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// Copyright 2016 Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package uuid
import (
"encoding/json"
"reflect"
"testing"
)
var testUUID = MustParse("f47ac10b-58cc-0372-8567-0e02b2c3d479")
func TestJSON(t *testing.T) {
type S struct {
ID1 UUID
ID2 UUID
}
s1 := S{ID1: testUUID}
data, err := json.Marshal(&s1)
if err != nil {
t.Fatal(err)
}
var s2 S
if err := json.Unmarshal(data, &s2); err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(&s1, &s2) {
t.Errorf("got %#v, want %#v", s2, s1)
}
}
func TestJSONUnmarshal(t *testing.T) {
type S struct {
ID1 UUID
ID2 UUID `json:"ID2,omitempty"`
}
testCases := map[string]struct {
data []byte
expectedError error
expectedResult UUID
}{
"success": {
data: []byte(`{"ID1": "f47ac10b-58cc-0372-8567-0e02b2c3d479"}`),
expectedError: nil,
expectedResult: testUUID,
},
"zero": {
data: []byte(`{"ID1": "00000000-0000-0000-0000-000000000000"}`),
expectedError: nil,
expectedResult: Nil,
},
"null": {
data: []byte(`{"ID1": null}`),
expectedError: nil,
expectedResult: Nil,
},
"empty": {
data: []byte(`{"ID1": ""}`),
expectedError: invalidLengthError{len: 0},
expectedResult: Nil,
},
"omitempty": {
data: []byte(`{"ID2": ""}`),
expectedError: invalidLengthError{len: 0},
expectedResult: Nil,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
var s S
if err := json.Unmarshal(tc.data, &s); err != tc.expectedError {
t.Errorf("unexpected error: got %v, want %v", err, tc.expectedError)
}
if !reflect.DeepEqual(s.ID1, tc.expectedResult) {
t.Errorf("got %#v, want %#v", s.ID1, tc.expectedResult)
}
})
}
}
func BenchmarkUUID_MarshalJSON(b *testing.B) {
x := &struct {
UUID UUID `json:"uuid"`
}{}
var err error
x.UUID, err = Parse("f47ac10b-58cc-0372-8567-0e02b2c3d479")
if err != nil {
b.Fatal(err)
}
for i := 0; i < b.N; i++ {
js, err := json.Marshal(x)
if err != nil {
b.Fatalf("marshal json: %#v (%v)", js, err)
}
}
}
func BenchmarkUUID_UnmarshalJSON(b *testing.B) {
js := []byte(`{"uuid":"f47ac10b-58cc-0372-8567-0e02b2c3d479"}`)
var x *struct {
UUID UUID `json:"uuid"`
}
for i := 0; i < b.N; i++ {
err := json.Unmarshal(js, &x)
if err != nil {
b.Fatalf("marshal json: %#v (%v)", js, err)
}
}
}