spf13--viper/viper_test.go

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// Copyright © 2014 Steve Francia <spf@spf13.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package viper
import (
"bytes"
"testing"
"github.com/stretchr/testify/assert"
)
var yamlExample = []byte(`Hacker: true
name: steve
hobbies:
- skateboarding
- snowboarding
- go
clothing:
jacket: leather
trousers: denim
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age: 35`)
var tomlExample = []byte(`
title = "TOML Example"
[owner]
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?`)
var jsonExample = []byte(`{
"id": "0001",
"type": "donut",
"name": "Cake",
"ppu": 0.55,
"batters": {
"batter": [
{ "type": "Regular" },
{ "type": "Chocolate" },
{ "type": "Blueberry" },
{ "type": "Devil's Food" }
]
}
}`)
func TestBasics(t *testing.T) {
SetConfigFile("/tmp/config.yaml")
assert.Equal(t, "/tmp/config.yaml", getConfigFile())
}
func TestDefault(t *testing.T) {
SetDefault("age", 45)
assert.Equal(t, 45, Get("age"))
}
func TestMarshalling(t *testing.T) {
SetConfigType("yaml")
r := bytes.NewReader(yamlExample)
MarshallReader(r)
assert.True(t, InConfig("name"))
assert.False(t, InConfig("state"))
assert.Equal(t, "steve", Get("name"))
assert.Equal(t, []interface{}{"skateboarding", "snowboarding", "go"}, Get("hobbies"))
assert.Equal(t, map[interface{}]interface{}{"jacket": "leather", "trousers": "denim"}, Get("clothing"))
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assert.Equal(t, 35, Get("age"))
}
func TestOverrides(t *testing.T) {
Set("age", 40)
assert.Equal(t, 40, Get("age"))
}
func TestDefaultPost(t *testing.T) {
assert.NotEqual(t, "NYC", Get("state"))
SetDefault("state", "NYC")
assert.Equal(t, "NYC", Get("state"))
}
func TestAliases(t *testing.T) {
RegisterAlias("years", "age")
assert.Equal(t, 40, Get("years"))
Set("years", 45)
assert.Equal(t, 45, Get("age"))
}
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func TestYML(t *testing.T) {
Reset()
SetConfigType("yml")
r := bytes.NewReader(yamlExample)
MarshallReader(r)
assert.Equal(t, "steve", Get("name"))
}
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func TestJSON(t *testing.T) {
SetConfigType("json")
r := bytes.NewReader(jsonExample)
MarshallReader(r)
assert.Equal(t, "0001", Get("id"))
}
func TestTOML(t *testing.T) {
SetConfigType("toml")
r := bytes.NewReader(tomlExample)
MarshallReader(r)
assert.Equal(t, "TOML Example", Get("title"))
}
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func TestCaseInSensitive(t *testing.T) {
assert.Equal(t, true, Get("hacker"))
Set("Title", "Checking Case")
assert.Equal(t, "Checking Case", Get("tItle"))
}
func TestAliasesOfAliases(t *testing.T) {
RegisterAlias("Foo", "Bar")
RegisterAlias("Bar", "Title")
assert.Equal(t, "Checking Case", Get("FOO"))
}
func TestRecursiveAliases(t *testing.T) {
RegisterAlias("Baz", "Roo")
RegisterAlias("Roo", "baz")
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}
func TestIntoStruct(t *testing.T) {
SetDefault("port", 1313)
Set("name", "Steve")
type config struct {
Port int
Name string
}
var C config
err := GetAllIntoStruct(&C)
if err != nil {
t.Fatalf("unable to decode into struct, %v", err)
}
assert.Equal(t, &C, &config{Name: "Steve", Port: 1313})
Set("port", 1234)
err = GetAllIntoStruct(&C)
if err != nil {
t.Fatalf("unable to decode into struct, %v", err)
}
assert.Equal(t, &C, &config{Name: "Steve", Port: 1234})
}