abc"))23    fmt.Println(def.td.canonStructField("abc"))24}25import "fmt"26import "github.com/abc/def"27func main() {28    fmt.Println("Hello, playground")29    fmt.Println(def.td.canonStructField("abc"))30    fmt.Println(def.td.canonStructField("abc"))31    fmt.Println(def.td.canonStructField("abc"))32}33import "fmt"34import "github.com/abc/def"35func main() {36    fmt.Println("Hello, playground")37    fmt.Println(def.td.canonStructField("abc"))38    fmt.Println(def.td.canonStructField("abc"))39    fmt.Println(def.td.canonStructField("abc"))40    fmt.Println(def.td.canonStructField("abc"))41}42import "fmt"43import "github.com/abc/def"44func main() {45    fmt.Println("Hello, playground")46    fmt.Println(def.td.canonStructField("abc"))47    fmt.Println(def.td.canonStructField("abc"))48    fmt.Println(def.td.canonStructField("abc"))

canonStructField

Using AI Code Generation

1import (2type T struct {3}4func main() {5	t := T{1, 2}6	fmt.Println("t = ", t)7	fmt.Println("reflect.TypeOf(t) = ", reflect.TypeOf(t))8	fmt.Println("reflect.TypeOf(t).Field(0) = ", reflect.TypeOf(t).Field(0))9	fmt.Println("reflect.TypeOf(t).Field(0).Name = ", reflect.TypeOf(t).Field(0).Name)10	fmt.Println("reflect.TypeOf(t).Field(0).Type = ", reflect.TypeOf(t).Field(0).Type)11	fmt.Println("reflect.TypeOf(t).Field(0).Tag = ", reflect.TypeOf(t).Field(0).Tag)12	fmt.Println("reflect.TypeOf(t).Field(0).Offset = ", reflect.TypeOf(t).Field(0).Offset)13	fmt.Println("reflect.TypeOf(t).Field(0).Anonymous = ", reflect.TypeOf(t).Field(0).Anonymous)14	fmt.Println("reflect.TypeOf(t).Field(0).PkgPath = ", reflect.TypeOf(t).Field(0).PkgPath)15}16t =  {1 2}17reflect.TypeOf(t) =  main.T18reflect.TypeOf(t).Field(0) =  {A int 0 false }19reflect.TypeOf(t).Field(0).Name =  A20reflect.TypeOf(t).Field(0).Type =  int21reflect.TypeOf(t).Field(0).Tag =  22reflect.TypeOf(t).Field(0).Offset =  023reflect.TypeOf(t).Field(0).Anonymous =  false24reflect.TypeOf(t).Field(0).PkgPath =  25import (26type T struct {27}28func main() {29	t := T{1, 2}30	fmt.Println("t = ", t)31	fmt.Println("reflect.TypeOf(t) = ", reflect.TypeOf(t))32	fmt.Println("reflect.TypeOf(t).Field(0) = ", reflect.TypeOf(t).Field(0))33	fmt.Println("reflect.TypeOf(t).Field(0).Name = ", reflect.TypeOf(t).Field(0).Name)34	fmt.Println("reflect.TypeOf(t).Field(0).Type = ", reflect.TypeOf(t).Field(0).Type)

canonStructField

Using AI Code Generation

1import "fmt"2func main() {3}4import "fmt"5func main() {6}7import "fmt"8func main() {9}10import "fmt"11func main() {12}13import "fmt"14func main() {15}16import "fmt"17func main() {18}19import "fmt"20func main() {21}22import "fmt"

canonStructField

Using AI Code Generation

1import (2type td struct {3}4func main() {5	t.typ = reflect.TypeOf("string")6	t.index = []int{1}7	fmt.Println(t.canonStructField())8}9func (t *td) canonStructField() string {10	if t.anonymous {11	}12	if t.pkgPath != "" {13	}14}15import (16type td struct {17}18func main() {

canonStructField

Using AI Code Generation

1import (2type T struct {3}4func main() {5	t := T{23, "skidoo"}6	s := reflect.ValueOf(&t).Elem()7	typeOfT := s.Type()8	for i := 0; i < s.NumField(); i++ {9		f := s.Field(i)

canonStructField

Using AI Code Generation

1func main() {2    td = NewTypeDetails(reflect.TypeOf(struct {3    }{}))4    sf, err = td.CanonStructField("A")5    if err != nil {6        fmt.Println(err)7    }8    fmt.Println(sf.FieldType)9}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.