mirror of
https://github.com/spf13/viper
synced 2025-04-28 16:27:17 +00:00
e3bc06f20c
This patch refactors the IsSet function to examine the keys in order to see if a key is set instead of simply checking if a value is nil. This change is necessary due to the fact that default values via flag bindings will result in the old logic always being true for the IsSet function due to a type's default value such as 0 for an integer or an empty string for a string. While a type's default value may be preferable when getting the value for a key, it results in a false positive when determining if a key is actually set. This change enables users to detect whether a key is set by only returning a flag's value if it has changed.
665 lines
15 KiB
Go
665 lines
15 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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"fmt"
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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/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 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 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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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("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 initYAML() {
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Reset()
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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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}
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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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// 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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assert.Equal(t, "/tmp/config.yaml", v.getConfigFile())
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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 TestUnmarshalling(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[interface{}]interface{}{"jacket": "leather", "trousers": "denim", "pants": map[interface{}]interface{}{"size": "large"}}, Get("clothing"))
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assert.Equal(t, 35, Get("age"))
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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 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 TestSetEnvReplacer(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", "name", "beard", "ppu", "batters", "hobbies", "clothing", "age", "hacker", "id", "type", "eyes", "p_id", "p_ppu", "p_batters.batter.type", "p_type", "p_name"}
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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[interface{}]interface{}{"trousers": "denim", "jacket": "leather", "pants": map[interface{}]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.batter.type": "Regular", "p_type": "donut"}
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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 TestCaseInSensitive(t *testing.T) {
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assert.Equal(t, true, Get("hacker"))
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Set("Title", "Checking Case")
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assert.Equal(t, "Checking Case", Get("tItle"))
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}
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func TestAliasesOfAliases(t *testing.T) {
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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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type config struct {
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Port int
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Name string
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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, &C, &config{Name: "Steve", Port: 1313})
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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, &C, &config{Name: "Steve", Port: 1234})
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}
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func TestBindPFlags(t *testing.T) {
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flagSet := pflag.NewFlagSet("test", pflag.ContinueOnError)
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var testValues = map[string]*string{
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"host": nil,
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"port": nil,
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"endpoint": nil,
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}
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var mutatedTestValues = map[string]string{
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"host": "localhost",
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"port": "6060",
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"endpoint": "/public",
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}
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for name, _ := range testValues {
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testValues[name] = flagSet.String(name, "", "test")
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}
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err := BindPFlags(flagSet)
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if err != nil {
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t.Fatalf("error binding flag set, %v", err)
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}
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flagSet.VisitAll(func(flag *pflag.Flag) {
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flag.Value.Set(mutatedTestValues[flag.Name])
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flag.Changed = true
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})
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for name, expected := range mutatedTestValues {
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assert.Equal(t, Get(name), expected)
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}
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}
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func TestBindPFlag(t *testing.T) {
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var testString = "testing"
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var testValue = newStringValue(testString, &testString)
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flag := &pflag.Flag{
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Name: "testflag",
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Value: testValue,
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Changed: false,
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}
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BindPFlag("testvalue", flag)
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assert.Equal(t, testString, Get("testvalue"))
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flag.Value.Set("testing_mutate")
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flag.Changed = true //hack for pflag usage
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assert.Equal(t, "testing_mutate", Get("testvalue"))
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}
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func TestBoundCaseSensitivity(t *testing.T) {
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assert.Equal(t, "brown", Get("eyes"))
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BindEnv("eYEs", "TURTLE_EYES")
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os.Setenv("TURTLE_EYES", "blue")
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assert.Equal(t, "blue", Get("eyes"))
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var testString = "green"
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var testValue = newStringValue(testString, &testString)
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flag := &pflag.Flag{
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Name: "eyeballs",
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Value: testValue,
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Changed: true,
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}
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BindPFlag("eYEs", flag)
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assert.Equal(t, "green", Get("eyes"))
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}
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func TestSizeInBytes(t *testing.T) {
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input := map[string]uint{
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"": 0,
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"b": 0,
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"12 bytes": 0,
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"200000000000gb": 0,
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"12 b": 12,
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"43 MB": 43 * (1 << 20),
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"10mb": 10 * (1 << 20),
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"1gb": 1 << 30,
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}
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for str, expected := range input {
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assert.Equal(t, expected, parseSizeInBytes(str), str)
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}
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}
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func TestFindsNestedKeys(t *testing.T) {
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initConfigs()
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dob, _ := time.Parse(time.RFC3339, "1979-05-27T07:32:00Z")
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Set("super", map[string]interface{}{
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"deep": map[string]interface{}{
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"nested": "value",
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},
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})
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expected := map[string]interface{}{
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"super": map[string]interface{}{
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"deep": map[string]interface{}{
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"nested": "value",
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},
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},
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"super.deep": map[string]interface{}{
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"nested": "value",
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},
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"super.deep.nested": "value",
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"owner.organization": "MongoDB",
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"batters.batter": []interface{}{
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map[string]interface{}{
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"type": "Regular",
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},
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map[string]interface{}{
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"type": "Chocolate",
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},
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map[string]interface{}{
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"type": "Blueberry",
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},
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map[string]interface{}{
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"type": "Devil's Food",
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},
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},
|
|
"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[interface{}]interface{}{
|
|
"jacket": "leather",
|
|
"trousers": "denim",
|
|
"pants": map[interface{}]interface{}{
|
|
"size": "large",
|
|
},
|
|
},
|
|
"clothing.jacket": "leather",
|
|
"clothing.pants.size": "large",
|
|
"clothing.trousers": "denim",
|
|
"owner.dob": dob,
|
|
"beard": true,
|
|
}
|
|
|
|
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[interface{}]interface{}{"jacket": "leather", "trousers": "denim", "pants": map[interface{}]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(UnsupportedConfigError("")), 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`))
|
|
}
|