distribution/configuration/parser_test.go

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package configuration
import (
"reflect"
"testing"
"github.com/stretchr/testify/require"
)
type localConfiguration struct {
Version Version `yaml:"version"`
Log *Log `yaml:"log"`
Notifications []Notif `yaml:"notifications,omitempty"`
}
type Log struct {
Formatter string `yaml:"formatter,omitempty"`
}
type Notif struct {
Name string `yaml:"name"`
}
var expectedConfig = localConfiguration{
Version: "0.1",
Log: &Log{
Formatter: "json",
},
Notifications: []Notif{
{Name: "foo"},
{Name: "bar"},
{Name: "car"},
},
}
const testConfig = `version: "0.1"
log:
formatter: "text"
notifications:
- name: "foo"
- name: "bar"
- name: "car"`
func TestParserOverwriteIninitializedPoiner(t *testing.T) {
config := localConfiguration{}
t.Setenv("REGISTRY_LOG_FORMATTER", "json")
p := NewParser("registry", []VersionedParseInfo{
{
Version: "0.1",
ParseAs: reflect.TypeOf(config),
ConversionFunc: func(c interface{}) (interface{}, error) {
return c, nil
},
},
})
err := p.Parse([]byte(testConfig), &config)
require.NoError(t, err)
require.Equal(t, expectedConfig, config)
}
const testConfig2 = `version: "0.1"
log:
formatter: "text"
notifications:
- name: "val1"
- name: "val2"
- name: "car"`
func TestParseOverwriteUnininitializedPoiner(t *testing.T) {
config := localConfiguration{}
t.Setenv("REGISTRY_LOG_FORMATTER", "json")
// override only first two notificationsvalues
// in the tetConfig: leave the last value unchanged.
t.Setenv("REGISTRY_NOTIFICATIONS_0_NAME", "foo")
t.Setenv("REGISTRY_NOTIFICATIONS_1_NAME", "bar")
p := NewParser("registry", []VersionedParseInfo{
{
Version: "0.1",
ParseAs: reflect.TypeOf(config),
ConversionFunc: func(c interface{}) (interface{}, error) {
return c, nil
},
},
})
err := p.Parse([]byte(testConfig2), &config)
require.NoError(t, err)
require.Equal(t, expectedConfig, config)
}