gin/binding/form_mapping_test.go

638 lines
18 KiB
Go

// Copyright 2019 Gin Core Team. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package binding
import (
"encoding/hex"
"errors"
"mime/multipart"
"reflect"
"strconv"
"strings"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestMappingBaseTypes(t *testing.T) {
intPtr := func(i int) *int {
return &i
}
for _, tt := range []struct {
name string
value any
form string
expect any
}{
{"base type", struct{ F int }{}, "9", int(9)},
{"base type", struct{ F int8 }{}, "9", int8(9)},
{"base type", struct{ F int16 }{}, "9", int16(9)},
{"base type", struct{ F int32 }{}, "9", int32(9)},
{"base type", struct{ F int64 }{}, "9", int64(9)},
{"base type", struct{ F uint }{}, "9", uint(9)},
{"base type", struct{ F uint8 }{}, "9", uint8(9)},
{"base type", struct{ F uint16 }{}, "9", uint16(9)},
{"base type", struct{ F uint32 }{}, "9", uint32(9)},
{"base type", struct{ F uint64 }{}, "9", uint64(9)},
{"base type", struct{ F bool }{}, "True", true},
{"base type", struct{ F float32 }{}, "9.1", float32(9.1)},
{"base type", struct{ F float64 }{}, "9.1", float64(9.1)},
{"base type", struct{ F string }{}, "test", string("test")},
{"base type", struct{ F *int }{}, "9", intPtr(9)},
// zero values
{"zero value", struct{ F int }{}, "", int(0)},
{"zero value", struct{ F uint }{}, "", uint(0)},
{"zero value", struct{ F bool }{}, "", false},
{"zero value", struct{ F float32 }{}, "", float32(0)},
{"file value", struct{ F *multipart.FileHeader }{}, "", &multipart.FileHeader{}},
} {
tp := reflect.TypeOf(tt.value)
testName := tt.name + ":" + tp.Field(0).Type.String()
val := reflect.New(reflect.TypeOf(tt.value))
val.Elem().Set(reflect.ValueOf(tt.value))
field := val.Elem().Type().Field(0)
_, err := mapping(val, emptyField, formSource{field.Name: {tt.form}}, "form")
require.NoError(t, err, testName)
actual := val.Elem().Field(0).Interface()
assert.Equal(t, tt.expect, actual, testName)
}
}
func TestMappingDefault(t *testing.T) {
var s struct {
Str string `form:",default=defaultVal"`
Int int `form:",default=9"`
Slice []int `form:",default=9"`
Array [1]int `form:",default=9"`
}
err := mappingByPtr(&s, formSource{}, "form")
require.NoError(t, err)
assert.Equal(t, "defaultVal", s.Str)
assert.Equal(t, 9, s.Int)
assert.Equal(t, []int{9}, s.Slice)
assert.Equal(t, [1]int{9}, s.Array)
}
func TestMappingSkipField(t *testing.T) {
var s struct {
A int
}
err := mappingByPtr(&s, formSource{}, "form")
require.NoError(t, err)
assert.Equal(t, 0, s.A)
}
func TestMappingIgnoreField(t *testing.T) {
var s struct {
A int `form:"A"`
B int `form:"-"`
}
err := mappingByPtr(&s, formSource{"A": {"9"}, "B": {"9"}}, "form")
require.NoError(t, err)
assert.Equal(t, 9, s.A)
assert.Equal(t, 0, s.B)
}
func TestMappingUnexportedField(t *testing.T) {
var s struct {
A int `form:"a"`
b int `form:"b"`
}
err := mappingByPtr(&s, formSource{"a": {"9"}, "b": {"9"}}, "form")
require.NoError(t, err)
assert.Equal(t, 9, s.A)
assert.Equal(t, 0, s.b)
}
func TestMappingPrivateField(t *testing.T) {
var s struct {
f int `form:"field"`
}
err := mappingByPtr(&s, formSource{"field": {"6"}}, "form")
require.NoError(t, err)
assert.Equal(t, 0, s.f)
}
func TestMappingUnknownFieldType(t *testing.T) {
var s struct {
U uintptr
}
err := mappingByPtr(&s, formSource{"U": {"unknown"}}, "form")
require.Error(t, err)
assert.Equal(t, errUnknownType, err)
}
func TestMappingURI(t *testing.T) {
