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How to use Len method of tdutil Package

Best Go-testdeep code snippet using tdutil.Len

slice.go

Source:slice.go

...18func (f Slice) isFlat() bool {19	t := reflect.TypeOf(f.Slice).Elem()20	return t != sliceType && t.Kind() != reflect.Interface21}22func subLen(v reflect.Value) int {23	if v.Kind() == reflect.Interface {24		v = v.Elem()25	}26	if s, ok := v.Interface().(Slice); ok {27		return s.len()28	}29	return 130}31func (f Slice) len() int {32	fv := reflect.ValueOf(f.Slice)33	l := 034	if fv.Kind() == reflect.Map {35		if f.isFlat() {36			return fv.Len() * 237		}38		tdutil.MapEach(fv, func(k, v reflect.Value) bool {39			l += 1 + subLen(v)40			return true41		})42		return l43	}44	fvLen := fv.Len()45	if f.isFlat() {46		return fvLen47	}48	for i := 0; i < fvLen; i++ {49		l += subLen(fv.Index(i))50	}51	return l52}53func subAppendValuesTo(sv []reflect.Value, v reflect.Value) []reflect.Value {54	if v.Kind() == reflect.Interface {55		v = v.Elem()56	}57	if s, ok := v.Interface().(Slice); ok {58		return s.appendValuesTo(sv)59	}60	return append(sv, v)61}62func (f Slice) appendValuesTo(sv []reflect.Value) []reflect.Value {63	fv := reflect.ValueOf(f.Slice)64	if fv.Kind() == reflect.Map {65		if f.isFlat() {66			tdutil.MapEach(fv, func(k, v reflect.Value) bool {67				sv = append(sv, k, v)68				return true69			})70			return sv71		}72		tdutil.MapEach(fv, func(k, v reflect.Value) bool {73			sv = append(sv, k)74			sv = subAppendValuesTo(sv, v)75			return true76		})77		return sv78	}79	fvLen := fv.Len()80	if f.isFlat() {81		for i := 0; i < fvLen; i++ {82			sv = append(sv, fv.Index(i))83		}84		return sv85	}86	for i := 0; i < fvLen; i++ {87		sv = subAppendValuesTo(sv, fv.Index(i))88	}89	return sv90}91func subAppendTo(si []any, v reflect.Value) []any {92	if v.Kind() == reflect.Interface {93		v = v.Elem()94	}95	i := v.Interface()96	if s, ok := i.(Slice); ok {97		return s.appendTo(si)98	}99	return append(si, i)100}101func (f Slice) appendTo(si []any) []any {102	fv := reflect.ValueOf(f.Slice)103	if fv.Kind() == reflect.Map {104		if f.isFlat() {105			tdutil.MapEach(fv, func(k, v reflect.Value) bool {106				si = append(si, k.Interface(), v.Interface())107				return true108			})109			return si110		}111		tdutil.MapEach(fv, func(k, v reflect.Value) bool {112			si = append(si, k.Interface())113			si = subAppendTo(si, v)114			return true115		})116		return si117	}118	fvLen := fv.Len()119	if f.isFlat() {120		for i := 0; i < fvLen; i++ {121			si = append(si, fv.Index(i).Interface())122		}123		return si124	}125	for i := 0; i < fvLen; i++ {126		si = subAppendTo(si, fv.Index(i))127	}128	return si129}130// Len returns the number of items contained in items. Nested Slice131// items are counted as if they are flattened. It returns true if at132// least one [Slice] item is found, false otherwise.133func Len(items []any) (int, bool) {134	l := len(items)135	flattened := true136	for _, item := range items {137		if subf, ok := item.(Slice); ok {138			l += subf.len() - 1139			flattened = false140		}141	}142	return l, flattened143}144// Values returns the items values as a slice of145// [reflect.Value]. Nested [Slice] items are flattened.146func Values(items []any) []reflect.Value {147	l, flattened := Len(items)148	if flattened {149		sv := make([]reflect.Value, l)150		for i, item := range items {151			sv[i] = reflect.ValueOf(item)152		}153		return sv154	}155	sv := make([]reflect.Value, 0, l)156	for _, item := range items {157		if f, ok := item.(Slice); ok {158			sv = f.appendValuesTo(sv)159		} else {160			sv = append(sv, reflect.ValueOf(item))161		}162	}163	return sv164}165// Interfaces returns the items values as a slice of166// any. Nested [Slice] items are flattened.167func Interfaces(items ...any) []any {168	l, flattened := Len(items)169	if flattened {170		return items171	}172	si := make([]any, 0, l)173	for _, item := range items {174		if f, ok := item.(Slice); ok {175			si = f.appendTo(si)176		} else {177			si = append(si, item)178		}179	}180	return si181}...

