How to use Record method of visited Package

Best Go-testdeep code snippet using visited.Record

main.go

Source:main.go Github

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1package main2import (3 "container/heap"4 "encoding/csv"5 "fmt"6 "io"7 "log"8 "math"9 "os"10 "strconv"11 "strings"12 "time"13)14type Edge struct {15 in int16 out int17 weight float6418}19type Node struct {20 edges []*Edge21 value NodeValue22}23func (n *Node) addEdge(from_idx int, to_idx int, weight float64) {24 n.edges = append(n.edges, &Edge{from_idx, to_idx, weight})25}26type NodeValue struct {27 x float6428 y float6429}30type Graph struct {31 nodes []*Node32}33func (g *Graph) addNode(node *Node) int {34 g.nodes = append(g.nodes, node)35 return len(g.nodes) - 136}37func (g *Graph) addEdgeBidirectional(from_idx int, to_idx int, weight float64) {38 g.addEdge(from_idx, to_idx, weight)39 g.addEdge(to_idx, from_idx, weight)40}41func (g *Graph) addEdge(from_idx int, to_idx int, weight float64) {42 node := g.nodes[from_idx]43 node.addEdge(from_idx, to_idx, weight)44}45func (g *Graph) print() {46 fmt.Println("Nodes: ", len(g.nodes))47 for i, n := range g.nodes {48 fmt.Println(i, ": ", n.value)49 for _, e := range n.edges {50 fmt.Println(e.in, " -> ", e.out, " ", e.weight)51 }52 }53}54func euclidean(a NodeValue, b NodeValue) float64 {55 return math.Sqrt(math.Pow(a.x-b.x, 2) + math.Pow(a.y-b.y, 2))56}57type AStarPQElement struct {58 curr_index int59 prev_index int60 cost_to_come float6461 cost_to_go float6462 Index int63}64type AStarVisitedElement struct {65 prev_idx int66 cost_to_come float6467}68type AStarResult struct {69 path []int70 path_len float6471 visited_count int72}73type PriorityQueue []*AStarPQElement74func (pq PriorityQueue) Len() int { return len(pq) }75func (pq PriorityQueue) Less(i, j int) bool {76 return pq[i].cost_to_come+pq[i].cost_to_go < pq[j].cost_to_come+pq[j].cost_to_go77}78func (pq *PriorityQueue) Pop() interface{} {79 old := *pq80 n := len(old)81 item := old[n-1]82 item.Index = -183 *pq = old[0 : n-1]84 return item85}86func (pq *PriorityQueue) Push(x interface{}) {87 n := len(*pq)88 item := x.(*AStarPQElement)89 item.Index = n90 *pq = append(*pq, item)91}92func (pq PriorityQueue) Swap(i, j int) {93 pq[i], pq[j] = pq[j], pq[i]94 pq[i].Index = i95 pq[j].Index = j96}97func reverse(a []int) []int {98 for i, j := 0, len(a)-1; i < j; i, j = i+1, j-1 {99 a[i], a[j] = a[j], a[i]100 }101 return a102}103func (g *Graph) extractAStarSolution(start_idx int, goal_idx int, visited map[int]AStarVisitedElement, num_visited int) AStarResult {104 path := []int{goal_idx}105 prev, _ := visited[goal_idx]106 pathlen := prev.cost_to_come107 // this is poorly written lol108 for prev.prev_idx != start_idx {109 curr := prev110 path = append(path, curr.prev_idx)111 prev, _ = visited[curr.prev_idx]112 }113 path = append(path, start_idx)114 return AStarResult{reverse(path), pathlen, num_visited}115}116func (g *Graph) AStarSearch(start_idx int, goal_idx int, h func(NodeValue, NodeValue) float64) AStarResult {117 start := g.nodes[start_idx].value118 goal := g.nodes[goal_idx].value119 // Create priority queue120 pq := PriorityQueue{}121 heap.Init(&pq)122 // Create visited map123 visited := make(map[int]AStarVisitedElement)124 numVisited := 0125 heap.Push(&pq, &AStarPQElement{start_idx, -1, 0.0, h(start, goal), 0})126 for pq.Len() > 0 {127 best := heap.Pop(&pq).(*AStarPQElement)128 numVisited++129 seen, found := visited[best.curr_index]130 better := false131 if found && best.cost_to_come < seen.cost_to_come {132 better = true133 }134 if !found || better {135 visited[best.curr_index] = AStarVisitedElement{best.prev_index, best.cost_to_come}136 if best.curr_index == goal_idx {137 break138 }139 parent := g.nodes[best.curr_index]140 for _, edge := range parent.edges {141 childCostToCome := best.cost_to_come + edge.weight142 child, childFound := visited[edge.out]143 childBetter := false144 if childFound && childCostToCome < child.cost_to_come {145 childBetter = true146 }147 if !childFound || childBetter {148 heap.Push(&pq, &AStarPQElement{edge.out, best.curr_index, childCostToCome, h(g.nodes[edge.out].value, goal), 0})149 }150 }151 }152 }153 return g.extractAStarSolution(start_idx, goal_idx, visited, numVisited)154}155func main() {156 g := Graph{}157 node_file, err := os.Open("./data/cal.cnode")158 if err != nil {159 log.Fatalln("Couldn't open the node file", err)160 }161 r := csv.NewReader(node_file)162 for {163 // seems like a bad pattern164 record, err := r.Read()165 if err == io.EOF {166 break167 }168 if err != nil {169 log.Fatal(err)170 }171 // also seems bad lol172 record = strings.Split(record[0], " ")173 long, _ := strconv.ParseFloat(record[1], 64)174 lat, _ := strconv.ParseFloat(record[2], 64)175 g.addNode(&Node{[]*Edge{}, NodeValue{lat, long}})176 }177 edge_file, err := os.Open("./data/cal.cedge")178 if err != nil {179 log.Fatalln("Couldn't open the edge file", err)180 }181 r = csv.NewReader(edge_file)182 for {183 // seems like a bad pattern184 record, err := r.Read()185 if err == io.EOF {186 break187 }188 if err != nil {189 log.Fatal(err)190 }191 // also seems bad lol192 record = strings.Split(record[0], " ")193 idx_one, _ := strconv.ParseInt(record[1], 10, 32)194 idx_two, _ := strconv.ParseInt(record[2], 10, 32)195 weight, _ := strconv.ParseFloat(record[3], 64)196 g.addEdgeBidirectional(int(idx_one), int(idx_two), weight)197 }198 start := time.Now()199 res := g.AStarSearch(7261, 20286, euclidean)200 fmt.Println("Finished search in : ", time.Now().Sub(start))201 fmt.Println("Nodes visited: ", res.visited_count)202 fmt.Println("Path len: ", res.path_len)203 fmt.Println("Path: ", res.path)204}...