var s struct {
F int `uri:"field"`
}
err := mapURI(&s, map[string][]string{"field": {"6"}})
require.NoError(t, err)
assert.Equal(t, 6, s.F)
}
func TestMappingForm(t *testing.T) {
var s struct {
F int `form:"field"`
}
err := mapForm(&s, map[string][]string{"field": {"6"}})
require.NoError(t, err)
assert.Equal(t, 6, s.F)
}
func TestMappingFormFieldNotSent(t *testing.T) {
var s struct {
F string `form:"field,default=defVal"`
}
err := mapForm(&s, map[string][]string{})
require.NoError(t, err)
assert.Equal(t, "defVal", s.F)
}
func TestMappingFormWithEmptyToDefault(t *testing.T) {
var s struct {
F string `form:"field,default=DefVal"`
}
err := mapForm(&s, map[string][]string{"field": {""}})
require.NoError(t, err)
assert.Equal(t, "DefVal", s.F)
}
func TestMapFormWithTag(t *testing.T) {
var s struct {
F int `externalTag:"field"`
}
err := MapFormWithTag(&s, map[string][]string{"field": {"6"}}, "externalTag")
require.NoError(t, err)
assert.Equal(t, 6, s.F)
}
func TestMappingTime(t *testing.T) {
var s struct {
Time time.Time
LocalTime time.Time `time_format:"2006-01-02"`
ZeroValue time.Time
CSTTime time.Time `time_format:"2006-01-02" time_location:"Asia/Shanghai"`
UTCTime time.Time `time_format:"2006-01-02" time_utc:"1"`
}
var err error
time.Local, err = time.LoadLocation("Europe/Berlin")
require.NoError(t, err)
err = mapForm(&s, map[string][]string{
"Time": {"2019-01-20T16:02:58Z"},
"LocalTime": {"2019-01-20"},
"ZeroValue": {},
"CSTTime": {"2019-01-20"},
"UTCTime": {"2019-01-20"},
})
require.NoError(t, err)
assert.Equal(t, "2019-01-20 16:02:58 +0000 UTC", s.Time.String())
assert.Equal(t, "2019-01-20 00:00:00 +0100 CET", s.LocalTime.String())
assert.Equal(t, "2019-01-19 23:00:00 +0000 UTC", s.LocalTime.UTC().String())
assert.Equal(t, "0001-01-01 00:00:00 +0000 UTC", s.ZeroValue.String())
assert.Equal(t, "2019-01-20 00:00:00 +0800 CST", s.CSTTime.String())
assert.Equal(t, "2019-01-19 16:00:00 +0000 UTC", s.CSTTime.UTC().String())
assert.Equal(t, "2019-01-20 00:00:00 +0000 UTC", s.UTCTime.String())
// wrong location
var wrongLoc struct {
Time time.Time `time_location:"wrong"`
}
err = mapForm(&wrongLoc, map[string][]string{"Time": {"2019-01-20T16:02:58Z"}})
require.Error(t, err)
// wrong time value
var wrongTime struct {
Time time.Time
}
err = mapForm(&wrongTime, map[string][]string{"Time": {"wrong"}})
require.Error(t, err)
}
func TestMappingTimeDuration(t *testing.T) {
var s struct {
D time.Duration
}
// ok
err := mappingByPtr(&s, formSource{"D": {"5s"}}, "form")
require.NoError(t, err)
assert.Equal(t, 5*time.Second, s.D)
// error
err = mappingByPtr(&s, formSource{"D": {"wrong"}}, "form")
require.Error(t, err)
}
func TestMappingSlice(t *testing.T) {
var s struct {
Slice []int `form:"slice,default=9"`
}
// default value
err := mappingByPtr(&s, formSource{}, "form")
require.NoError(t, err)
assert.Equal(t, []int{9}, s.Slice)
// ok
err = mappingByPtr(&s, formSource{"slice": {"3", "4"}}, "form")
require.NoError(t, err)
assert.Equal(t, []int{3, 4}, s.Slice)
// error
err = mappingByPtr(&s, formSource{"slice": {"wrong"}}, "form")
require.Error(t, err)
}
func TestMappingArray(t *testing.T) {
var s struct {
Array [2]int `form:"array,default=9"`
}
// wrong default
err := mappingByPtr(&s, formSource{}, "form")
require.Error(t, err)
// ok
err = mappingByPtr(&s, formSource{"array": {"3", "4"}}, "form")
require.NoError(t, err)
assert.Equal(t, [2]int{3, 4}, s.Array)
