954 lines
18 KiB
Go
954 lines
18 KiB
Go
package mapstructure
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import (
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"reflect"
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"sort"
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"testing"
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)
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type Basic struct {
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Vstring string
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Vint int
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Vuint uint
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Vbool bool
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Vfloat float64
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Vextra string
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vsilent bool
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Vdata interface{}
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}
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type Embedded struct {
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Basic
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Vunique string
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}
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type EmbeddedPointer struct {
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*Basic
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Vunique string
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}
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type EmbeddedSquash struct {
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Basic `mapstructure:",squash"`
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Vunique string
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}
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type Map struct {
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Vfoo string
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Vother map[string]string
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}
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type MapOfStruct struct {
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Value map[string]Basic
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}
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type Nested struct {
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Vfoo string
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Vbar Basic
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}
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type NestedPointer struct {
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Vfoo string
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Vbar *Basic
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}
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type Slice struct {
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Vfoo string
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Vbar []string
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}
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type SliceOfStruct struct {
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Value []Basic
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}
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type Tagged struct {
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Extra string `mapstructure:"bar,what,what"`
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Value string `mapstructure:"foo"`
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}
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type TypeConversionResult struct {
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IntToFloat float32
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IntToUint uint
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IntToBool bool
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IntToString string
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UintToInt int
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UintToFloat float32
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UintToBool bool
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UintToString string
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BoolToInt int
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BoolToUint uint
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BoolToFloat float32
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BoolToString string
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FloatToInt int
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FloatToUint uint
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FloatToBool bool
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FloatToString string
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SliceUint8ToString string
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StringToInt int
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StringToUint uint
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StringToBool bool
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StringToFloat float32
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SliceToMap map[string]interface{}
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MapToSlice []interface{}
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}
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func TestBasicTypes(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vstring": "foo",
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"vint": 42,
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"Vuint": 42,
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"vbool": true,
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"Vfloat": 42.42,
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"vsilent": true,
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"vdata": 42,
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}
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var result Basic
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err := Decode(input, &result)
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if err != nil {
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t.Errorf("got an err: %s", err.Error())
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t.FailNow()
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}
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if result.Vstring != "foo" {
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t.Errorf("vstring value should be 'foo': %#v", result.Vstring)
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}
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if result.Vint != 42 {
