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How to use copyWithHooks method of td Package

Best Go-testdeep code snippet using td.copyWithHooks

t_struct.go

Source:t_struct.go

...342			return &new343		}344	}345	// Enable UseEqual only for types types346	t = t.copyWithHooks()347	err := t.Config.hooks.AddUseEqual(types)348	if err != nil {349		t.Helper()350		t.Fatal(color.Bad("UseEqual " + err.Error()))351	}352	return t353}354// BeLax allows to compare different but convertible types. If set to355// false, got and expected types must be the same. If set to true and356// expected type is convertible to got one, expected is first357// converted to go type before its comparison. See [CmpLax] or358// [T.CmpLax] and [Lax] operator to set this flag without providing a359// specific configuration.360//361// It returns a new instance of [*T] so does not alter the original t.362//363// Note that t.BeLax() acts as t.BeLax(true).364func (t *T) BeLax(enable ...bool) *T {365	new := *t366	new.Config.BeLax = len(enable) == 0 || enable[0]367	return &new368}369// IgnoreUnexported tells go-testdeep to ignore unexported fields of370// structs whose type is one of types.371//372// It always returns a new instance of [*T] so does not alter the original t.373//374//	t = t.IgnoreUnexported(MyStruct1{}, MyStruct2{})375//376// types items can also be [reflect.Type] items. In this case, the377// target type is the one reflected by the [reflect.Type].378//379//	t = t.IgnoreUnexported(reflect.TypeOf(MyStruct1{}))380//381// As a special case, calling t.IgnoreUnexported() or382// t.IgnoreUnexported(true) returns an instance ignoring unexported383// fields globally, for all struct types. t.IgnoreUnexported(false)384// returns an instance not ignoring unexported fields anymore, except385// for types already recorded using a previous IgnoreUnexported call.386func (t *T) IgnoreUnexported(types ...any) *T {387	// special case: IgnoreUnexported()388	if len(types) == 0 {389		new := *t390		new.Config.IgnoreUnexported = true391		return &new392	}393	// special cases: IgnoreUnexported(true) or IgnoreUnexported(false)394	if len(types) == 1 {395		if ignore, ok := types[0].(bool); ok {396			new := *t397			new.Config.IgnoreUnexported = ignore398			return &new399		}400	}401	// Enable IgnoreUnexported only for types types402	t = t.copyWithHooks()403	err := t.Config.hooks.AddIgnoreUnexported(types)404	if err != nil {405		t.Helper()406		t.Fatal(color.Bad("IgnoreUnexported " + err.Error()))407	}408	return t409}410// Cmp is mostly a shortcut for:411//412//	Cmp(t.TB, got, expected, args...)413//414// with the exception that t.Config is used to configure the test415// [ContextConfig].416//...

t_hooks.go

Source:t_hooks.go

...76// See also [T.WithSmuggleHooks].77//78// [UseEqual]: https://pkg.go.dev/github.com/maxatome/go-testdeep/td#ContextConfig.UseEqual79func (t *T) WithCmpHooks(fns ...any) *T {80	t = t.copyWithHooks()81	err := t.Config.hooks.AddCmpHooks(fns)82	if err != nil {83		t.Helper()84		t.Fatal(color.Bad("WithCmpHooks " + err.Error()))85	}86	return t87}88// WithSmuggleHooks returns a new [*T] instance with new Smuggle hooks89// recorded using functions passed in fns.90//91// Each function in fns has to be a function with the following92// possible signatures:93//94//	func (got A) B95//	func (got A) (B, error)96//97// A cannot be an interface. This restriction can be removed in the98// future, if really needed.99//100// B cannot be an interface. If you have a use case, we can talk about it.101//102// This function is called as soon as possible each time the type A is103// encountered for got.104//105// The B value returned replaces the got value for subsequent tests.106// Smuggle hooks are NOT run again for this returned value to avoid107// easy infinite loop recursion.108//109// When it returns non-nil error (meaning something wrong happened110// during the conversion of A to B), it raises a global error and its111// content is used to tell the reason of the failure.112//113// Smuggle hooks are run just before Cmp hooks.114//115//	func TestSmuggleHook(tt *testing.T) {116//	  t := td.NewT(tt)117//118//	  // Each encountered int is changed to a bool119//	  t = t.WithSmuggleHooks(func (got int) bool {120//	    return got != 0121//	  })122//	  t.Cmp(map[string]int{"ok": 1, "no": 0},123//	    map[string]bool{"ok", true, "no", false}) // succeeds124//125//	  // Each encountered string is converted to int126//	  t = t.WithSmuggleHooks(strconv.Atoi)127//	  t.Cmp("123", 123) // succeeds128//129//	  // Several hooks can be declared at once130//	  t = t.WithSmuggleHooks(131//	    func (got int) bool { return got != 0 },132//	    strconv.Atoi,133//	  )134//	}135//136// There is no way to add or remove hooks of an existing [*T]137// instance, only create a new [*T] instance with this method or138// [T.WithCmpHooks] to add some.139//140// WithSmuggleHooks calls t.Fatal if an item of fns is not a141// function or if its signature does not match the expected ones.142//143// See also [T.WithCmpHooks].144func (t *T) WithSmuggleHooks(fns ...any) *T {145	t = t.copyWithHooks()146	err := t.Config.hooks.AddSmuggleHooks(fns)147	if err != nil {148		t.Helper()149		t.Fatal(color.Bad("WithSmuggleHooks " + err.Error()))150	}151	return t152}153func (t *T) copyWithHooks() *T {154	nt := NewT(t)155	nt.Config.hooks = t.Config.hooks.Copy()156	return nt157}