// error - not enough vals
err = mappingByPtr(&s, formSource{"array": {"3"}}, "form")
require.Error(t, err)
// error - wrong value
err = mappingByPtr(&s, formSource{"array": {"wrong"}}, "form")
require.Error(t, err)
}
func TestMappingCollectionFormat(t *testing.T) {
var s struct {
SliceMulti []int `form:"slice_multi" collection_format:"multi"`
SliceCsv []int `form:"slice_csv" collection_format:"csv"`
SliceSsv []int `form:"slice_ssv" collection_format:"ssv"`
SliceTsv []int `form:"slice_tsv" collection_format:"tsv"`
SlicePipes []int `form:"slice_pipes" collection_format:"pipes"`
ArrayMulti [2]int `form:"array_multi" collection_format:"multi"`
ArrayCsv [2]int `form:"array_csv" collection_format:"csv"`
ArraySsv [2]int `form:"array_ssv" collection_format:"ssv"`
ArrayTsv [2]int `form:"array_tsv" collection_format:"tsv"`
ArrayPipes [2]int `form:"array_pipes" collection_format:"pipes"`
}
err := mappingByPtr(&s, formSource{
"slice_multi": {"1", "2"},
"slice_csv": {"1,2"},
"slice_ssv": {"1 2"},
"slice_tsv": {"1 2"},
"slice_pipes": {"1|2"},
"array_multi": {"1", "2"},
"array_csv": {"1,2"},
"array_ssv": {"1 2"},
"array_tsv": {"1 2"},
"array_pipes": {"1|2"},
}, "form")
require.NoError(t, err)
assert.Equal(t, []int{1, 2}, s.SliceMulti)
assert.Equal(t, []int{1, 2}, s.SliceCsv)
assert.Equal(t, []int{1, 2}, s.SliceSsv)
assert.Equal(t, []int{1, 2}, s.SliceTsv)
assert.Equal(t, []int{1, 2}, s.SlicePipes)
assert.Equal(t, [2]int{1, 2}, s.ArrayMulti)
assert.Equal(t, [2]int{1, 2}, s.ArrayCsv)
assert.Equal(t, [2]int{1, 2}, s.ArraySsv)
assert.Equal(t, [2]int{1, 2}, s.ArrayTsv)
assert.Equal(t, [2]int{1, 2}, s.ArrayPipes)
}
func TestMappingCollectionFormatInvalid(t *testing.T) {
var s struct {
SliceCsv []int `form:"slice_csv" collection_format:"xxx"`
}
err := mappingByPtr(&s, formSource{
"slice_csv": {"1,2"},
}, "form")
require.Error(t, err)
var s2 struct {
ArrayCsv [2]int `form:"array_csv" collection_format:"xxx"`
}
err = mappingByPtr(&s2, formSource{
"array_csv": {"1,2"},
}, "form")
require.Error(t, err)
}
func TestMappingMultipleDefaultWithCollectionFormat(t *testing.T) {
var s struct {
SliceMulti []int `form:",default=1;2;3" collection_format:"multi"`
SliceCsv []int `form:",default=1;2;3" collection_format:"csv"`
SliceSsv []int `form:",default=1 2 3" collection_format:"ssv"`
SliceTsv []int `form:",default=1\t2\t3" collection_format:"tsv"`
SlicePipes []int `form:",default=1|2|3" collection_format:"pipes"`
ArrayMulti [2]int `form:",default=1;2" collection_format:"multi"`
ArrayCsv [2]int `form:",default=1;2" collection_format:"csv"`
ArraySsv [2]int `form:",default=1 2" collection_format:"ssv"`
ArrayTsv [2]int `form:",default=1\t2" collection_format:"tsv"`
ArrayPipes [2]int `form:",default=1|2" collection_format:"pipes"`
SliceStringMulti []string `form:",default=1;2;3" collection_format:"multi"`
SliceStringCsv []string `form:",default=1;2;3" collection_format:"csv"`
SliceStringSsv []string `form:",default=1 2 3" collection_format:"ssv"`
SliceStringTsv []string `form:",default=1\t2\t3" collection_format:"tsv"`
SliceStringPipes []string `form:",default=1|2|3" collection_format:"pipes"`
ArrayStringMulti [2]string `form:",default=1;2" collection_format:"multi"`
ArrayStringCsv [2]string `form:",default=1;2" collection_format:"csv"`
ArrayStringSsv [2]string `form:",default=1 2" collection_format:"ssv"`
ArrayStringTsv [2]string `form:",default=1\t2" collection_format:"tsv"`