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t.Errorf("vint value should be 42: %#v", result.Vint)
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}
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if result.Vuint != 42 {
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t.Errorf("vuint value should be 42: %#v", result.Vuint)
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}
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if result.Vbool != true {
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t.Errorf("vbool value should be true: %#v", result.Vbool)
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}
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if result.Vfloat != 42.42 {
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t.Errorf("vfloat value should be 42.42: %#v", result.Vfloat)
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}
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if result.Vextra != "" {
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t.Errorf("vextra value should be empty: %#v", result.Vextra)
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}
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if result.vsilent != false {
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t.Error("vsilent should not be set, it is unexported")
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}
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if result.Vdata != 42 {
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t.Error("vdata should be valid")
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}
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}
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func TestBasic_IntWithFloat(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vint": float64(42),
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}
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var result Basic
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("got an err: %s", err)
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}
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}
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func TestDecode_Embedded(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vstring": "foo",
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"Basic": map[string]interface{}{
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"vstring": "innerfoo",
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},
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"vunique": "bar",
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}
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var result Embedded
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("got an err: %s", err.Error())
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}
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if result.Vstring != "innerfoo" {
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t.Errorf("vstring value should be 'innerfoo': %#v", result.Vstring)
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}
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if result.Vunique != "bar" {
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t.Errorf("vunique value should be 'bar': %#v", result.Vunique)
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}
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}
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func TestDecode_EmbeddedPointer(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vstring": "foo",
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"Basic": map[string]interface{}{
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"vstring": "innerfoo",
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},
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"vunique": "bar",
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}
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var result EmbeddedPointer
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err := Decode(input, &result)
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if err == nil {
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t.Fatal("should get error")
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}
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}
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func TestDecode_EmbeddedSquash(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vstring": "foo",
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"vunique": "bar",
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}
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var result EmbeddedSquash
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("got an err: %s", err.Error())
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}
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if result.Vstring != "foo" {
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t.Errorf("vstring value should be 'foo': %#v", result.Vstring)
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}
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if result.Vunique != "bar" {
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t.Errorf("vunique value should be 'bar': %#v", result.Vunique)
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}
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}
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func TestDecode_DecodeHook(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vint": "WHAT",
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}
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decodeHook := func(from reflect.Kind, to reflect.Kind, v interface{}) (interface{}, error) {
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if from == reflect.String && to != reflect.String {
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return 5, nil
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}
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return v, nil
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}
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var result Basic
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config := &DecoderConfig{
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DecodeHook: decodeHook,
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Result: &result,
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}
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decoder, err := NewDecoder(config)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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err = decoder.Decode(input)
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if err != nil {
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t.Fatalf("got an err: %s", err)
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}
