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extension_test.go
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extension_test.go
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package openapi3
import (
"encoding/json"
"fmt"
"testing"
"github.com/stretchr/testify/require"
"github.com/getkin/kin-openapi/jsoninfo"
)
func ExampleExtensionProps_DecodeWith() {
loader := NewLoader()
loader.IsExternalRefsAllowed = true
spec, err := loader.LoadFromFile("testdata/testref.openapi.json")
if err != nil {
panic(err)
}
dec, err := jsoninfo.NewObjectDecoder(spec.Info.Extensions["x-my-extension"].(json.RawMessage))
if err != nil {
panic(err)
}
var value struct {
Key int `json:"k"`
}
if err = spec.Info.DecodeWith(dec, &value); err != nil {
panic(err)
}
fmt.Println(value.Key)
// Output: 42
}
func TestExtensionProps_EncodeWith(t *testing.T) {
t.Run("successfully encoded", func(t *testing.T) {
encoder := jsoninfo.NewObjectEncoder()
var extensionProps = ExtensionProps{
Extensions: map[string]interface{}{
"field1": "value1",
},
}
var value = struct {
Field1 string `json:"field1"`
Field2 string `json:"field2"`
}{}
err := extensionProps.EncodeWith(encoder, &value)
require.NoError(t, err)
})
}
func TestExtensionProps_DecodeWith(t *testing.T) {
data := []byte(`
{
"field1": "value1",
"field2": "value2"
}
`)
t.Run("successfully decode all the fields", func(t *testing.T) {
decoder, err := jsoninfo.NewObjectDecoder(data)
require.NoError(t, err)
var extensionProps = &ExtensionProps{
Extensions: map[string]interface{}{
"field1": "value1",
"field2": "value1",
},
}
var value = struct {
Field1 string `json:"field1"`
Field2 string `json:"field2"`
}{}
err = extensionProps.DecodeWith(decoder, &value)
require.NoError(t, err)
require.Equal(t, 0, len(extensionProps.Extensions))
require.Equal(t, "value1", value.Field1)
require.Equal(t, "value2", value.Field2)
})
t.Run("successfully decode some of the fields", func(t *testing.T) {
decoder, err := jsoninfo.NewObjectDecoder(data)
require.NoError(t, err)
var extensionProps = &ExtensionProps{
Extensions: map[string]interface{}{
"field1": "value1",
"field2": "value2",
},
}
var value = &struct {
Field1 string `json:"field1"`
}{}
err = extensionProps.DecodeWith(decoder, value)
require.NoError(t, err)
require.Equal(t, 1, len(extensionProps.Extensions))
require.Equal(t, "value1", value.Field1)
})
t.Run("successfully decode none of the fields", func(t *testing.T) {
decoder, err := jsoninfo.NewObjectDecoder(data)
require.NoError(t, err)
var extensionProps = &ExtensionProps{
Extensions: map[string]interface{}{
"field1": "value1",
"field2": "value2",
},
}
var value = struct {
Field3 string `json:"field3"`
Field4 string `json:"field4"`
}{}
err = extensionProps.DecodeWith(decoder, &value)
require.NoError(t, err)
require.Equal(t, 2, len(extensionProps.Extensions))
require.Empty(t, value.Field3)
require.Empty(t, value.Field4)
})
}