OptimalBST.go

Source:OptimalBST.go

1package main2import (3	"fmt"4	"math"5)6func OptimalBSTCost(keys []int, freq []int) int {7	n := len(freq)8	return optimalBSTCostUtil(freq, 0, n-1)9}10func optimalBSTCostUtil(freq []int, i int, j int) int {11	if i > j {12		return 013	}14	if j == i { // one element in this subarray15		return freq[i]16	}17	minVal := math.MaxInt3218	for r := i; r <= j; r++ {19		minVal = min(minVal,20			optimalBSTCostUtil(freq, i, r-1)+21				optimalBSTCostUtil(freq, r+1, j))22	}23	return minVal + sumAll(freq, i, j)24}25func sumAll(freq []int, i int, j int) int {26	s := 027	for k := i; k <= j; k++ {28		s += freq[k]29	}30	return s31}32func OptimalBSTCostTD(keys []int, freq []int) int {33	n := len(freq)34	cost := make([][]int, n)35	for i := range cost {36		cost[i] = make([]int, n)37		for j := range cost[i] {38			cost[i][j] = math.MaxInt3239		}40	}41	for i := 0; i < n; i++ {42		cost[i][i] = freq[i]43	}44	return optimalBSTCostTDUtil(freq, cost, 0, n-1)45}46func optimalBSTCostTDUtil(freq []int, cost [][]int, i int, j int) int {47	if i > j {48		return 049	}50	if cost[i][j] != math.MaxInt32 {51		return cost[i][j]52	}53	s := sumAll(freq, i, j)54	for r := i; r <= j; r++ {55		cost[i][j] = min(cost[i][j],56			optimalBSTCostTDUtil(freq, cost, i, r-1)+57				optimalBSTCostTDUtil(freq, cost, r+1, j)+s)58	}59	return cost[i][j]60}61func min(a, b int) int {62	if a < b {63		return a64	}65	return b66}67func OptimalBSTCostBU(keys []int, freq []int) int {68	n := len(freq)69	cost := make([][]int, n)70	for i := range cost {71		cost[i] = make([]int, n)72		for j := range cost[i] {73			cost[i][j] = math.MaxInt3274		}75	}76	for i := 0; i < n; i++ {77		cost[i][i] = freq[i]78	}79	sm := 080	// l is length of range.81	for l := 1; l < n; l++ {82		for i, j := 0, l; j < n; i, j = i+1, j+1 {83			sm = sumAll(freq, i, j)84			for r := i; r <= j; r++ {85				first, second := 0, 086				if r-1 >= i {87					first = cost[i][r-1]88				}89				if r+1 <= j {90					second = cost[r+1][j]91				}92				cost[i][j] = min(cost[i][j], sm+first+second)93			}94		}95	}96	return cost[0][n-1]97}98func OptimalBSTCostBU2(keys []int, freq []int) int {99	n := len(freq)100	cost := make([][]int, n)101	for i := range cost {102		cost[i] = make([]int, n)103		for j := range cost[i] {104			cost[i][j] = math.MaxInt32105		}106	}107	sumArr := sumInit(freq, n)108	for i := 0; i < n; i++ {109		cost[i][i] = freq[i]110	}111	sm := 0112	// l is length of range.113	for l := 1; l < n; l++ {114		for i, j := 0, l; j < n; i, j = i+1, j+1 {115			sm = sumRange(sumArr, i, j)116			for r := i; r <= j; r++ {117				first, second := 0, 0118				if r-1 >= i {119					first = cost[i][r-1]120				}121				if r+1 <= j {122					second = cost[r+1][j]123				}124				cost[i][j] = min(cost[i][j], sm+first+second)125			}126		}127	}128	return cost[0][n-1]129}130func sumInit(freq []int, n int) []int {131	sum := make([]int, n)132	sum[0] = freq[0]133	for i := 1; i < n; i++ {134		sum[i] = sum[i-1] + freq[i]135	}136	return sum137}138func sumRange(sum []int, i int, j int) int {139	if i == 0 {140		return sum[j]141	}142	return sum[j] - sum[i-1]143}144func main() {145	keys := []int{9, 15, 25}146	freq := []int{30, 10, 40}147	fmt.Println("OBST cost:", OptimalBSTCost(keys, freq))148	fmt.Println("OBST cost:", OptimalBSTCostTD(keys, freq))149	fmt.Println("OBST cost:", OptimalBSTCostBU(keys, freq))150	fmt.Println("OBST cost:", OptimalBSTCostBU2(keys, freq))151}152/*153OBST cost: 130154OBST cost: 130155OBST cost: 130156OBST cost: 130157*/...