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if result.Vint != 5 {
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t.Errorf("vint should be 5: %#v", result.Vint)
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}
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}
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func TestDecode_DecodeHookType(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vint": "WHAT",
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}
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decodeHook := func(from reflect.Type, to reflect.Type, v interface{}) (interface{}, error) {
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if from.Kind() == reflect.String &&
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to.Kind() != reflect.String {
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return 5, nil
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}
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return v, nil
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}
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var result Basic
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config := &DecoderConfig{
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DecodeHook: decodeHook,
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Result: &result,
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}
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decoder, err := NewDecoder(config)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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err = decoder.Decode(input)
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if err != nil {
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t.Fatalf("got an err: %s", err)
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}
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if result.Vint != 5 {
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t.Errorf("vint should be 5: %#v", result.Vint)
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}
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}
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func TestDecode_Nil(t *testing.T) {
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t.Parallel()
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var input interface{} = nil
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result := Basic{
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Vstring: "foo",
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}
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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if result.Vstring != "foo" {
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t.Fatalf("bad: %#v", result.Vstring)
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}
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}
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func TestDecode_NonStruct(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"foo": "bar",
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"bar": "baz",
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}
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var result map[string]string
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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if result["foo"] != "bar" {
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t.Fatal("foo is not bar")
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}
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}
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func TestDecode_StructMatch(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vbar": Basic{
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Vstring: "foo",
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},
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}
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var result Nested
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("got an err: %s", err.Error())
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}
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if result.Vbar.Vstring != "foo" {
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t.Errorf("bad: %#v", result)
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}
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}
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func TestDecode_TypeConversion(t *testing.T) {
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input := map[string]interface{}{
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"IntToFloat": 42,
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"IntToUint": 42,
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"IntToBool": 1,
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"IntToString": 42,
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"UintToInt": 42,
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"UintToFloat": 42,
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"UintToBool": 42,
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"UintToString": 42,
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"BoolToInt": true,
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"BoolToUint": true,
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"BoolToFloat": true,
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"BoolToString": true,
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"FloatToInt": 42.42,
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"FloatToUint": 42.42,
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"FloatToBool": 42.42,
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"FloatToString": 42.42,
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"SliceUint8ToString": []uint8("foo"),
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"StringToInt": "42",
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"StringToUint": "42",
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"StringToBool": "1",
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"StringToFloat": "42.42",
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"SliceToMap": []interface{}{},
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"MapToSlice": map[string]interface{}{},
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}
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expectedResultStrict := TypeConversionResult{
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IntToFloat: 42.0,
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IntToUint: 42,
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UintToInt: 42,
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UintToFloat: 42,
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BoolToInt: 0,
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BoolToUint: 0,