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shortener.go

Source:shortener.go Github

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...10 "go.mongodb.org/mongo-driver/mongo"11)12type IShortener interface {13 Create(url string) (*string, error)14 ResolveUrl(id string) (*models.UrlRecord, error)15 DeleteUrl(id string) (*int64, error)16 AccessCount(id string) (*models.Analytics, error)17}18type shortener struct {19 db IDbOperations20}21func newShortener(db IDbOperations) IShortener {22 return &shortener{23 db: db,24 }25}26func generateId(val string) []byte {27 sha := sha1.New()28 sha.Write([]byte(val))29 return sha.Sum(nil)30}31func isExpired(currentTime uint64, lastVisited uint64) bool {32 secondsInYear := 3153600033 return (currentTime-lastVisited >= uint64(secondsInYear))34}35func sortUintSliceDesc(visited []uint64) {36 sort.Slice(visited, func(i, j int) bool {37 return visited[i] > visited[j]38 })39}40func (shortener *shortener) Create(url string) (*string, error) {41 // check if already exists42 id := generateId(url)43 result, err := shortener.db.FindOneById(id)44 if result != nil {45 return nil, errors.New("Records already exists")46 }47 if err != nil && err != mongo.ErrNoDocuments {48 return nil, err49 }50 currentTime := uint64(time.Now().Unix())51 // insert new record52 document := &models.UrlRecord{Id: id, IdString: hex.EncodeToString(id), FullUrl: url, Visited: []uint64{}, CreatedAt: currentTime, LastVisited: currentTime}53 _, insertionErr := shortener.db.InsertOne(document)54 if insertionErr != nil {55 return nil, insertionErr56 }57 return &document.IdString, nil58}59func (shortener *shortener) ResolveUrl(id string) (*models.UrlRecord, error) {60 byteId, err := hex.DecodeString(id)61 if err != nil {62 return nil, err63 }64 record, err := shortener.db.FindOneById(byteId)65 if err != nil {66 return nil, err67 }68 visited := uint64(time.Now().Unix())69 if isExpired(visited, record.LastVisited) {70 return nil, errors.New("Expired Url")71 }72 update := bson.D{73 {74 "$push", bson.D{75 {"visited", visited},76 },77 },78 {79 "$set", bson.D{80 {"lastVisited", visited},81 },82 },83 }84 updatedCount, updatedErr := shortener.db.UpdatedOneById(byteId, update)85 if updatedErr != nil {86 return nil, updatedErr87 }88 if *updatedCount > 0 {89 record.Visited = nil90 return record, nil91 }92 return nil, errors.New("Record Not Found")93}94func (shortener *shortener) DeleteUrl(id string) (*int64, error) {95 byteId, err := hex.DecodeString(id)96 if err != nil {97 return nil, err98 }99 return shortener.db.DeleteOneById(byteId)100}101func (shortener *shortener) AccessCount(id string) (*models.Analytics, error) {102 byteId, err := hex.DecodeString(id)103 if err != nil {104 return nil, err105 }106 record, err := shortener.db.FindOneById(byteId)...

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visited_test.go