map_test.go

Source:map_test.go

1// Copyright (c) 2018, Maxime SoulÃ©2// All rights reserved.3//4// This source code is licensed under the BSD-style license found in the5// LICENSE file in the root directory of this source tree.6package tdutil_test7import (8	"reflect"9	"sort"10	"testing"11	"github.com/maxatome/go-testdeep/helpers/tdutil"12)13func TestMap(t *testing.T) {14	m := map[string]int{"a": 1, "b": 2, "c": 3}15	t.Run("MapEach", func(t *testing.T) {16		type kv struct {17			key   string18			value int19		}20		var s []kv21		ok := tdutil.MapEach(reflect.ValueOf(m), func(k, v reflect.Value) bool {22			s = append(s, kv{23				key:   k.Interface().(string),24				value: v.Interface().(int),25			})26			return true27		})28		if !ok {29			t.Error("MapEach returned false")30		}31		sort.Slice(s, func(i, j int) bool { return s[i].key < s[j].key })32		if len(s) != 3 ||33			s[0] != (kv{key: "a", value: 1}) ||34			s[1] != (kv{key: "b", value: 2}) ||35			s[2] != (kv{key: "c", value: 3}) {36			t.Errorf("MapEach failed: %v", s)37		}38	})39	t.Run("MapEach short circuit", func(t *testing.T) {40		called := 041		ok := tdutil.MapEach(reflect.ValueOf(m), func(k, v reflect.Value) bool {42			called++43			return false44		})45		if ok {46			t.Error("MapEach returned true")47		}48		if called != 1 {49			t.Errorf("MapEach callback called %d times instead of 1", called)50		}51	})52	t.Run("MapEachValue", func(t *testing.T) {53		var s []int54		ok := tdutil.MapEachValue(reflect.ValueOf(m), func(v reflect.Value) bool {55			s = append(s, v.Interface().(int))56			return true57		})58		if !ok {59			t.Error("MapEachValue returned false")60		}61		sort.Ints(s)62		if len(s) != 3 || s[0] != 1 || s[1] != 2 || s[2] != 3 {63			t.Errorf("MapEachValue failed: %v", s)64		}65	})66	t.Run("MapEachValue short circuit", func(t *testing.T) {67		called := 068		ok := tdutil.MapEachValue(reflect.ValueOf(m), func(v reflect.Value) bool {69			called++70			return false71		})72		if ok {73			t.Error("MapEachValue returned true")74		}75		if called != 1 {76			t.Errorf("MapEachValue callback called %d times instead of 1", called)77		}78	})79	t.Run("MapSortedValues", func(t *testing.T) {80		vs := tdutil.MapSortedValues(reflect.ValueOf(m))81		if len(vs) != 3 ||82			vs[0].Int() != 1 || vs[1].Int() != 2 || vs[2].Int() != 3 {83			t.Errorf("MapSortedValues failed: %v", vs)84		}85		// nil map86		var mn map[string]int87		vs = tdutil.MapSortedKeys(reflect.ValueOf(mn))88		if len(vs) != 0 {89			t.Errorf("MapSortedValues failed: %v", vs)90		}91	})92	t.Run("MapSortedKeys", func(t *testing.T) {93		ks := tdutil.MapSortedKeys(reflect.ValueOf(m))94		if len(ks) != 3 ||95			ks[0].String() != "a" || ks[1].String() != "b" || ks[2].String() != "c" {96			t.Errorf("MapSortedKeys failed: %v", ks)97		}98		// nil map99		var mn map[string]int100		ks = tdutil.MapSortedKeys(reflect.ValueOf(mn))101		if len(ks) != 0 {102			t.Errorf("MapSortedKeys failed: %v", ks)103		}104	})105}...

