1445 lines
31 KiB
Go
1445 lines
31 KiB
Go
// Copyright © 2014 Steve Francia <spf@spf13.com>.
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//
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// Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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package viper
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path"
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"reflect"
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"sort"
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"strings"
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"testing"
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"time"
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"github.com/mitchellh/mapstructure"
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"github.com/spf13/afero"
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"github.com/spf13/cast"
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"github.com/spf13/pflag"
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"github.com/stretchr/testify/assert"
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)
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var yamlExample = []byte(`Hacker: true
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name: steve
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hobbies:
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- skateboarding
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- snowboarding
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- go
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clothing:
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jacket: leather
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trousers: denim
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pants:
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size: large
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age: 35
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eyes : brown
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beard: true
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`)
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var yamlExampleWithExtras = []byte(`Existing: true
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Bogus: true
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`)
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type testUnmarshalExtra struct {
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Existing bool
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}
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var tomlExample = []byte(`
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title = "TOML Example"
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[owner]
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organization = "MongoDB"
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Bio = "MongoDB Chief Developer Advocate & Hacker at Large"
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dob = 1979-05-27T07:32:00Z # First class dates? Why not?`)
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var jsonExample = []byte(`{
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"id": "0001",
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"type": "donut",
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"name": "Cake",
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"ppu": 0.55,
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"batters": {
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"batter": [
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{ "type": "Regular" },
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{ "type": "Chocolate" },
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{ "type": "Blueberry" },
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{ "type": "Devil's Food" }
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]
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}
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}`)
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var hclExample = []byte(`
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id = "0001"
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type = "donut"
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name = "Cake"
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ppu = 0.55
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foos {
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foo {
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key = 1
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}
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foo {
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key = 2
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}
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foo {
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key = 3
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}
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foo {
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key = 4
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}
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}`)
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var propertiesExample = []byte(`
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p_id: 0001
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p_type: donut
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p_name: Cake
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p_ppu: 0.55
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p_batters.batter.type: Regular
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`)
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var remoteExample = []byte(`{
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"id":"0002",
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"type":"cronut",
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"newkey":"remote"
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}`)
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func initConfigs() {
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Reset()
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var r io.Reader
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SetConfigType("yaml")
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r = bytes.NewReader(yamlExample)
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unmarshalReader(r, v.config)
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SetConfigType("json")
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r = bytes.NewReader(jsonExample)
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unmarshalReader(r, v.config)
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SetConfigType("hcl")
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r = bytes.NewReader(hclExample)
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unmarshalReader(r, v.config)
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SetConfigType("properties")
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r = bytes.NewReader(propertiesExample)
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unmarshalReader(r, v.config)
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SetConfigType("toml")
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r = bytes.NewReader(tomlExample)
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unmarshalReader(r, v.config)
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SetConfigType("json")
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remote := bytes.NewReader(remoteExample)
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unmarshalReader(remote, v.kvstore)
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}
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func initConfig(typ, config string) {
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Reset()
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SetConfigType(typ)
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r := strings.NewReader(config)
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if err := unmarshalReader(r, v.config); err != nil {
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panic(err)
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}
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}
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func initYAML() {
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initConfig("yaml", string(yamlExample))
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}
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func initJSON() {
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Reset()
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SetConfigType("json")
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r := bytes.NewReader(jsonExample)
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unmarshalReader(r, v.config)
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}
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func initProperties() {
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Reset()
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SetConfigType("properties")
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r := bytes.NewReader(propertiesExample)
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unmarshalReader(r, v.config)
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}
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func initTOML() {
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Reset()
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SetConfigType("toml")
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r := bytes.NewReader(tomlExample)
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unmarshalReader(r, v.config)
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}
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func initHcl() {
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Reset()
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SetConfigType("hcl")
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r := bytes.NewReader(hclExample)
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unmarshalReader(r, v.config)
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}
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// make directories for testing
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func initDirs(t *testing.T) (string, string, func()) {
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var (
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testDirs = []string{`a a`, `b`, `c\c`, `D_`}
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config = `improbable`
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)
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root, err := ioutil.TempDir("", "")
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cleanup := true
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defer func() {
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if cleanup {
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os.Chdir("..")
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os.RemoveAll(root)
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}
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}()
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assert.Nil(t, err)
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err = os.Chdir(root)
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assert.Nil(t, err)
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for _, dir := range testDirs {
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err = os.Mkdir(dir, 0750)
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assert.Nil(t, err)
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err = ioutil.WriteFile(
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path.Join(dir, config+".toml"),
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[]byte("key = \"value is "+dir+"\"\n"),
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0640)
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assert.Nil(t, err)
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}
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cleanup = false
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return root, config, func() {
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os.Chdir("..")