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BoolToFloat: 0,
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FloatToInt: 42,
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FloatToUint: 42,
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}
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expectedResultWeak := TypeConversionResult{
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IntToFloat: 42.0,
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IntToUint: 42,
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IntToBool: true,
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IntToString: "42",
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UintToInt: 42,
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UintToFloat: 42,
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UintToBool: true,
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UintToString: "42",
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BoolToInt: 1,
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BoolToUint: 1,
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BoolToFloat: 1,
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BoolToString: "1",
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FloatToInt: 42,
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FloatToUint: 42,
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FloatToBool: true,
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FloatToString: "42.42",
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SliceUint8ToString: "foo",
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StringToInt: 42,
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StringToUint: 42,
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StringToBool: true,
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StringToFloat: 42.42,
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SliceToMap: map[string]interface{}{},
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MapToSlice: []interface{}{},
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}
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// Test strict type conversion
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var resultStrict TypeConversionResult
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err := Decode(input, &resultStrict)
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if err == nil {
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t.Errorf("should return an error")
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}
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if !reflect.DeepEqual(resultStrict, expectedResultStrict) {
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t.Errorf("expected %v, got: %v", expectedResultStrict, resultStrict)
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}
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// Test weak type conversion
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var decoder *Decoder
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var resultWeak TypeConversionResult
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config := &DecoderConfig{
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WeaklyTypedInput: true,
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Result: &resultWeak,
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}
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decoder, err = NewDecoder(config)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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err = decoder.Decode(input)
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if err != nil {
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t.Fatalf("got an err: %s", err)
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}
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if !reflect.DeepEqual(resultWeak, expectedResultWeak) {
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t.Errorf("expected \n%#v, got: \n%#v", expectedResultWeak, resultWeak)
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}
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}
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func TestDecoder_ErrorUnused(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vstring": "hello",
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"foo": "bar",
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}
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var result Basic
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config := &DecoderConfig{
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ErrorUnused: true,
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Result: &result,
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}
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decoder, err := NewDecoder(config)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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err = decoder.Decode(input)
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if err == nil {
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t.Fatal("expected error")
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}
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}
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func TestMap(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vfoo": "foo",
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"vother": map[interface{}]interface{}{
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"foo": "foo",
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"bar": "bar",
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},
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}
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var result Map
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("got an error: %s", err)
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}
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if result.Vfoo != "foo" {
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t.Errorf("vfoo value should be 'foo': %#v", result.Vfoo)
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}
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if result.Vother == nil {
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t.Fatal("vother should not be nil")
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}
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if len(result.Vother) != 2 {
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t.Error("vother should have two items")
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}
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if result.Vother["foo"] != "foo" {
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t.Errorf("'foo' key should be foo, got: %#v", result.Vother["foo"])
