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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json
import (
"bytes"
"reflect"
"testing"
)
type Optionals struct {
Sr string `json:"sr"`
So string `json:"so,omitempty"`
Ir int `json:"omitempty"` // actually named omitempty, not an option
Io int `json:"io,omitempty"`
Slr []string `json:"slr,random"`
Slo []string `json:"slo,omitempty"`
Mr map[string]interface{} `json:"mr"`
Mo map[string]interface{} `json:",omitempty"`
}
var optionalsExpected = `{
"sr": "",
"omitempty": 0,
"slr": [],
"mr": {}
}`
func TestOmitEmpty(t *testing.T) {
var o Optionals
o.Mr = map[string]interface{}{}
o.Mo = map[string]interface{}{}
got, err := MarshalIndent(&o, "", " ")
if err != nil {
t.Fatal(err)
}
if got := string(got); got != optionalsExpected {
t.Errorf(" got: %s\nwant: %s\n", got, optionalsExpected)
}
}
type StringTag struct {
BoolStr bool `json:",string"`
IntStr int64 `json:",string"`
StrStr string `json:",string"`
}
var stringTagExpected = `{
"BoolStr": "true",
"IntStr": "42",
"StrStr": "\"xzbit\""
}`
func TestStringTag(t *testing.T) {
var s StringTag
s.BoolStr = true
s.IntStr = 42
s.StrStr = "xzbit"
got, err := MarshalIndent(&s, "", " ")
if err != nil {
t.Fatal(err)
}
if got := string(got); got != stringTagExpected {
t.Fatalf(" got: %s\nwant: %s\n", got, stringTagExpected)
}
// Verify that it round-trips.
var s2 StringTag
err = NewDecoder(bytes.NewBuffer(got)).Decode(&s2)
if err != nil {
t.Fatalf("Decode: %v", err)
}
if !reflect.DeepEqual(s, s2) {
t.Fatalf("decode didn't match.\nsource: %#v\nEncoded as:\n%s\ndecode: %#v", s, string(got), s2)
}
}
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