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os.RemoveAll(root)
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}
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}
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//stubs for PFlag Values
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type stringValue string
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func newStringValue(val string, p *string) *stringValue {
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*p = val
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return (*stringValue)(p)
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}
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func (s *stringValue) Set(val string) error {
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*s = stringValue(val)
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return nil
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}
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func (s *stringValue) Type() string {
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return "string"
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}
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func (s *stringValue) String() string {
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return fmt.Sprintf("%s", *s)
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}
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func TestBasics(t *testing.T) {
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SetConfigFile("/tmp/config.yaml")
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filename, err := v.getConfigFile()
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assert.Equal(t, "/tmp/config.yaml", filename)
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assert.NoError(t, err)
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}
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func TestDefault(t *testing.T) {
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SetDefault("age", 45)
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assert.Equal(t, 45, Get("age"))
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SetDefault("clothing.jacket", "slacks")
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assert.Equal(t, "slacks", Get("clothing.jacket"))
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SetConfigType("yaml")
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err := ReadConfig(bytes.NewBuffer(yamlExample))
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assert.NoError(t, err)
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assert.Equal(t, "leather", Get("clothing.jacket"))
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}
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func TestUnmarshaling(t *testing.T) {
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SetConfigType("yaml")
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r := bytes.NewReader(yamlExample)
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unmarshalReader(r, v.config)
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assert.True(t, InConfig("name"))
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assert.False(t, InConfig("state"))
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assert.Equal(t, "steve", Get("name"))
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assert.Equal(t, []interface{}{"skateboarding", "snowboarding", "go"}, Get("hobbies"))
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assert.Equal(t, map[string]interface{}{"jacket": "leather", "trousers": "denim", "pants": map[string]interface{}{"size": "large"}}, Get("clothing"))
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assert.Equal(t, 35, Get("age"))
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}
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func TestUnmarshalExact(t *testing.T) {
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vip := New()
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target := &testUnmarshalExtra{}
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vip.SetConfigType("yaml")
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r := bytes.NewReader(yamlExampleWithExtras)
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vip.ReadConfig(r)
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err := vip.UnmarshalExact(target)
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if err == nil {
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t.Fatal("UnmarshalExact should error when populating a struct from a conf that contains unused fields")
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}
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}
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func TestOverrides(t *testing.T) {
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Set("age", 40)
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assert.Equal(t, 40, Get("age"))
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}
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func TestDefaultPost(t *testing.T) {
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assert.NotEqual(t, "NYC", Get("state"))
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SetDefault("state", "NYC")
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assert.Equal(t, "NYC", Get("state"))
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}
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func TestAliases(t *testing.T) {
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RegisterAlias("years", "age")
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assert.Equal(t, 40, Get("years"))
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Set("years", 45)
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assert.Equal(t, 45, Get("age"))
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}
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func TestAliasInConfigFile(t *testing.T) {
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// the config file specifies "beard". If we make this an alias for
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// "hasbeard", we still want the old config file to work with beard.