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}
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if result.Vother["bar"] != "bar" {
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t.Errorf("'bar' key should be bar, got: %#v", result.Vother["bar"])
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}
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}
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func TestMapMerge(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vfoo": "foo",
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"vother": map[interface{}]interface{}{
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"foo": "foo",
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"bar": "bar",
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},
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}
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var result Map
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result.Vother = map[string]string{"hello": "world"}
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("got an error: %s", err)
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}
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if result.Vfoo != "foo" {
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t.Errorf("vfoo value should be 'foo': %#v", result.Vfoo)
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}
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expected := map[string]string{
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"foo": "foo",
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"bar": "bar",
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"hello": "world",
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}
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if !reflect.DeepEqual(result.Vother, expected) {
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t.Errorf("bad: %#v", result.Vother)
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}
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}
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func TestMapOfStruct(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"value": map[string]interface{}{
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"foo": map[string]string{"vstring": "one"},
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"bar": map[string]string{"vstring": "two"},
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},
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}
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var result MapOfStruct
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("got an err: %s", err)
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}
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if result.Value == nil {
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t.Fatal("value should not be nil")
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}
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if len(result.Value) != 2 {
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t.Error("value should have two items")
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}
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if result.Value["foo"].Vstring != "one" {
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t.Errorf("foo value should be 'one', got: %s", result.Value["foo"].Vstring)
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}
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if result.Value["bar"].Vstring != "two" {
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t.Errorf("bar value should be 'two', got: %s", result.Value["bar"].Vstring)
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}
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}
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func TestNestedType(t *testing.T) {
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t.Parallel()
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input := map[string]interface{}{
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"vfoo": "foo",
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"vbar": map[string]interface{}{
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"vstring": "foo",
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"vint": 42,
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"vbool": true,
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},
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}
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var result Nested
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err := Decode(input, &result)
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if err != nil {
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t.Fatalf("got an err: %s", err.Error())
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}
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if result.Vfoo != "foo" {
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t.Errorf("vfoo value should be 'foo': %#v", result.Vfoo)
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}
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if result.Vbar.Vstring != "foo" {
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t.Errorf("vstring value should be 'foo': %#v", result.Vbar.Vstring)
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}
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if result.Vbar.Vint != 42 {
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t.Errorf("vint value should be 42: %#v", result.Vbar.Vint)
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}
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if result.Vbar.Vbool != true {
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t.Errorf("vbool value should be true: %#v", result.Vbar.Vbool)
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|
}
|
|
|
|
if result.Vbar.Vextra != "" {
|
|
t.Errorf("vextra value should be empty: %#v", result.Vbar.Vextra)
|
|
}
|
|
}
|
|
|
|
func TestNestedTypePointer(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
input := map[string]interface{}{
|
|
"vfoo": "foo",
|
|
"vbar": &map[string]interface{}{
|
|
"vstring": "foo",
|
|
"vint": 42,
|
|
"vbool": true,
|
|
},
|
|
}
|
|
|
|
var result NestedPointer
|
|
err := Decode(input, &result)
|
|
if err != nil {
|
|
t.Fatalf("got an err: %s", err.Error())
|
|
}
|
|
|
|
if result.Vfoo != "foo" {
|
|
t.Errorf("vfoo value should be 'foo': %#v", result.Vfoo)
|
|
}
|
|
|
|
if result.Vbar.Vstring != "foo" {
|
|
t.Errorf("vstring value should be 'foo': %#v", result.Vbar.Vstring)
|
|
}
|
|
|
|
if result.Vbar.Vint != 42 {
|
|
t.Errorf("vint value should be 42: %#v", result.Vbar.Vint)
|
|
}
|
|
|
|
if result.Vbar.Vbool != true {
|
|
t.Errorf("vbool value should be true: %#v", result.Vbar.Vbool)
|
|
}
|
|
|
|
