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|
package hcl
import (
"reflect"
"testing"
)
// original form of the data
const original = `# key-value pair
"key" = "value"
// list
"list" = ["item1", "item2", "item3"]
/* map */
"map" = {
"key" = "value"
}
/*
nested map
*/
"nested_map" "map" {
"key" = "value"
"list" = ["item1", "item2", "item3"]
}`
// 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"]
}`
// decoded form of the data
//
// in case of HCL it's slightly different from Viper's internal representation
// (eg. map is decoded into a list of maps)
var decoded = map[string]interface{}{
"key": "value",
"list": []interface{}{
"item1",
"item2",
"item3",
},
"map": []map[string]interface{}{
{
"key": "value",
},
},
"nested_map": []map[string]interface{}{
{
"map": []map[string]interface{}{
{
"key": "value",
"list": []interface{}{
"item1",
"item2",
"item3",
},
},
},
},
},
}
// Viper's internal representation
var data = map[string]interface{}{
"key": "value",
"list": []interface{}{
"item1",
"item2",
"item3",
},
"map": map[string]interface{}{
"key": "value",
},
"nested_map": map[string]interface{}{
"map": map[string]interface{}{
"key": "value",
"list": []interface{}{
"item1",
"item2",
"item3",
},
},
},
}
func TestCodec_Encode(t *testing.T) {
codec := Codec{}
b, err := codec.Encode(data)
if err != nil {
t.Fatal(err)
}
if encoded != string(b) {
t.Fatalf("decoded value does not match the expected one\nactual: %#v\nexpected: %#v", string(b), encoded)
}
}
func TestCodec_Decode(t *testing.T) {
t.Run("OK", func(t *testing.T) {
codec := Codec{}
v := map[string]interface{}{}
err := codec.Decode([]byte(original), v)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(decoded, v) {
t.Fatalf("decoded value does not match the expected one\nactual: %#v\nexpected: %#v", v, decoded)
}
})
t.Run("InvalidData", func(t *testing.T) {
codec := Codec{}
v := map[string]interface{}{}
err := codec.Decode([]byte(`invalid data`), v)
if err == nil {
t.Fatal("expected decoding to fail")
}
t.Logf("decoding failed as expected: %s", err)
})
}
|