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RegisterAlias("beard", "hasbeard")
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assert.Equal(t, true, Get("hasbeard"))
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Set("hasbeard", false)
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assert.Equal(t, false, Get("beard"))
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}
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func TestYML(t *testing.T) {
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initYAML()
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assert.Equal(t, "steve", Get("name"))
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}
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func TestJSON(t *testing.T) {
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initJSON()
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assert.Equal(t, "0001", Get("id"))
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}
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func TestProperties(t *testing.T) {
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initProperties()
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assert.Equal(t, "0001", Get("p_id"))
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}
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func TestTOML(t *testing.T) {
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initTOML()
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assert.Equal(t, "TOML Example", Get("title"))
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}
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func TestHCL(t *testing.T) {
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initHcl()
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assert.Equal(t, "0001", Get("id"))
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assert.Equal(t, 0.55, Get("ppu"))
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assert.Equal(t, "donut", Get("type"))
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assert.Equal(t, "Cake", Get("name"))
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Set("id", "0002")
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assert.Equal(t, "0002", Get("id"))
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assert.NotEqual(t, "cronut", Get("type"))
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}
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func TestRemotePrecedence(t *testing.T) {
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initJSON()
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remote := bytes.NewReader(remoteExample)
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assert.Equal(t, "0001", Get("id"))
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unmarshalReader(remote, v.kvstore)
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assert.Equal(t, "0001", Get("id"))
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assert.NotEqual(t, "cronut", Get("type"))
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assert.Equal(t, "remote", Get("newkey"))
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Set("newkey", "newvalue")
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assert.NotEqual(t, "remote", Get("newkey"))
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assert.Equal(t, "newvalue", Get("newkey"))
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Set("newkey", "remote")
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}
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func TestEnv(t *testing.T) {
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initJSON()
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BindEnv("id")
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BindEnv("f", "FOOD")
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os.Setenv("ID", "13")
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os.Setenv("FOOD", "apple")
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os.Setenv("NAME", "crunk")
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assert.Equal(t, "13", Get("id"))
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assert.Equal(t, "apple", Get("f"))
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assert.Equal(t, "Cake", Get("name"))
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AutomaticEnv()
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assert.Equal(t, "crunk", Get("name"))
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}
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func TestEnvPrefix(t *testing.T) {
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initJSON()
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SetEnvPrefix("foo") // will be uppercased automatically
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BindEnv("id")
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BindEnv("f", "FOOD") // not using prefix
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os.Setenv("FOO_ID", "13")
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os.Setenv("FOOD", "apple")
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os.Setenv("FOO_NAME", "crunk")
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assert.Equal(t, "13", Get("id"))
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assert.Equal(t, "apple", Get("f"))
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assert.Equal(t, "Cake", Get("name"))
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AutomaticEnv()
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assert.Equal(t, "crunk", Get("name"))
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}
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func TestAutoEnv(t *testing.T) {
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Reset()
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AutomaticEnv()
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os.Setenv("FOO_BAR", "13")
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assert.Equal(t, "13", Get("foo_bar"))
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}
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func TestAutoEnvWithPrefix(t *testing.T) {