ArrayStringPipes [2]string `form:",default=1|2" collection_format:"pipes"`
}
err := mappingByPtr(&s, formSource{}, "form")
require.NoError(t, err)
assert.Equal(t, []int{1, 2, 3}, s.SliceMulti)
assert.Equal(t, []int{1, 2, 3}, s.SliceCsv)
assert.Equal(t, []int{1, 2, 3}, s.SliceSsv)
assert.Equal(t, []int{1, 2, 3}, s.SliceTsv)
assert.Equal(t, []int{1, 2, 3}, s.SlicePipes)
assert.Equal(t, [2]int{1, 2}, s.ArrayMulti)
assert.Equal(t, [2]int{1, 2}, s.ArrayCsv)
assert.Equal(t, [2]int{1, 2}, s.ArraySsv)
assert.Equal(t, [2]int{1, 2}, s.ArrayTsv)
assert.Equal(t, [2]int{1, 2}, s.ArrayPipes)
assert.Equal(t, []string{"1", "2", "3"}, s.SliceStringMulti)
assert.Equal(t, []string{"1", "2", "3"}, s.SliceStringCsv)
assert.Equal(t, []string{"1", "2", "3"}, s.SliceStringSsv)
assert.Equal(t, []string{"1", "2", "3"}, s.SliceStringTsv)
assert.Equal(t, []string{"1", "2", "3"}, s.SliceStringPipes)
assert.Equal(t, [2]string{"1", "2"}, s.ArrayStringMulti)
assert.Equal(t, [2]string{"1", "2"}, s.ArrayStringCsv)
assert.Equal(t, [2]string{"1", "2"}, s.ArrayStringSsv)
assert.Equal(t, [2]string{"1", "2"}, s.ArrayStringTsv)
assert.Equal(t, [2]string{"1", "2"}, s.ArrayStringPipes)
}
func TestMappingStructField(t *testing.T) {
var s struct {
J struct {
I int
}
}
err := mappingByPtr(&s, formSource{"J": {`{"I": 9}`}}, "form")
require.NoError(t, err)
assert.Equal(t, 9, s.J.I)
}
func TestMappingPtrField(t *testing.T) {
type ptrStruct struct {
Key int64 `json:"key"`
}
type ptrRequest struct {
Items []*ptrStruct `json:"items" form:"items"`
}
var err error
// With 0 items.
var req0 ptrRequest
err = mappingByPtr(&req0, formSource{}, "form")
require.NoError(t, err)
assert.Empty(t, req0.Items)
// With 1 item.
var req1 ptrRequest
err = mappingByPtr(&req1, formSource{"items": {`{"key": 1}`}}, "form")
require.NoError(t, err)
assert.Len(t, req1.Items, 1)
assert.EqualValues(t, 1, req1.Items[0].Key)
// With 2 items.
var req2 ptrRequest
err = mappingByPtr(&req2, formSource{"items": {`{"key": 1}`, `{"key": 2}`}}, "form")
require.NoError(t, err)
assert.Len(t, req2.Items, 2)
assert.EqualValues(t, 1, req2.Items[0].Key)
assert.EqualValues(t, 2, req2.Items[1].Key)
}
func TestMappingMapField(t *testing.T) {
var s struct {
M map[string]int
}
err := mappingByPtr(&s, formSource{"M": {`{"one": 1}`}}, "form")
require.NoError(t, err)
assert.Equal(t, map[string]int{"one": 1}, s.M)
}
func TestMappingIgnoredCircularRef(t *testing.T) {
type S struct {
S *S `form:"-"`
}
var s S
err := mappingByPtr(&s, formSource{}, "form")
require.NoError(t, err)
}
type customUnmarshalParamHex int
func (f *customUnmarshalParamHex) UnmarshalParam(param string) error {
v, err := strconv.ParseInt(param, 16, 64)
if err != nil {
return err
}
*f = customUnmarshalParamHex(v)
return nil
}
func TestMappingCustomUnmarshalParamHexWithFormTag(t *testing.T) {
var s struct {
Foo customUnmarshalParamHex `form:"foo"`
}
err := mappingByPtr(&s, formSource{"foo": {`f5`}}, "form")
require.NoError(t, err)
assert.EqualValues(t, 245, s.Foo)
}
func TestMappingCustomUnmarshalParamHexWithURITag(t *testing.T) {
var s struct {
Foo customUnmarshalParamHex `uri:"foo"`
}
err := mappingByPtr(&s, formSource{"foo": {`f5`}}, "uri")
require.NoError(t, err)
assert.EqualValues(t, 245, s.Foo)
}
type customUnmarshalParamType struct {
Protocol string
Path string
Name string
}
func (f *customUnmarshalParamType) UnmarshalParam(param string) error {
parts := strings.Split(param, ":")