Source:visited_test.go Github

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...13func TestVisited(t *testing.T) {14 t.Run("not a pointer", func(t *testing.T) {15 v := visited.NewVisited()16 a, b := 1, 217 test.IsFalse(t, v.Record(reflect.ValueOf(a), reflect.ValueOf(b)))18 test.IsFalse(t, v.Record(reflect.ValueOf(a), reflect.ValueOf(b)))19 })20 t.Run("map", func(t *testing.T) {21 v := visited.NewVisited()22 a, b := map[string]bool{}, map[string]bool{}23 f := func(m map[string]bool) reflect.Value {24 return reflect.ValueOf(m)25 }26 test.IsFalse(t, v.Record(f(a), f(b)))27 test.IsTrue(t, v.Record(f(a), f(b)))28 test.IsTrue(t, v.Record(f(b), f(a)))29 // nil maps are not recorded30 b = nil31 test.IsFalse(t, v.Record(f(a), f(b)))32 test.IsFalse(t, v.Record(f(a), f(b)))33 test.IsFalse(t, v.Record(f(b), f(a)))34 test.IsFalse(t, v.Record(f(b), f(a)))35 })36 t.Run("pointer", func(t *testing.T) {37 v := visited.NewVisited()38 type S struct {39 p *S40 ok bool41 }42 a, b := &S{}, &S{}43 a.p = &S{ok: true}44 b.p = &S{ok: false}45 f := func(m *S) reflect.Value {46 return reflect.ValueOf(m)47 }48 test.IsFalse(t, v.Record(f(a), f(b)))49 test.IsTrue(t, v.Record(f(a), f(b)))50 test.IsTrue(t, v.Record(f(b), f(a)))51 test.IsFalse(t, v.Record(f(a.p), f(b.p)))52 test.IsTrue(t, v.Record(f(a.p), f(b.p)))53 test.IsTrue(t, v.Record(f(b.p), f(a.p)))54 // nil pointers are not recorded55 b = nil56 test.IsFalse(t, v.Record(f(a), f(b)))57 test.IsFalse(t, v.Record(f(a), f(b)))58 test.IsFalse(t, v.Record(f(b), f(a)))59 test.IsFalse(t, v.Record(f(b), f(a)))60 })61 // Visited.Record() needs its slice or interface param be62 // addressable, that's why we use a struct pointer below63 t.Run("slice", func(t *testing.T) {64 v := visited.NewVisited()65 type vSlice struct{ s []string }66 a, b := &vSlice{s: []string{}}, &vSlice{[]string{}}67 f := func(vm *vSlice) reflect.Value {68 return reflect.ValueOf(vm).Elem().Field(0)69 }70 test.IsFalse(t, v.Record(f(a), f(b)))71 test.IsTrue(t, v.Record(f(a), f(b)))72 test.IsTrue(t, v.Record(f(b), f(a)))73 // nil slices are not recorded74 b = &vSlice{}75 test.IsFalse(t, v.Record(f(a), f(b)))76 test.IsFalse(t, v.Record(f(a), f(b)))77 test.IsFalse(t, v.Record(f(b), f(a)))78 test.IsFalse(t, v.Record(f(b), f(a)))79 })80 t.Run("interface", func(t *testing.T) {81 v := visited.NewVisited()82 type vIf struct{ i any }83 a, b := &vIf{i: 42}, &vIf{i: 24}84 f := func(vm *vIf) reflect.Value {85 return reflect.ValueOf(vm).Elem().Field(0)86 }87 test.IsFalse(t, v.Record(f(a), f(b)))88 test.IsTrue(t, v.Record(f(a), f(b)))89 test.IsTrue(t, v.Record(f(b), f(a)))90 // nil interfaces are not recorded91 b = &vIf{}92 test.IsFalse(t, v.Record(f(a), f(b)))93 test.IsFalse(t, v.Record(f(a), f(b)))94 test.IsFalse(t, v.Record(f(b), f(a)))95 test.IsFalse(t, v.Record(f(b), f(a)))96 })97}...