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Reset()
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AutomaticEnv()
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SetEnvPrefix("Baz")
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os.Setenv("BAZ_BAR", "13")
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assert.Equal(t, "13", Get("bar"))
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}
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func TestSetEnvKeyReplacer(t *testing.T) {
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Reset()
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AutomaticEnv()
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os.Setenv("REFRESH_INTERVAL", "30s")
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replacer := strings.NewReplacer("-", "_")
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SetEnvKeyReplacer(replacer)
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assert.Equal(t, "30s", Get("refresh-interval"))
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}
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func TestAllKeys(t *testing.T) {
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initConfigs()
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ks := sort.StringSlice{"title", "newkey", "owner.organization", "owner.dob", "owner.bio", "name", "beard", "ppu", "batters.batter", "hobbies", "clothing.jacket", "clothing.trousers", "clothing.pants.size", "age", "hacker", "id", "type", "eyes", "p_id", "p_ppu", "p_batters.batter.type", "p_type", "p_name", "foos"}
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dob, _ := time.Parse(time.RFC3339, "1979-05-27T07:32:00Z")
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all := map[string]interface{}{"owner": map[string]interface{}{"organization": "MongoDB", "bio": "MongoDB Chief Developer Advocate & Hacker at Large", "dob": dob}, "title": "TOML Example", "ppu": 0.55, "eyes": "brown", "clothing": map[string]interface{}{"trousers": "denim", "jacket": "leather", "pants": map[string]interface{}{"size": "large"}}, "id": "0001", "batters": map[string]interface{}{"batter": []interface{}{map[string]interface{}{"type": "Regular"}, map[string]interface{}{"type": "Chocolate"}, map[string]interface{}{"type": "Blueberry"}, map[string]interface{}{"type": "Devil's Food"}}}, "hacker": true, "beard": true, "hobbies": []interface{}{"skateboarding", "snowboarding", "go"}, "age": 35, "type": "donut", "newkey": "remote", "name": "Cake", "p_id": "0001", "p_ppu": "0.55", "p_name": "Cake", "p_batters": map[string]interface{}{"batter": map[string]interface{}{"type": "Regular"}}, "p_type": "donut", "foos": []map[string]interface{}{map[string]interface{}{"foo": []map[string]interface{}{map[string]interface{}{"key": 1}, map[string]interface{}{"key": 2}, map[string]interface{}{"key": 3}, map[string]interface{}{"key": 4}}}}}
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var allkeys sort.StringSlice
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allkeys = AllKeys()
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allkeys.Sort()
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ks.Sort()
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assert.Equal(t, ks, allkeys)
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assert.Equal(t, all, AllSettings())
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}
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func TestAllKeysWithEnv(t *testing.T) {
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v := New()
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// bind and define environment variables (including a nested one)
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v.BindEnv("id")
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v.BindEnv("foo.bar")
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v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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os.Setenv("ID", "13")
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os.Setenv("FOO_BAR", "baz")
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expectedKeys := sort.StringSlice{"id", "foo.bar"}
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expectedKeys.Sort()
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keys := sort.StringSlice(v.AllKeys())
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keys.Sort()
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assert.Equal(t, expectedKeys, keys)
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}
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func TestAliasesOfAliases(t *testing.T) {
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Set("Title", "Checking Case")
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RegisterAlias("Foo", "Bar")
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RegisterAlias("Bar", "Title")
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assert.Equal(t, "Checking Case", Get("FOO"))
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}
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func TestRecursiveAliases(t *testing.T) {
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RegisterAlias("Baz", "Roo")
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RegisterAlias("Roo", "baz")
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}
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func TestUnmarshal(t *testing.T) {
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SetDefault("port", 1313)
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Set("name", "Steve")
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Set("duration", "1s1ms")
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type config struct {
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Port int
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Name string
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Duration time.Duration
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}
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var C config
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err := Unmarshal(&C)
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if err != nil {
