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package pgtype_test
import (
"bytes"
"reflect"
"testing"
"github.com/jackc/pgtype"
"github.com/jackc/pgtype/testutil"
)
func TestJSONTranscode(t *testing.T) {
testutil.TestSuccessfulTranscode(t, "json", []interface{}{
&pgtype.JSON{Bytes: []byte("{}"), Status: pgtype.Present},
&pgtype.JSON{Bytes: []byte("null"), Status: pgtype.Present},
&pgtype.JSON{Bytes: []byte("42"), Status: pgtype.Present},
&pgtype.JSON{Bytes: []byte(`"hello"`), Status: pgtype.Present},
&pgtype.JSON{Status: pgtype.Null},
})
}
func TestJSONSet(t *testing.T) {
successfulTests := []struct {
source interface{}
result pgtype.JSON
}{
{source: "{}", result: pgtype.JSON{Bytes: []byte("{}"), Status: pgtype.Present}},
{source: []byte("{}"), result: pgtype.JSON{Bytes: []byte("{}"), Status: pgtype.Present}},
{source: ([]byte)(nil), result: pgtype.JSON{Status: pgtype.Null}},
{source: (*string)(nil), result: pgtype.JSON{Status: pgtype.Null}},
{source: []int{1, 2, 3}, result: pgtype.JSON{Bytes: []byte("[1,2,3]"), Status: pgtype.Present}},
{source: map[string]interface{}{"foo": "bar"}, result: pgtype.JSON{Bytes: []byte(`{"foo":"bar"}`), Status: pgtype.Present}},
}
for i, tt := range successfulTests {
var d pgtype.JSON
err := d.Set(tt.source)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if !reflect.DeepEqual(d, tt.result) {
t.Errorf("%d: expected %v to convert to %v, but it was %v", i, tt.source, tt.result, d)
}
}
}
func TestJSONAssignTo(t *testing.T) {
var s string
var ps *string
var b []byte
rawStringTests := []struct {
src pgtype.JSON
dst *string
expected string
}{
{src: pgtype.JSON{Bytes: []byte("{}"), Status: pgtype.Present}, dst: &s, expected: "{}"},
}
for i, tt := range rawStringTests {
err := tt.src.AssignTo(tt.dst)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if *tt.dst != tt.expected {
t.Errorf("%d: expected %v to assign %v, but result was %v", i, tt.src, tt.expected, *tt.dst)
}
}
rawBytesTests := []struct {
src pgtype.JSON
dst *[]byte
expected []byte
}{
{src: pgtype.JSON{Bytes: []byte("{}"), Status: pgtype.Present}, dst: &b, expected: []byte("{}")},
{src: pgtype.JSON{Status: pgtype.Null}, dst: &b, expected: (([]byte)(nil))},
}
for i, tt := range rawBytesTests {
err := tt.src.AssignTo(tt.dst)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if bytes.Compare(tt.expected, *tt.dst) != 0 {
t.Errorf("%d: expected %v to assign %v, but result was %v", i, tt.src, tt.expected, *tt.dst)
}
}
var mapDst map[string]interface{}
type structDst struct {
Name string `json:"name"`
Age int `json:"age"`
}
var strDst structDst
unmarshalTests := []struct {
src pgtype.JSON
dst interface{}
expected interface{}
}{
{src: pgtype.JSON{Bytes: []byte(`{"foo":"bar"}`), Status: pgtype.Present}, dst: &mapDst, expected: map[string]interface{}{"foo": "bar"}},
{src: pgtype.JSON{Bytes: []byte(`{"name":"John","age":42}`), Status: pgtype.Present}, dst: &strDst, expected: structDst{Name: "John", Age: 42}},
}
for i, tt := range unmarshalTests {
err := tt.src.AssignTo(tt.dst)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if dst := reflect.ValueOf(tt.dst).Elem().Interface(); !reflect.DeepEqual(dst, tt.expected) {
t.Errorf("%d: expected %v to assign %v, but result was %v", i, tt.src, tt.expected, dst)
}
}
pointerAllocTests := []struct {
src pgtype.JSON
dst **string
expected *string
}{
{src: pgtype.JSON{Status: pgtype.Null}, dst: &ps, expected: ((*string)(nil))},
}
for i, tt := range pointerAllocTests {
err := tt.src.AssignTo(tt.dst)
if err != nil {
t.Errorf("%d: %v", i, err)
}
if *tt.dst != tt.expected {
t.Errorf("%d: expected %v to assign %v, but result was %v", i, tt.src, tt.expected, *tt.dst)
}
}
}
func TestJSONMarshalJSON(t *testing.T) {
successfulTests := []struct {
source pgtype.JSON
result string
}{
{source: pgtype.JSON{Status: pgtype.Null}, result: "null"},
{source: pgtype.JSON{Bytes: []byte("{\"a\": 1}"), Status: pgtype.Present}, result: "{\"a\": 1}"},
}
for i, tt := range successfulTests {
r, err := tt.source.MarshalJSON()
if err != nil {
t.Errorf("%d: %v", i, err)
}
if string(r) != tt.result {
t.Errorf("%d: expected %v to convert to %v, but it was %v", i, tt.source, tt.result, string(r))
}
}
}
func TestJSONUnmarshalJSON(t *testing.T) {
successfulTests := []struct {
source string
result pgtype.JSON
}{
{source: "null", result: pgtype.JSON{Status: pgtype.Null}},
{source: "{\"a\": 1}", result: pgtype.JSON{Bytes: []byte("{\"a\": 1}"), Status: pgtype.Present}},
}
for i, tt := range successfulTests {
var r pgtype.JSON
err := r.UnmarshalJSON([]byte(tt.source))
if err != nil {
t.Errorf("%d: %v", i, err)
}
if string(r.Bytes) != string(tt.result.Bytes) || r.Status != tt.result.Status {
t.Errorf("%d: expected %v to convert to %v, but it was %v", i, tt.source, tt.result, r)
}
}
}
|