if result.Vbar.Vextra != "" {
|
|
t.Errorf("vextra value should be empty: %#v", result.Vbar.Vextra)
|
|
}
|
|
}
|
|
|
|
func TestSlice(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
inputStringSlice := map[string]interface{}{
|
|
"vfoo": "foo",
|
|
"vbar": []string{"foo", "bar", "baz"},
|
|
}
|
|
|
|
inputStringSlicePointer := map[string]interface{}{
|
|
"vfoo": "foo",
|
|
"vbar": &[]string{"foo", "bar", "baz"},
|
|
}
|
|
|
|
outputStringSlice := &Slice{
|
|
"foo",
|
|
[]string{"foo", "bar", "baz"},
|
|
}
|
|
|
|
testSliceInput(t, inputStringSlice, outputStringSlice)
|
|
testSliceInput(t, inputStringSlicePointer, outputStringSlice)
|
|
}
|
|
|
|
func TestInvalidSlice(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
input := map[string]interface{}{
|
|
"vfoo": "foo",
|
|
"vbar": 42,
|
|
}
|
|
|
|
result := Slice{}
|
|
err := Decode(input, &result)
|
|
if err == nil {
|
|
t.Errorf("expected failure")
|
|
}
|
|
}
|
|
|
|
func TestSliceOfStruct(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
input := map[string]interface{}{
|
|
"value": []map[string]interface{}{
|
|
{"vstring": "one"},
|
|
{"vstring": "two"},
|
|
},
|
|
}
|
|
|
|
var result SliceOfStruct
|
|
err := Decode(input, &result)
|
|
if err != nil {
|
|
t.Fatalf("got unexpected error: %s", err)
|
|
}
|
|
|
|
if len(result.Value) != 2 {
|
|
t.Fatalf("expected two values, got %d", len(result.Value))
|
|
}
|
|
|
|
if result.Value[0].Vstring != "one" {
|
|
t.Errorf("first value should be 'one', got: %s", result.Value[0].Vstring)
|
|
}
|
|
|
|
if result.Value[1].Vstring != "two" {
|
|
t.Errorf("second value should be 'two', got: %s", result.Value[1].Vstring)
|
|
}
|
|
}
|
|
|
|
func TestInvalidType(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
input := map[string]interface{}{
|
|
"vstring": 42,
|
|
}
|
|
|
|
var result Basic
|
|
err := Decode(input, &result)
|
|
if err == nil {
|
|
t.Fatal("error should exist")
|
|
}
|
|
|
|
derr, ok := err.(*Error)
|
|
if !ok {
|
|
t.Fatalf("error should be kind of Error, instead: %#v", err)
|
|
}
|
|
|
|
if derr.Errors[0] != "'Vstring' expected type 'string', got unconvertible type 'int'" {
|
|
t.Errorf("got unexpected error: %s", err)
|
|
}
|
|
|
|
inputNegIntUint := map[string]interface{}{
|
|
"vuint": -42,
|
|
}
|
|
|
|
err = Decode(inputNegIntUint, &result)
|
|
if err == nil {
|
|
t.Fatal("error should exist")
|
|
}
|
|
|
|
derr, ok = err.(*Error)
|
|
if !ok {
|
|
t.Fatalf("error should be kind of Error, instead: %#v", err)
|
|
}
|
|
|
|
if derr.Errors[0] != "cannot parse 'Vuint', -42 overflows uint" {
|
|
t.Errorf("got unexpected error: %s", err)
|
|
}
|
|
|
|
inputNegFloatUint := map[string]interface{}{
|
|
"vuint": -42.0,
|
|
}
|
|
|
|
err = Decode(inputNegFloatUint, &result)
|
|
if err == nil {
|
|
t.Fatal("error should exist")
|
|
}
|
|
|
|
derr, ok = err.(*Error)
|
|
if !ok {
|
|
t.Fatalf("error should be kind of Error, instead: %#v", err)
|
|
}
|
|
|
|
if derr.Errors[0] != "cannot parse 'Vuint', -42.000000 overflows uint" {
|
|
t.Errorf("got unexpected error: %s", err)
|
|
}
|
|
}
|
|
|
|
func TestMetadata(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
input := map[string]interface{}{
|
|
"vfoo": "foo",
|
|
"vbar": map[string]interface{}{
|
|
"vstring": "foo",
|
|
"Vuint": 42,
|
|
"foo": "bar",
|
|
},
|
|
"bar": "nil",
|
|
}
|
|
|
|
var md Metadata
|
|
var result Nested
|
|
config := &DecoderConfig{
|
|
Metadata: &md,
|
|
Result: &result,
|
|
}
|
|
|
|
decoder, err := NewDecoder(config)
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
|
|
err = decoder.Decode(input)
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err.Error())
|
|
}
|
|
|
|
expectedKeys := []string{"Vbar", "Vbar.Vstring", "Vbar.Vuint", "Vfoo"}
|
|
sort.Strings(md.Keys)
|
|
if !reflect.DeepEqual(md.Keys, expectedKeys) {
|
|
t.Fatalf("bad keys: %#v", md.Keys)
|
|
}
|
|
|
|
expectedUnused := []string{"Vbar.foo", "bar"}
|
|
if !reflect.DeepEqual(md.Unused, expectedUnused) {
|
|
t.Fatalf("bad unused: %#v", md.Unused)
|
|
}
|
|
}
|
|
|
|
func TestMetadata_Embedded(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
input := map[string]interface{}{
|
|
"vstring": "foo",
|
|
"vunique": "bar",
|
|
}
|
|
|
|
var md Metadata
|
|
var result EmbeddedSquash
|
|
config := &DecoderConfig{
|
|
Metadata: &md,
|
|
Result: &result,
|
|
}
|
|
|
|
decoder, err := NewDecoder(config)
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
|
|
err = decoder.Decode(input)
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err.Error())
|
|
}
|
|
|
|
expectedKeys := []string{"Vstring", "Vunique"}
|
|
|
|
sort.Strings(md.Keys)
|
|
if !reflect.DeepEqual(md.Keys, expectedKeys) {
|
|
t.Fatalf("bad keys: %#v", md.Keys)
|
|
}
|
|
|
|
expectedUnused := []string{}
|
|
if !reflect.DeepEqual(md.Unused, expectedUnused) {
|
|
t.Fatalf("bad unused: %#v", md.Unused)
|
|
}
|
|
}
|
|
|
|
func TestNonPtrValue(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
err := Decode(map[string]interface{}{}, Basic{})
|
|
if err == nil {
|
|
t.Fatal("error should exist")
|
|
}
|
|
|
|
if err.Error() != "result must be a pointer" {
|
|
t.Errorf("got unexpected error: %s", err)
|
|
}
|
|
}
|
|
|
|
func TestTagged(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
input := map[string]interface{}{
|
|
"foo": "bar",
|
|
"bar": "value",
|
|
}
|
|
|
|
var result Tagged
|
|
err := Decode(input, &result)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %s", err)
|
|
}
|
|
|
|
if result.Value != "bar" {
|
|
t.Errorf("value should be 'bar', got: %#v", result.Value)
|
|
}
|
|
|
|
if result.Extra != "value" {
|
|
t.Errorf("extra should be 'value', got: %#v", result.Extra)
|
|
}
|
|
}
|
|
|
|
func TestWeakDecode(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
input := map[string]interface{}{
|
|
"foo": "4",
|
|
"bar": "value",
|
|
}
|
|
|
|
var result struct {
|
|
Foo int
|
|
Bar string
|
|
}
|
|
|
|
if err := WeakDecode(input, &result); err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
if result.Foo != 4 {
|
|
t.Fatalf("bad: %#v", result)
|
|
}
|
|
if result.Bar != "value" {
|
|
t.Fatalf("bad: %#v", result)
|
|
}
|
|
}
|
|
|
|
func testSliceInput(t *testing.T, input map[string]interface{}, expected *Slice) {
|
|
var result Slice
|
|
err := Decode(input, &result)
|
|
if err != nil {
|
|
t.Fatalf("got error: %s", err)
|
|
}
|
|
|
|
if result.Vfoo != expected.Vfoo {
|
|
t.Errorf("Vfoo expected '%s', got '%s'", expected.Vfoo, result.Vfoo)
|
|
}
|
|
|
|
if result.Vbar == nil {
|
|
t.Fatalf("Vbar a slice, got '%#v'", result.Vbar)
|
|
}
|
|
|
|
if len(result.Vbar) != len(expected.Vbar) {
|
|
t.Errorf("Vbar length should be %d, got %d", len(expected.Vbar), len(result.Vbar))
|
|
}
|
|
|
|
for i, v := range result.Vbar {
|
|
if v != expected.Vbar[i] {
|
|
t.Errorf(
|
|
"Vbar[%d] should be '%#v', got '%#v'",
|
|
i, expected.Vbar[i], v)
|
|
}
|
|
}
|
|
}
|