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t.Fatalf("unable to decode into struct, %v", err)
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}
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assert.Equal(t, &config{Name: "Steve", Port: 1313, Duration: time.Second + time.Millisecond}, &C)
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Set("port", 1234)
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err = Unmarshal(&C)
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if err != nil {
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t.Fatalf("unable to decode into struct, %v", err)
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}
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assert.Equal(t, &config{Name: "Steve", Port: 1234, Duration: time.Second + time.Millisecond}, &C)
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}
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func TestUnmarshalWithDecoderOptions(t *testing.T) {
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Set("credentials", "{\"foo\":\"bar\"}")
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opt := DecodeHook(mapstructure.ComposeDecodeHookFunc(
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mapstructure.StringToTimeDurationHookFunc(),
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mapstructure.StringToSliceHookFunc(","),
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// Custom Decode Hook Function
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func(rf reflect.Kind, rt reflect.Kind, data interface{}) (interface{}, error) {
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if rf != reflect.String || rt != reflect.Map {
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return data, nil
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}
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m := map[string]string{}
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raw := data.(string)
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if raw == "" {
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return m, nil
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}
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return m, json.Unmarshal([]byte(raw), &m)
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},
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))
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type config struct {
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Credentials map[string]string
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}
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var C config
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err := Unmarshal(&C, opt)
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if err != nil {
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t.Fatalf("unable to decode into struct, %v", err)
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}
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assert.Equal(t, &config{
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Credentials: map[string]string{"foo": "bar"},
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}, &C)
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}
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func TestBindPFlags(t *testing.T) {
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v := New() // create independent Viper object
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flagSet := pflag.NewFlagSet("test", pflag.ContinueOnError)
|
|
|
|
var testValues = map[string]*string{
|
|
"host": nil,
|
|
"port": nil,
|
|
"endpoint": nil,
|
|
}
|
|
|
|
var mutatedTestValues = map[string]string{
|
|
"host": "localhost",
|
|
"port": "6060",
|
|
"endpoint": "/public",
|
|
}
|
|
|
|
for name := range testValues {
|
|
testValues[name] = flagSet.String(name, "", "test")
|
|
}
|
|
|
|
err := v.BindPFlags(flagSet)
|
|
if err != nil {
|
|
t.Fatalf("error binding flag set, %v", err)
|
|
}
|
|
|
|
flagSet.VisitAll(func(flag *pflag.Flag) {
|
|
flag.Value.Set(mutatedTestValues[flag.Name])
|
|
flag.Changed = true
|
|
})
|
|
|
|
for name, expected := range mutatedTestValues {
|
|
assert.Equal(t, expected, v.Get(name))
|
|
}
|
|
|
|
}
|
|
|
|
func TestBindPFlagsStringSlice(t *testing.T) {
|
|
for _, testValue := range []struct {
|
|
Expected []string
|
|
Value string
|
|
}{
|
|
{[]string{}, ""},
|
|
{[]string{"jeden"}, "jeden"},
|
|
{[]string{"dwa", "trzy"}, "dwa,trzy"},
|
|
{[]string{"cztery", "piec , szesc"}, "cztery,\"piec , szesc\""}} {
|
|
|
|
for _, changed := range []bool{true, false} {
|
|
v := New() // create independent Viper object
|
|
flagSet := pflag.NewFlagSet("test", pflag.ContinueOnError)
|
|
flagSet.StringSlice("stringslice", testValue.Expected, "test")
|
|
flagSet.Visit(func(f *pflag.Flag) {
|
|
if len(testValue.Value) > 0 {
|
|
f.Value.Set(testValue.Value)
|
|
f.Changed = changed
|
|
}
|
|
})
|
|
|
|
err := v.BindPFlags(flagSet)
|
|
if err != nil {
|
|
t.Fatalf("error binding flag set, %v", err)
|
|
}
|
|
|
|
type TestStr struct {
|
|
StringSlice []string
|
|
}
|
|
val := &TestStr{}
|
|
if err := v.Unmarshal(val); err != nil {
|
|
t.Fatalf("%+#v cannot unmarshal: %s", testValue.Value, err)
|
|
}
|
|
assert.Equal(t, testValue.Expected, val.StringSlice)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestBindPFlag(t *testing.T) {
|
|
var testString = "testing"
|
|
var testValue = newStringValue(testString, &testString)
|
|
|
|
flag := &pflag.Flag{
|
|
Name: "testflag",
|
|
Value: testValue,
|
|
Changed: false,
|
|
}
|
|
|
|
BindPFlag("testvalue", flag)
|
|
|
|
assert.Equal(t, testString, Get("testvalue"))
|
|
|
|
flag.Value.Set("testing_mutate")
|
|
flag.Changed = true //hack for pflag usage
|
|
|
|
assert.Equal(t, "testing_mutate", Get("testvalue"))
|
|
|
|
}
|
|
|
|
func TestBoundCaseSensitivity(t *testing.T) {
|
|
assert.Equal(t, "brown", Get("eyes"))
|
|
|
|
BindEnv("eYEs", "TURTLE_EYES")
|
|
os.Setenv("TURTLE_EYES", "blue")
|
|
|
|
assert.Equal(t, "blue", Get("eyes"))
|
|
|
|
var testString = "green"
|
|
var testValue = newStringValue(testString, &testString)
|
|
|
|
flag := &pflag.Flag{
|
|
Name: "eyeballs",
|
|
Value: testValue,
|
|
Changed: true,
|
|
}
