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example_test.go
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/
example_test.go
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package conversion
import (
"fmt"
"reflect"
"github.com/wernerstrydom/conversion/types"
)
func ExampleMapper_Map() {
source := "123"
var destination int
cfg := NewConfiguration()
mapper := cfg.BuildMapper()
err := mapper.Map(source, &destination)
if err != nil {
fmt.Println(err)
}
fmt.Println(destination)
// Output:
// 123
}
func ExampleMapper_Map_pointerToValue() {
value := "123"
source := &value
var destination int
cfg := NewConfiguration()
mapper := cfg.BuildMapper()
err := mapper.Map(source, &destination)
if err != nil {
fmt.Println(err)
}
fmt.Println(destination)
// Output:
// 123
}
func ExampleMapper_Map_valueToPointer() {
source := "123"
var destination *int
cfg := NewConfiguration()
mapper := cfg.BuildMapper()
err := mapper.Map(source, &destination)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(*destination)
// Output:
// 123
}
func ExampleMapper_Map_pointerToPointer() {
value := "123"
source := &value
var destination *int
cfg := NewConfiguration()
mapper := cfg.BuildMapper()
err := mapper.Map(source, &destination)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(*destination)
// Output:
// 123
}
func ExampleMapper_MapTo_stringToInt() {
source := "123"
cfg := NewConfiguration()
mapper := cfg.BuildMapper()
destination, err := mapper.MapTo(source, reflect.TypeOf(0))
if err != nil {
fmt.Println(err)
}
fmt.Println(destination.(int))
// Output:
// 123
}
func ExampleMapper_MapTo_parseError() {
source := "123.45"
cfg := NewConfiguration()
mapper := cfg.BuildMapper()
_, err := mapper.MapTo(source, reflect.TypeOf(0))
if err != nil {
fmt.Println(err)
}
// Output:
// strconv.Atoi: parsing "123.45": invalid syntax
}
func ExampleMapper_MapTo() {
source := true
cfg := NewConfiguration()
mapper := cfg.BuildMapper()
destination, err := mapper.MapTo(source, types.Int)
if err != nil {
fmt.Println(err)
}
// cast destination to int
fmt.Println(destination.(int))
// Output:
// 1
}