Len

Using AI Code Generation

1import (2func main() {3	a := []int{1, 2, 3, 4, 5}4	fmt.Println(tdutil.Len(a))5}6import (7func main() {8	a := []int{1, 2, 3, 4, 5}9	fmt.Println(tdutil.Len(a))10}11import (12func main() {13	a := []int{1, 2, 3, 4, 5}14	fmt.Println(tdutil.Len(a))15}16import (17func main() {18	a := []int{1, 2, 3, 4, 5}19	fmt.Println(tdutil.Len(a))20}21import (22func main() {23	a := []int{1, 2, 3, 4, 5}24	fmt.Println(tdutil.Len(a))25}26import (27func main() {28	a := []int{1, 2, 3, 4, 5}29	fmt.Println(tdutil.Len(a))30}31import (32func main() {33	a := []int{1, 2, 3, 4, 5}34	fmt.Println(tdutil.Len(a))35}36import (37func main() {38	a := []int{1, 2, 3, 4, 5}39	fmt.Println(tdutil.Len(a))40}41import (42func main() {

Len

Using AI Code Generation

1import (2func main() {3    fmt.Println(tdutil.Len(a))4}5import (6func main() {7    fmt.Println(tdutil.Len(a))8}9import (10func main() {11    fmt.Println(tdutil.Len(a))12}13import (14func main() {15    fmt.Println(tdutil.Len(a))16}17import (18func main() {19    fmt.Println(tdutil.Len(a))20}21import (22func main() {23    fmt.Println(tdutil.Len(a))24}25import (26func main() {27    fmt.Println(tdutil.Len(a))28}29import (30func main() {31    fmt.Println(tdutil.Len(a))32}33import (34func main() {

Len

Using AI Code Generation

1import (2func main() {3    fmt.Println(tdutil.Len("Hello World"))4}5You can also import the package using the following syntax:6import tdutil "github.com/tdutil"

Len

Using AI Code Generation

1import (2func main() {3    fmt.Println(tdutil.Len("Hello World"))4}5import (6func Len(s string) int {7    return utf8.RuneCountInString(s)8}

Len

Using AI Code Generation

1import (2func main() {3	fmt.Println(tdutil.Len("Go"))4}5func Len(s string) int {6	return len(s)7}8import (9func main() {10	fmt.Println(tdutil.Len("Go"))11}

Len

Using AI Code Generation

1import "fmt"2import "github.com/tdutil"3func main() {4    fmt.Println(tdutil.Len("hello"))5}6>>> import tdutil7>>> tdutil.Len("hello")8import "fmt"9import "github.com/tdutil"10func main() {11    fmt.Println(tdutil.Len("hello"))12}

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