|
|
|
|
BindPFlag("eYEs", flag)
|
|
assert.Equal(t, "green", Get("eyes"))
|
|
|
|
}
|
|
|
|
func TestSizeInBytes(t *testing.T) {
|
|
input := map[string]uint{
|
|
"": 0,
|
|
"b": 0,
|
|
"12 bytes": 0,
|
|
"200000000000gb": 0,
|
|
"12 b": 12,
|
|
"43 MB": 43 * (1 << 20),
|
|
"10mb": 10 * (1 << 20),
|
|
"1gb": 1 << 30,
|
|
}
|
|
|
|
for str, expected := range input {
|
|
assert.Equal(t, expected, parseSizeInBytes(str), str)
|
|
}
|
|
}
|
|
|
|
func TestFindsNestedKeys(t *testing.T) {
|
|
initConfigs()
|
|
dob, _ := time.Parse(time.RFC3339, "1979-05-27T07:32:00Z")
|
|
|
|
Set("super", map[string]interface{}{
|
|
"deep": map[string]interface{}{
|
|
"nested": "value",
|
|
},
|
|
})
|
|
|
|
expected := map[string]interface{}{
|
|
"super": map[string]interface{}{
|
|
"deep": map[string]interface{}{
|
|
"nested": "value",
|
|
},
|
|
},
|
|
"super.deep": map[string]interface{}{
|
|
"nested": "value",
|
|
},
|
|
"super.deep.nested": "value",
|
|
"owner.organization": "MongoDB",
|
|
"batters.batter": []interface{}{
|
|
map[string]interface{}{
|
|
"type": "Regular",
|
|
},
|
|
map[string]interface{}{
|
|
"type": "Chocolate",
|
|
},
|
|
map[string]interface{}{
|
|
"type": "Blueberry",
|
|
},
|
|
map[string]interface{}{
|
|
"type": "Devil's Food",
|
|
},
|
|
},
|
|
"hobbies": []interface{}{
|
|
"skateboarding", "snowboarding", "go",
|
|
},
|
|
"title": "TOML Example",
|
|
"newkey": "remote",
|
|
"batters": map[string]interface{}{
|
|
"batter": []interface{}{
|
|
map[string]interface{}{
|
|
"type": "Regular",
|
|
},
|
|
map[string]interface{}{
|
|
"type": "Chocolate",
|
|
}, map[string]interface{}{
|
|
"type": "Blueberry",
|
|
}, map[string]interface{}{
|
|
"type": "Devil's Food",
|
|
},
|
|
},
|
|
},
|
|
"eyes": "brown",
|
|
"age": 35,
|
|
"owner": map[string]interface{}{
|
|
"organization": "MongoDB",
|
|
"bio": "MongoDB Chief Developer Advocate & Hacker at Large",
|
|
"dob": dob,
|
|
},
|
|
"owner.bio": "MongoDB Chief Developer Advocate & Hacker at Large",
|
|
"type": "donut",
|
|
"id": "0001",
|
|
"name": "Cake",
|
|
"hacker": true,
|
|
"ppu": 0.55,
|
|
"clothing": map[string]interface{}{
|
|
"jacket": "leather",
|
|
"trousers": "denim",
|
|
"pants": map[string]interface{}{
|
|
"size": "large",
|
|
},
|
|
},
|
|
"clothing.jacket": "leather",
|
|
"clothing.pants.size": "large",
|
|
"clothing.trousers": "denim",
|
|
"owner.dob": dob,
|
|
"beard": true,
|
|
"foos": []map[string]interface{}{
|
|
map[string]interface{}{
|
|
"foo": []map[string]interface{}{
|
|
map[string]interface{}{
|
|
"key": 1,
|
|
},
|
|
map[string]interface{}{
|
|
"key": 2,
|
|
},
|
|
map[string]interface{}{
|
|
"key": 3,
|
|
},
|
|
map[string]interface{}{
|
|
"key": 4,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for key, expectedValue := range expected {
|
|
|
|
assert.Equal(t, expectedValue, v.Get(key))
|
|
}
|
|
|
|
}
|
|
|
|
func TestReadBufConfig(t *testing.T) {
|
|
v := New()
|
|
v.SetConfigType("yaml")
|
|
v.ReadConfig(bytes.NewBuffer(yamlExample))
|
|
t.Log(v.AllKeys())
|
|
|
|
assert.True(t, v.InConfig("name"))
|
|
assert.False(t, v.InConfig("state"))
|
|
assert.Equal(t, "steve", v.Get("name"))
|
|
assert.Equal(t, []interface{}{"skateboarding", "snowboarding", "go"}, v.Get("hobbies"))
|
|
assert.Equal(t, map[string]interface{}{"jacket": "leather", "trousers": "denim", "pants": map[string]interface{}{"size": "large"}}, v.Get("clothing"))
|
|
assert.Equal(t, 35, v.Get("age"))
|
|
}
|
|
|
|
func TestIsSet(t *testing.T) {
|
|
v := New()
|
|
v.SetConfigType("yaml")
|
|
v.ReadConfig(bytes.NewBuffer(yamlExample))
|
|
assert.True(t, v.IsSet("clothing.jacket"))
|
|
assert.False(t, v.IsSet("clothing.jackets"))
|
|
assert.False(t, v.IsSet("helloworld"))
|
|
v.Set("helloworld", "fubar")
|
|
assert.True(t, v.IsSet("helloworld"))
|
|
}
|
|
|
|
func TestDirsSearch(t *testing.T) {
|
|
|
|
root, config, cleanup := initDirs(t)
|
|
defer cleanup()
|
|
|
|
v := New()
|
|
v.SetConfigName(config)
|
|
v.SetDefault(`key`, `default`)
|
|
|
|
entries, err := ioutil.ReadDir(root)
|
|
for _, e := range entries {
|
|
if e.IsDir() {
|
|
v.AddConfigPath(e.Name())
|
|
}
|
|
}
|
|
|
|
err = v.ReadInConfig()
|
|
assert.Nil(t, err)
|
|
|
|
assert.Equal(t, `value is `+path.Base(v.configPaths[0]), v.GetString(`key`))
|
|
}
|
|
|
|
func TestWrongDirsSearchNotFound(t *testing.T) {
|
|
|
|
_, config, cleanup := initDirs(t)
|
|
defer cleanup()
|
|
|
|
v := New()
|
|
v.SetConfigName(config)
|
|
v.SetDefault(`key`, `default`)
|
|
|
|
v.AddConfigPath(`whattayoutalkingbout`)
|
|
v.AddConfigPath(`thispathaintthere`)
|
|
|
|
err := v.ReadInConfig()
|
|
assert.Equal(t, reflect.TypeOf(ConfigFileNotFoundError{"", ""}), reflect.TypeOf(err))
|
|
|
|
// Even though config did not load and the error might have
|
|
// been ignored by the client, the default still loads
|
|
assert.Equal(t, `default`, v.GetString(`key`))
|
|
}
|
|
|
|
func TestWrongDirsSearchNotFoundForMerge(t *testing.T) {
|
|
|
|
_, config, cleanup := initDirs(t)
|
|
defer cleanup()
|
|
|
|
v := New()
|
|
v.SetConfigName(config)
|
|
v.SetDefault(`key`, `default`)
|
|
|
|
v.AddConfigPath(`whattayoutalkingbout`)
|
|
v.AddConfigPath(`thispathaintthere`)
|
|
|
|
err := v.MergeInConfig()
|
|
assert.Equal(t, reflect.TypeOf(ConfigFileNotFoundError{"", ""}), reflect.TypeOf(err))
|
|
|
|
// Even though config did not load and the error might have
|
|
// been ignored by the client, the default still loads
|
|
assert.Equal(t, `default`, v.GetString(`key`))
|
|
}
|
|
|
|
func TestSub(t *testing.T) {
|
|
v := New()
|
|
v.SetConfigType("yaml")
|
|
v.ReadConfig(bytes.NewBuffer(yamlExample))
|
|
|
|
subv := v.Sub("clothing")
|
|
assert.Equal(t, v.Get("clothing.pants.size"), subv.Get("pants.size"))
|
|
|
|
subv = v.Sub("clothing.pants")
|
|
assert.Equal(t, v.Get("clothing.pants.size"), subv.Get("size"))
|
|
|
|
subv = v.Sub("clothing.pants.size")
|
|
assert.Equal(t, (*Viper)(nil), subv)
|
|
|
|
subv = v.Sub("missing.key")
|
|
assert.Equal(t, (*Viper)(nil), subv)
|
|
}
|
|
|
|
var hclWriteExpected = []byte(`"foos" = {
|
|
"foo" = {
|
|
"key" = 1
|
|
}
|
|
|
|
"foo" = {
|
|
"key" = 2
|
|
}
|
|
|
|
"foo" = {
|
|
"key" = 3
|
|
}
|
|
|
|
"foo" = {
|
|
"key" = 4
|
|
}
|
|
}
|
|
|
|
"id" = "0001"
|
|
|
|
"name" = "Cake"
|
|
|
|
"ppu" = 0.55
