copier/copier_map_test.go

package copier

import (
	"encoding/json"
	"fmt"
	"testing"
	"time"
)

func TestCopyMap(t *testing.T) {
	src := map[string]any{
		"name":       "Alice",
		"age":        25,
		"height":     165.5,
		"is_student": true,
		"birthday":   "1998-05-15T06:00:00Z",
		"tags":       []any{"developer", "golang", "backend"},
		"scores":     []any{95, 88, 92},
		"address": map[string]any{
			"street":  "123 Main St",
			"city":    "Beijing",
			"country": "China",
		},
		"metadata": map[string]any{
			"department": "Engineering",
			"level":      3,
			"projects":   []any{"projectA", "projectB"},
		},
		"ptr_field": "pointer value",
	}

	dst := map[string]any{}

	if err := Copy(&dst, src); err != nil {
		t.Fatal(err)
	}
}

func TestMapAnyCopy(t *testing.T) {
	src := map[string]any{
		"department": "Engineering",
		"level":      3,
	}

	dst := map[string]any{}
	if err := Copy(&dst, src); err != nil {
		t.Fatal(err)
	}

	fmt.Println(src, dst)
}

func TestIntMapCopy(t *testing.T) {
	src := map[int]string{
		1: "department",
		3: "level",
	}

	dst := map[int]any{}
	if err := Copy(&dst, src); err != nil {
		t.Fatal(err)
	}

	fmt.Println(src, dst)
}

func TestDiffStructMapCopy(t *testing.T) {
	type person struct {
		Name string
		Age  int
	}

	type user struct {
		Name string
		Age  int
	}

	src := map[string]*person{
		"John": {
			Name: "John",
			Age:  30,
		},
	}

	dst := map[string]*user{}

	if err := Copy(&dst, src); err != nil {
		t.Fatal(err)
	}
	fmt.Println(src, dst)
}

func TestStructToMapCopy(t *testing.T) {
	type person struct {
		Name    string
		Age     int
		Address *Address
	}

	src := person{
		Name: "John",
		Age:  30,
		Address: &Address{
			City: "Beijing",
		},
	}

	dst := map[string]any{}
	if err := Copy(&dst, src); err != nil {
		t.Fatal(err)
	}
	fmt.Println(src, dst)
}

func TestAnonymousStructToMapCopy(t *testing.T) {
	type Person struct {
		Name string
		Age  int
	}

	type person2 struct {
		*Person
		Address *Address
	}

	// src := person2{
	// 	person: &person{
	// 		Name: "John",
	// 		Age:  30,
	// 	},
	// 	Address: &Address{
	// 		City: "Beijing",
	// 	},
	// }

	// dst := map[string]any{}
	// if err := Copy(&dst, src); err != nil {
	// 	t.Fatal(err)
	// }

	t.Run("test to anonymous struct", func(t *testing.T) {
		src := map[string]any{
			"Name": "John",
			"Age":  30,
			"Address": map[string]any{
				"City": "Beijing",
			},
		}

		dst := person2{}
		if err := Copy(&dst, src); err != nil {
			t.Fatal(err)
		}

		b, _ := json.Marshal(dst)
		t.Log(string(b))
	})

}

func TestMapToStructCopy(t *testing.T) {
	type person struct {
		Name    string
		Age     int
		Address *Address
	}

	src := map[string]any{
		"Name": "John",
		"Age":  30,
		"Address": map[string]any{
			"City": "Beijing",
		},
	}

	dst := person{}
	if err := Copy(&dst, src); err != nil {
		t.Fatal(err)
	}
}

func TestMixMapToStruct(t *testing.T) {
	type Address struct {
		Street  string `json:"street"`
		City    string `json:"city"`
		Country string `json:"country"`
	}

	type Person struct {
		Name      string         `json:"name"`
		Age       int            `json:"age"`
		Height    float64        `json:"height"`
		IsStudent bool           `json:"is_student"`
		Birthday  time.Time      `json:"birthday"`
		Tags      []string       `json:"tags"`
		Scores    []int          `json:"scores"`
		Address   Address        `json:"address"`
		Metadata  map[string]any `json:"metadata"`
		PtrField  *string        `json:"ptr_field"`
	}

	src := map[string]any{
		"name":       "Alice",
		"age":        25,
		"height":     165.5,
		"is_student": true,
		"birthday":   "1998-05-15T06:00:00Z",
		"tags":       []any{"developer", "golang", "backend"},
		"scores":     []any{95, 88, 92},
		"address": map[string]any{
			"street":  "123 Main St",
			"city":    "Beijing",
			"country": "China",
		},
		"metadata": map[string]any{
			"department": "Engineering",
			"level":      3,
			"projects":   []any{"projectA", "projectB"},
		},
		"ptr_field": "pointer value",
	}

	var dst Person
	if err := Copy(&dst, src); err != nil {
		t.Fatal(err)
	}
}

func BenchmarkMapCopy(b *testing.B) {
	type Address struct {
		Street  string `json:"street"`
		City    string `json:"city"`
		Country string `json:"country"`
	}

	type Person struct {
		Name      string         `json:"name"`
		Age       int            `json:"age"`
		Height    float64        `json:"height"`
		IsStudent bool           `json:"is_student"`
		Birthday  time.Time      `json:"birthday"`
		Tags      []string       `json:"tags"`
		Scores    []int          `json:"scores"`
		Address   Address        `json:"address"`
		Metadata  map[string]any `json:"metadata"`
		PtrField  *string        `json:"ptr_field"`
	}

	src := map[string]any{
		"name":       "Alice",
		"age":        25,
		"height":     165.5,
		"is_student": true,
		"birthday":   "1998-05-15T00:00:00Z",
		"tags":       []any{"developer", "golang", "backend"},
		"scores":     []any{95, 88, 92},
		"address": map[string]any{
			"street":  "123 Main St",
			"city":    "Beijing",
			"country": "China",
		},
		"metadata": map[string]any{
			"department": "Engineering",
			"level":      3,
			"projects":   []any{"projectA", "projectB"},
		},
		"ptr_field": "pointer value",
	}

	for b.Loop() {
		var dst Person
		if err := Copy(&dst, src); err != nil {
			b.Fatal(err)
		}
	}

}

func BenchmarkStruct2Map(b *testing.B) {
	var src = Person{
		Name: "John",
		Age:  30,
	}

	for b.Loop() {
		var dst map[string]any
		if err := Copy(&dst, src); err != nil {
			b.Fatal(err)
		}
	}
}