mirror of https://github.com/spf13/viper.git
82 lines
1.6 KiB
Go
82 lines
1.6 KiB
Go
package encoding
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import (
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"reflect"
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"testing"
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)
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type decoder struct {
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v map[string]any
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}
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func (d decoder) Decode(_ []byte, v map[string]any) error {
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for key, value := range d.v {
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v[key] = value
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}
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return nil
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}
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func TestDecoderRegistry_RegisterDecoder(t *testing.T) {
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t.Run("OK", func(t *testing.T) {
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registry := NewDecoderRegistry()
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err := registry.RegisterDecoder("myformat", decoder{})
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if err != nil {
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t.Fatal(err)
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}
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})
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t.Run("AlreadyRegistered", func(t *testing.T) {
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registry := NewDecoderRegistry()
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err := registry.RegisterDecoder("myformat", decoder{})
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if err != nil {
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t.Fatal(err)
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}
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err = registry.RegisterDecoder("myformat", decoder{})
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if err != ErrDecoderFormatAlreadyRegistered {
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t.Fatalf("expected ErrDecoderFormatAlreadyRegistered, got: %v", err)
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}
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})
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}
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func TestDecoderRegistry_Decode(t *testing.T) {
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t.Run("OK", func(t *testing.T) {
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registry := NewDecoderRegistry()
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decoder := decoder{
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v: map[string]any{
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"key": "value",
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},
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}
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err := registry.RegisterDecoder("myformat", decoder)
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if err != nil {
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t.Fatal(err)
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}
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v := map[string]any{}
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err = registry.Decode("myformat", []byte("key: value"), v)
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if err != nil {
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t.Fatal(err)
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}
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if !reflect.DeepEqual(decoder.v, v) {
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t.Fatalf("decoded value does not match the expected one\nactual: %+v\nexpected: %+v", v, decoder.v)
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}
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})
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t.Run("DecoderNotFound", func(t *testing.T) {
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registry := NewDecoderRegistry()
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v := map[string]any{}
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err := registry.Decode("myformat", nil, v)
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if err != ErrDecoderNotFound {
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t.Fatalf("expected ErrDecoderNotFound, got: %v", err)
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}
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})
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}
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