|
|
|
|
"type" = "donut"`)
|
|
|
|
func TestWriteConfigHCL(t *testing.T) {
|
|
v := New()
|
|
fs := afero.NewMemMapFs()
|
|
v.SetFs(fs)
|
|
v.SetConfigName("c")
|
|
v.SetConfigType("hcl")
|
|
err := v.ReadConfig(bytes.NewBuffer(hclExample))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := v.WriteConfigAs("c.hcl"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
read, err := afero.ReadFile(fs, "c.hcl")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, hclWriteExpected, read)
|
|
}
|
|
|
|
var jsonWriteExpected = []byte(`{
|
|
"batters": {
|
|
"batter": [
|
|
{
|
|
"type": "Regular"
|
|
},
|
|
{
|
|
"type": "Chocolate"
|
|
},
|
|
{
|
|
"type": "Blueberry"
|
|
},
|
|
{
|
|
"type": "Devil's Food"
|
|
}
|
|
]
|
|
},
|
|
"id": "0001",
|
|
"name": "Cake",
|
|
"ppu": 0.55,
|
|
"type": "donut"
|
|
}`)
|
|
|
|
func TestWriteConfigJson(t *testing.T) {
|
|
v := New()
|
|
fs := afero.NewMemMapFs()
|
|
v.SetFs(fs)
|
|
v.SetConfigName("c")
|
|
v.SetConfigType("json")
|
|
err := v.ReadConfig(bytes.NewBuffer(jsonExample))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := v.WriteConfigAs("c.json"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
read, err := afero.ReadFile(fs, "c.json")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, jsonWriteExpected, read)
|
|
}
|
|
|
|
var propertiesWriteExpected = []byte(`p_id = 0001
|
|
p_type = donut
|
|
p_name = Cake
|
|
p_ppu = 0.55
|
|
p_batters.batter.type = Regular
|
|
`)
|
|
|
|
func TestWriteConfigProperties(t *testing.T) {
|
|
v := New()
|
|
fs := afero.NewMemMapFs()
|
|
v.SetFs(fs)
|
|
v.SetConfigName("c")
|
|
v.SetConfigType("properties")
|
|
err := v.ReadConfig(bytes.NewBuffer(propertiesExample))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := v.WriteConfigAs("c.properties"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
read, err := afero.ReadFile(fs, "c.properties")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, propertiesWriteExpected, read)
|
|
}
|
|
|
|
func TestWriteConfigTOML(t *testing.T) {
|
|
fs := afero.NewMemMapFs()
|
|
v := New()
|
|
v.SetFs(fs)
|
|
v.SetConfigName("c")
|
|
v.SetConfigType("toml")
|
|
err := v.ReadConfig(bytes.NewBuffer(tomlExample))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := v.WriteConfigAs("c.toml"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// The TOML String method does not order the contents.
|
|
// Therefore, we must read the generated file and compare the data.
|
|
v2 := New()
|
|
v2.SetFs(fs)
|
|
v2.SetConfigName("c")
|
|
v2.SetConfigType("toml")
|
|
v2.SetConfigFile("c.toml")
|
|
err = v2.ReadInConfig()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
assert.Equal(t, v.GetString("title"), v2.GetString("title"))
|
|
assert.Equal(t, v.GetString("owner.bio"), v2.GetString("owner.bio"))
|
|
assert.Equal(t, v.GetString("owner.dob"), v2.GetString("owner.dob"))
|
|
assert.Equal(t, v.GetString("owner.organization"), v2.GetString("owner.organization"))
|
|
}
|
|
|
|
var yamlWriteExpected = []byte(`age: 35
|
|
beard: true
|
|
clothing:
|
|
jacket: leather
|
|
pants:
|
|
size: large
|
|
trousers: denim
|
|
eyes: brown
|
|
hacker: true
|
|
hobbies:
|
|
- skateboarding
|
|
- snowboarding
|
|
- go
|
|
name: steve
|
|
`)
|
|
|
|
func TestWriteConfigYAML(t *testing.T) {
|
|
v := New()
|
|
fs := afero.NewMemMapFs()
|
|
v.SetFs(fs)
|
|
v.SetConfigName("c")
|
|
v.SetConfigType("yaml")
|
|
err := v.ReadConfig(bytes.NewBuffer(yamlExample))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := v.WriteConfigAs("c.yaml"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
read, err := afero.ReadFile(fs, "c.yaml")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
assert.Equal(t, yamlWriteExpected, read)
|
|
}
|
|
|
|
var yamlMergeExampleTgt = []byte(`
|
|
hello:
|
|
pop: 37890
|
|
lagrenum: 765432101234567
|
|
world:
|
|
- us
|
|
- uk
|
|
- fr
|
|
- de
|
|
`)
|
|
|
|
var yamlMergeExampleSrc = []byte(`
|
|
hello:
|
|
pop: 45000
|
|
lagrenum: 7654321001234567
|
|
universe:
|
|
- mw
|
|
- ad
|
|
fu: bar
|
|
`)
|
|
|
|
func TestMergeConfig(t *testing.T) {
|
|
v := New()
|
|
v.SetConfigType("yml")
|
|
if err := v.ReadConfig(bytes.NewBuffer(yamlMergeExampleTgt)); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if pop := v.GetInt("hello.pop"); pop != 37890 {
|
|
t.Fatalf("pop != 37890, = %d", pop)
|
|
}
|
|
|
|
if pop := v.GetInt32("hello.pop"); pop != int32(37890) {
|
|
t.Fatalf("pop != 37890, = %d", pop)
|
|
}
|
|
|
|
if pop := v.GetInt64("hello.lagrenum"); pop != int64(765432101234567) {
|
|
t.Fatalf("int64 lagrenum != 765432101234567, = %d", pop)
|
|
}
|
|
|
|
if world := v.GetStringSlice("hello.world"); len(world) != 4 {
|
|
t.Fatalf("len(world) != 4, = %d", len(world))
|
|
}
|
|
|
|
if fu := v.GetString("fu"); fu != "" {
|
|
t.Fatalf("fu != \"\", = %s", fu)
|
|
}
|
|
|
|
if err := v.MergeConfig(bytes.NewBuffer(yamlMergeExampleSrc)); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if pop := v.GetInt("hello.pop"); pop != 45000 {
|
|
t.Fatalf("pop != 45000, = %d", pop)
|
|
}
|
|
|
|
if pop := v.GetInt32("hello.pop"); pop != int32(45000) {
|
|
t.Fatalf("pop != 45000, = %d", pop)
|
|
}
|
|
|
|
if pop := v.GetInt64("hello.lagrenum"); pop != int64(7654321001234567) {
|
|
t.Fatalf("int64 lagrenum != 7654321001234567, = %d", pop)
|
|
}
|
|
|
|
if world := v.GetStringSlice("hello.world"); len(world) != 4 {
|
|
t.Fatalf("len(world) != 4, = %d", len(world))
|
|
}
|
|
|
|
if universe := v.GetStringSlice("hello.universe"); len(universe) != 2 {
|
|
t.Fatalf("len(universe) != 2, = %d", len(universe))
|
|
}
|
|
|
|
if fu := v.GetString("fu"); fu != "bar" {
|
|
t.Fatalf("fu != \"bar\", = %s", fu)
|
|
}
|
|
}
|
|
|
|
func TestMergeConfigNoMerge(t *testing.T) {
|
|
v := New()
|
|
v.SetConfigType("yml")
|
|
if err := v.ReadConfig(bytes.NewBuffer(yamlMergeExampleTgt)); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if pop := v.GetInt("hello.pop"); pop != 37890 {
|
|
t.Fatalf("pop != 37890, = %d", pop)
|
|
}
|
|
|
|
if world := v.GetStringSlice("hello.world"); len(world) != 4 {
|
|
t.Fatalf("len(world) != 4, = %d", len(world))
|
|
}
|
|
|
|
if fu := v.GetString("fu"); fu != "" {
|
|
t.Fatalf("fu != \"\", = %s", fu)
|
|
}
|
|
|
|
