spf13--viper/internal/encoding/json/codec_test.go

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package json
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// encoded form of the data
const encoded = `{
"key": "value",
"list": [
"item1",
"item2",
"item3"
],
"map": {
"key": "value"
},
"nested_map": {
"map": {
"key": "value",
"list": [
"item1",
"item2",
"item3"
]
}
}
}`
// Viper's internal representation
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var data = map[string]any{
"key": "value",
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"list": []any{
"item1",
"item2",
"item3",
},
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"map": map[string]any{
"key": "value",
},
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"nested_map": map[string]any{
"map": map[string]any{
"key": "value",
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"list": []any{
"item1",
"item2",
"item3",
},
},
},
}
func TestCodec_Encode(t *testing.T) {
codec := Codec{}
b, err := codec.Encode(data)
require.NoError(t, err)
assert.Equal(t, encoded, string(b))
}
func TestCodec_Decode(t *testing.T) {
t.Run("OK", func(t *testing.T) {
codec := Codec{}
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v := map[string]any{}
err := codec.Decode([]byte(encoded), v)
require.NoError(t, err)
assert.Equal(t, data, v)
})
t.Run("InvalidData", func(t *testing.T) {
codec := Codec{}
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v := map[string]any{}
err := codec.Decode([]byte(`invalid data`), v)
require.Error(t, err)
t.Logf("decoding failed as expected: %s", err)
})
}