spf13--viper/encoding_test.go

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package viper
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
type codec struct{}
func (codec) Encode(_ map[string]any) ([]byte, error) {
return nil, nil
}
func (codec) Decode(_ []byte, _ map[string]any) error {
return nil
}
func TestDefaultCodecRegistry(t *testing.T) {
t.Run("OK", func(t *testing.T) {
registry := NewCodecRegistry()
c := codec{}
err := registry.RegisterCodec("myformat", c)
require.NoError(t, err)
encoder, err := registry.Encoder("myformat")
require.NoError(t, err)
assert.Equal(t, c, encoder)
decoder, err := registry.Decoder("myformat")
require.NoError(t, err)
assert.Equal(t, c, decoder)
})
t.Run("CodecNotFound", func(t *testing.T) {
registry := NewCodecRegistry()
_, err := registry.Encoder("myformat")
require.Error(t, err)
_, err = registry.Decoder("myformat")
require.Error(t, err)
})
t.Run("FormatIsCaseInsensitive", func(t *testing.T) {
registry := NewCodecRegistry()
c := codec{}
err := registry.RegisterCodec("MYFORMAT", c)
require.NoError(t, err)
{
encoder, err := registry.Encoder("myformat")
require.NoError(t, err)
assert.Equal(t, c, encoder)
}
{
encoder, err := registry.Encoder("MYFORMAT")
require.NoError(t, err)
assert.Equal(t, c, encoder)
}
{
decoder, err := registry.Decoder("myformat")
require.NoError(t, err)
assert.Equal(t, c, decoder)
}
{
decoder, err := registry.Decoder("MYFORMAT")
require.NoError(t, err)
assert.Equal(t, c, decoder)
}
})
t.Run("OverrideDefault", func(t *testing.T) {
registry := NewCodecRegistry()
c := codec{}
err := registry.RegisterCodec("yaml", c)
require.NoError(t, err)
encoder, err := registry.Encoder("yaml")
require.NoError(t, err)
assert.Equal(t, c, encoder)
decoder, err := registry.Decoder("yaml")
require.NoError(t, err)
assert.Equal(t, c, decoder)
})
}