if err := v.ReadConfig(bytes.NewBuffer(yamlMergeExampleSrc)); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if pop := v.GetInt("hello.pop"); pop != 45000 {
|
|
t.Fatalf("pop != 45000, = %d", pop)
|
|
}
|
|
|
|
if world := v.GetStringSlice("hello.world"); len(world) != 0 {
|
|
t.Fatalf("len(world) != 0, = %d", len(world))
|
|
}
|
|
|
|
if universe := v.GetStringSlice("hello.universe"); len(universe) != 2 {
|
|
t.Fatalf("len(universe) != 2, = %d", len(universe))
|
|
}
|
|
|
|
if fu := v.GetString("fu"); fu != "bar" {
|
|
t.Fatalf("fu != \"bar\", = %s", fu)
|
|
}
|
|
}
|
|
|
|
func TestUnmarshalingWithAliases(t *testing.T) {
|
|
v := New()
|
|
v.SetDefault("ID", 1)
|
|
v.Set("name", "Steve")
|
|
v.Set("lastname", "Owen")
|
|
|
|
v.RegisterAlias("UserID", "ID")
|
|
v.RegisterAlias("Firstname", "name")
|
|
v.RegisterAlias("Surname", "lastname")
|
|
|
|
type config struct {
|
|
ID int
|
|
FirstName string
|
|
Surname string
|
|
}
|
|
|
|
var C config
|
|
err := v.Unmarshal(&C)
|
|
if err != nil {
|
|
t.Fatalf("unable to decode into struct, %v", err)
|
|
}
|
|
|
|
assert.Equal(t, &config{ID: 1, FirstName: "Steve", Surname: "Owen"}, &C)
|
|
}
|
|
|
|
func TestSetConfigNameClearsFileCache(t *testing.T) {
|
|
SetConfigFile("/tmp/config.yaml")
|
|
SetConfigName("default")
|
|
f, err := v.getConfigFile()
|
|
if err == nil {
|
|
t.Fatalf("config file cache should have been cleared")
|
|
}
|
|
assert.Empty(t, f)
|
|
}
|
|
|
|
func TestShadowedNestedValue(t *testing.T) {
|
|
|
|
config := `name: steve
|
|
clothing:
|
|
jacket: leather
|
|
trousers: denim
|
|
pants:
|
|
size: large
|
|
`
|
|
initConfig("yaml", config)
|
|
|
|
assert.Equal(t, "steve", GetString("name"))
|
|
|
|
polyester := "polyester"
|
|
SetDefault("clothing.shirt", polyester)
|
|
SetDefault("clothing.jacket.price", 100)
|
|
|
|
assert.Equal(t, "leather", GetString("clothing.jacket"))
|
|
assert.Nil(t, Get("clothing.jacket.price"))
|
|
assert.Equal(t, polyester, GetString("clothing.shirt"))
|
|
|
|
clothingSettings := AllSettings()["clothing"].(map[string]interface{})
|
|
assert.Equal(t, "leather", clothingSettings["jacket"])
|
|
assert.Equal(t, polyester, clothingSettings["shirt"])
|
|
}
|
|
|
|
func TestDotParameter(t *testing.T) {
|
|
initJSON()
|
|
// shoud take precedence over batters defined in jsonExample
|
|
r := bytes.NewReader([]byte(`{ "batters.batter": [ { "type": "Small" } ] }`))
|
|
unmarshalReader(r, v.config)
|
|
|
|
actual := Get("batters.batter")
|
|
expected := []interface{}{map[string]interface{}{"type": "Small"}}
|
|
assert.Equal(t, expected, actual)
|
|
}
|
|
|
|
func TestCaseInsensitive(t *testing.T) {
|
|
for _, config := range []struct {
|
|
typ string
|
|
content string
|
|
}{
|
|
{"yaml", `
|
|
aBcD: 1
|
|
eF:
|
|
gH: 2
|
|
iJk: 3
|
|
Lm:
|
|
nO: 4
|
|
P:
|
|
Q: 5
|
|
R: 6
|
|
`},
|
|
{"json", `{
|
|
"aBcD": 1,
|
|
"eF": {
|
|
"iJk": 3,
|
|
"Lm": {
|
|
"P": {
|
|
"Q": 5,
|
|
"R": 6
|
|
},
|
|
"nO": 4
|
|
},
|
|
"gH": 2
|
|
}
|
|
}`},
|
|
{"toml", `aBcD = 1
|
|
[eF]
|
|
gH = 2
|
|
iJk = 3
|
|
[eF.Lm]
|
|
nO = 4
|
|
[eF.Lm.P]
|
|
Q = 5
|
|
R = 6
|
|
`},
|
|
} {
|
|
doTestCaseInsensitive(t, config.typ, config.content)
|
|
}
|
|
}
|
|
|
|
func TestCaseInsensitiveSet(t *testing.T) {
|
|
Reset()
|
|
m1 := map[string]interface{}{
|
|
"Foo": 32,
|
|
"Bar": map[interface{}]interface {
|
|
}{
|
|
"ABc": "A",
|
|
"cDE": "B"},
|
|
}
|
|
|
|
m2 := map[string]interface{}{
|
|
"Foo": 52,
|
|
"Bar": map[interface{}]interface {
|
|
}{
|
|
"bCd": "A",
|
|
"eFG": "B"},
|
|
}
|
|
|
|
Set("Given1", m1)
|
|
Set("Number1", 42)
|
|
|
|
SetDefault("Given2", m2)
|
|
SetDefault("Number2", 52)
|
|
|
|
// Verify SetDefault
|
|
if v := Get("number2"); v != 52 {
|
|
t.Fatalf("Expected 52 got %q", v)
|
|
}
|
|
|
|
if v := Get("given2.foo"); v != 52 {
|
|
t.Fatalf("Expected 52 got %q", v)
|
|
}
|
|
|
|
if v := Get("given2.bar.bcd"); v != "A" {
|
|
t.Fatalf("Expected A got %q", v)
|
|
}
|
|
|
|
if _, ok := m2["Foo"]; !ok {
|
|
t.Fatal("Input map changed")
|
|
}
|
|
|
|
// Verify Set
|
|
if v := Get("number1"); v != 42 {
|
|
t.Fatalf("Expected 42 got %q", v)
|
|
}
|
|
|
|
if v := Get("given1.foo"); v != 32 {
|
|
t.Fatalf("Expected 32 got %q", v)
|
|
}
|
|
|
|
if v := Get("given1.bar.abc"); v != "A" {
|
|
t.Fatalf("Expected A got %q", v)
|
|
}
|
|
|
|
if _, ok := m1["Foo"]; !ok {
|
|
t.Fatal("Input map changed")
|
|
}
|
|
}
|
|
|
|
func TestParseNested(t *testing.T) {
|
|
type duration struct {
|
|
Delay time.Duration
|
|
}
|
|
|
|
type item struct {
|
|
Name string
|
|
Delay time.Duration
|
|
Nested duration
|
|
}
|
|
|
|
config := `[[parent]]
|
|
delay="100ms"
|
|
[parent.nested]
|
|
delay="200ms"
|
|
`
|
|
initConfig("toml", config)
|
|
|
|
var items []item
|
|
err := v.UnmarshalKey("parent", &items)
|
|
if err != nil {
|
|
t.Fatalf("unable to decode into struct, %v", err)
|
|
}
|
|
|
|
assert.Equal(t, 1, len(items))
|
|
assert.Equal(t, 100*time.Millisecond, items[0].Delay)
|
|
assert.Equal(t, 200*time.Millisecond, items[0].Nested.Delay)
|
|
}
|
|
|
|
func doTestCaseInsensitive(t *testing.T, typ, config string) {
|
|
initConfig(typ, config)
|
|
Set("RfD", true)
|
|
assert.Equal(t, true, Get("rfd"))
|
|
assert.Equal(t, true, Get("rFD"))
|
|
assert.Equal(t, 1, cast.ToInt(Get("abcd")))
|
|
assert.Equal(t, 1, cast.ToInt(Get("Abcd")))
|
|
assert.Equal(t, 2, cast.ToInt(Get("ef.gh")))
|
|
assert.Equal(t, 3, cast.ToInt(Get("ef.ijk")))
|
|
assert.Equal(t, 4, cast.ToInt(Get("ef.lm.no")))
|
|
assert.Equal(t, 5, cast.ToInt(Get("ef.lm.p.q")))
|
|
|
|
}
|
|
|
|
func BenchmarkGetBool(b *testing.B) {
|
|
key := "BenchmarkGetBool"
|
|
v = New()
|
|
v.Set(key, true)
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
if !v.GetBool(key) {
|
|
b.Fatal("GetBool returned false")
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkGet(b *testing.B) {
|
|
key := "BenchmarkGet"
|
|
v = New()
|
|
v.Set(key, true)
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
if !v.Get(key).(bool) {
|
|
b.Fatal("Get returned false")
|
|
}
|
|
}
|
|
}
|
|
|
|
// This is the "perfect result" for the above.
|
|
func BenchmarkGetBoolFromMap(b *testing.B) {
|
|
m := make(map[string]bool)
|
|
key := "BenchmarkGetBool"
|
|
m[key] = true
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
if !m[key] {
|
|
b.Fatal("Map value was false")
|
|
}
|
|
}
|
|
}
|