copyWithHooks

Using AI Code Generation

1import (2func main() {3	client := telegram.NewClient(4		telegram.Config{5			APIID:   os.Getenv("TD_API_ID"),6			APIHash: os.Getenv("TD_API_HASH"),7			Logger:  log.New(os.Stdout, "", log.LstdFlags),8		},9	ctx := client.Context()10	authState, err := client.AuthState(ctx)11	if err != nil {12		panic(err)13	}14	if authState.GetAuthorizationStateEnum() != tg.AuthorizationStateReadyType {15		updates, err := client.Updates(ctx)16		if err != nil {17			panic(err)18		}19		for update := range updates {20			switch update := update.(type) {21				if update.AuthorizationState.GetAuthorizationStateEnum() == tg.AuthorizationStateReadyType {22				}23			}24		}25	}26	q := query.NewGetChats(&tg.ChatListMain{}, 0, 0, 100)27	chats, err := client.SendAndCatch(ctx, q)28	if err != nil {29		panic(err)30	}31	fmt.Println(chats)32	updates, err := client.Updates(ctx)33	if err != nil {34		panic(err)35	}36	for update := range updates {37		switch update := update.(type) {38			fmt.Println(update.Message)39		}40	}41}42import (

copyWithHooks

Using AI Code Generation

1import (2type td struct {3}4func (t td) copyWithHooks() *td {5	return &td{name: t.name}6}7func main() {8	t := td{name: "test"}9	fmt.Println(reflect.TypeOf(t))10	fmt.Println(reflect.TypeOf(t.copyWithHooks()))11}12import (13type td struct {14}15func (t *td) copyWithHooks() *td {16	return &td{name: t.name}17}18func main() {19	t := td{name: "test"}20	fmt.Println(reflect.TypeOf(t))21	fmt.Println(reflect.TypeOf(t.copyWithHooks()))22}

copyWithHooks

Using AI Code Generation

1func main() {2    td := NewTD()3    td.SetData(1)4    td.SetData(2)5    td.SetData(3)6    td.SetData(4)7    td.SetData(5)8    td.SetData(6)9    td.SetData(7)10    td.SetData(8)11    td.SetData(9)12    td.SetData(10)13    td.SetData(11)14    td.SetData(12)15    td.SetData(13)16    td.SetData(14)17    td.SetData(15)18    td.SetData(16)19    td.SetData(17)20    td.SetData(18)21    td.SetData(19)22    td.SetData(20)23    fmt.Println(td.GetData())24}25func TestCopyWithHooks(t *testing.T) {26    td := NewTD()27    td.SetData(1)28    td.SetData(2)29    td.SetData(3)30    td.SetData(4)31    td.SetData(5)32    td.SetData(6)33    td.SetData(7)34    td.SetData(8)35    td.SetData(9)36    td.SetData(10)37    td.SetData(11)38    td.SetData(12)39    td.SetData(13)40    td.SetData(14)41    td.SetData(15)42    td.SetData(16)43    td.SetData(17)44    td.SetData(18)45    td.SetData(19)46    td.SetData(20)47    td.SetData(21)48    td.SetData(22)49    td.SetData(23)50    td.SetData(24)51    td.SetData(25)52    td.SetData(26)53    td.SetData(27)54    td.SetData(28)55    td.SetData(29)56    td.SetData(30)57    td.SetData(31)58    td.SetData(32)59    td.SetData(33)60    td.SetData(34)61    td.SetData(35)62    td.SetData(36)63    td.SetData(37)64    td.SetData(38)65    td.SetData(39)66    td.SetData(40)67    td.SetData(41)68    td.SetData(42)69    td.SetData(43)

copyWithHooks

Using AI Code Generation

1import (2func main() {3	td := new(TD)4	td.setTD(3, 4, 5)5	fmt.Println("td = ", td)6	td2 := td.copyWithHooks()7	fmt.Println("td2 = ", td2)8}9td =  &{3 4 5}10td2 =  &{3 4 5}11import (12func main() {13	td := new(TD)14	td.setTD(3, 4, 5)15	fmt.Println("td = ", td)16	td2 := td.copyWithHooks()17	fmt.Println("td2 = ", td2)18	td.setTD(10, 20, 30)19	fmt.Println("td = ", td)20	fmt.Println("td2 = ", td2)21}22td =  &{3 4 5}23td2 =  &{3 4 5}24td =  &{10 20 30}25td2 =  &{3 4 5}26import (27func main() {28	td := new(TD)29	td.setTD(3, 4, 5)30	fmt.Println("td = ", td)31	td2 := td.copyWithHooks()32	fmt.Println("td2 = ", td2)33	td.setTD(

copyWithHooks

Using AI Code Generation

1import (2type td struct {3}4func (t *td) copyWithHooks() interface{} {5	newVal := reflect.New(reflect.TypeOf(t).Elem())6	oldVal := reflect.ValueOf(t).Elem()7	newVal.Elem().Set(oldVal)8	for i := 0; i < newVal.NumMethod(); i++ {9		method := newVal.Type().Method(i)10		if strings.HasPrefix(method.Name, "hook") {11			newVal.MethodByName(method.Name).Call([]reflect.Value{})12		}13	}14	return newVal.Interface()15}16func (t *td) hook1() {17	fmt.Println("hook1 called")18}19func (t *td) hook2() {20	fmt.Println("hook2 called")21}22func main() {23	t := &td{Name: "test"}24	t2 := t.copyWithHooks().(*td)25	fmt.Println(t2.Name)26}

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