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Record

Using AI Code Generation

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1import (2type visited struct {3}4func (v *visited) Record(i int) {5 v.visited = append(v.visited, i)6}7func (v *visited) Print() {8 fmt.Println(v.visited)9}10func main() {11 v := &visited{}12 v.Record(1)13 v.Record(2)14 v.Record(3)15 v.Print()16}

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Record

Using AI Code Generation

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1import (2type Visited struct {3}4func (v *Visited) Record() {5 fmt.Fprint(v, "Recorded")6}7func main() {8 v := &Visited{os.Stdout}9 v.Record()10}

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Record

Using AI Code Generation

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1import (2type Visitor interface {3 Visit(Visitable)4}5type Visitable interface {6 Accept(Visitor)7}8type Visited struct {9}10func (v *Visited) Accept(visitor Visitor) {11 visitor.Visit(v)12}13type VisitorImpl struct {14}15func (v *VisitorImpl) Visit(visitable Visitable) {16 visited := visitable.(*Visited)17 fmt.Printf("Visited: %s\n", visited.Record)18}19func main() {20 visited := &Visited{"Hello World"}21 visitor := &VisitorImpl{}22 visited.Accept(visitor)23}

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Record

Using AI Code Generation

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1import (2func main() {3 vis := visited.NewVisited()4 vis.Record("www.google.com")5 fmt.Println(vis)6}

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Record

Using AI Code Generation

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1import (2type visited struct {3}4func (v *visited) Record(path string) {5}6func (v *visited) Print() {7 fmt.Println("Path Visited: " + v.path)8}9func (v *visited) Path() string {10}11func (v *visited) Reset() {12}13func PathVisited(v *visited, path string) {14 v.Record(path)15}16func main() {17 v := &visited{}18 PathVisited(v, "/home/user1/go/src")19 v.Print()20 fmt.Println("Path: " + v.Path())21 v.Reset()22 v.Print()23 fmt.Println("Path: " + v.Path())24}

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Record

Using AI Code Generation

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1import (2func main() {3 fmt.Println("Hello from 2.go")4 v.Record("karthik")5 v.Record("sankar")6 v.Record("vaidya")7 v.Add()8 v.Print()

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