if len(parts) != 3 {
return errors.New("invalid format")
}
f.Protocol = parts[0]
f.Path = parts[1]
f.Name = parts[2]
return nil
}
func TestMappingCustomStructTypeWithFormTag(t *testing.T) {
var s struct {
FileData customUnmarshalParamType `form:"data"`
}
err := mappingByPtr(&s, formSource{"data": {`file:/foo:happiness`}}, "form")
require.NoError(t, err)
assert.EqualValues(t, "file", s.FileData.Protocol)
assert.EqualValues(t, "/foo", s.FileData.Path)
assert.EqualValues(t, "happiness", s.FileData.Name)
}
func TestMappingCustomStructTypeWithURITag(t *testing.T) {
var s struct {
FileData customUnmarshalParamType `uri:"data"`
}
err := mappingByPtr(&s, formSource{"data": {`file:/foo:happiness`}}, "uri")
require.NoError(t, err)
assert.EqualValues(t, "file", s.FileData.Protocol)
assert.EqualValues(t, "/foo", s.FileData.Path)
assert.EqualValues(t, "happiness", s.FileData.Name)
}
func TestMappingCustomPointerStructTypeWithFormTag(t *testing.T) {
var s struct {
FileData *customUnmarshalParamType `form:"data"`
}
err := mappingByPtr(&s, formSource{"data": {`file:/foo:happiness`}}, "form")
require.NoError(t, err)
assert.EqualValues(t, "file", s.FileData.Protocol)
assert.EqualValues(t, "/foo", s.FileData.Path)
assert.EqualValues(t, "happiness", s.FileData.Name)
}
func TestMappingCustomPointerStructTypeWithURITag(t *testing.T) {
var s struct {
FileData *customUnmarshalParamType `uri:"data"`
}
err := mappingByPtr(&s, formSource{"data": {`file:/foo:happiness`}}, "uri")
require.NoError(t, err)
assert.EqualValues(t, "file", s.FileData.Protocol)
assert.EqualValues(t, "/foo", s.FileData.Path)
assert.EqualValues(t, "happiness", s.FileData.Name)
}
type customPath []string
func (p *customPath) UnmarshalParam(param string) error {
elems := strings.Split(param, "/")
n := len(elems)
if n < 2 {
return errors.New("invalid format")
}
*p = elems
return nil
}
func TestMappingCustomSliceUri(t *testing.T) {
var s struct {
FileData customPath `uri:"path"`
}
err := mappingByPtr(&s, formSource{"path": {`bar/foo`}}, "uri")
require.NoError(t, err)
assert.EqualValues(t, "bar", s.FileData[0])
assert.EqualValues(t, "foo", s.FileData[1])
}
func TestMappingCustomSliceForm(t *testing.T) {
var s struct {
FileData customPath `form:"path"`
}
err := mappingByPtr(&s, formSource{"path": {`bar/foo`}}, "form")
require.NoError(t, err)
assert.EqualValues(t, "bar", s.FileData[0])
assert.EqualValues(t, "foo", s.FileData[1])
}
type objectID [12]byte
func (o *objectID) UnmarshalParam(param string) error {
oid, err := convertTo(param)
if err != nil {
return err
}
*o = oid
return nil
}
func convertTo(s string) (objectID, error) {
var nilObjectID objectID
if len(s) != 24 {
return nilObjectID, errors.New("invalid format")
}
var oid [12]byte
_, err := hex.Decode(oid[:], []byte(s))
if err != nil {
return nilObjectID, err
}
return oid, nil
}
func TestMappingCustomArrayUri(t *testing.T) {
var s struct {
FileData objectID `uri:"id"`
}
val := `664a062ac74a8ad104e0e80f`
err := mappingByPtr(&s, formSource{"id": {val}}, "uri")
require.NoError(t, err)
expected, _ := convertTo(val)
assert.EqualValues(t, expected, s.FileData)
}
func TestMappingCustomArrayForm(t *testing.T) {
var s struct {
FileData objectID `form:"id"`
}
val := `664a062ac74a8ad104e0e80f`
err := mappingByPtr(&s, formSource{"id": {val}}, "form")
require.NoError(t, err)
expected, _ := convertTo(val)
assert.EqualValues(t, expected, s.FileData)
}