/
fakers.go
159 lines (143 loc) · 5.14 KB
/
fakers.go
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package fako
import (
"math/rand"
"reflect"
"time"
"github.com/icrowley/fake"
"github.com/markbates/inflect"
)
var customGenerators = map[string]func() string{}
var typeMapping = map[string]func() string{
"Brand": fake.Brand,
"Character": fake.Character,
"Characters": fake.Characters,
"City": fake.City,
"Color": fake.Color,
"Company": fake.Company,
"Continent": fake.Continent,
"Country": fake.Country,
"CreditCardType": fake.CreditCardType,
"Currency": fake.Currency,
"CurrencyCode": fake.CurrencyCode,
"Digits": fake.Digits,
"DomainName": fake.DomainName,
"DomainZone": fake.DomainZone,
"EmailAddress": fake.EmailAddress,
"EmailBody": fake.EmailBody,
"EmailSubject": fake.EmailSubject,
"FemaleFirstName": fake.FemaleFirstName,
"FemaleFullName": fake.FemaleFullName,
"FemaleFullNameWithPrefix": fake.FemaleFullNameWithPrefix,
"FemaleFullNameWithSuffix": fake.FemaleFullNameWithSuffix,
"FemaleLastName": fake.FemaleLastName,
"FemalePatronymic": fake.FemalePatronymic,
"FirstName": fake.FirstName,
"FullName": fake.FullName,
"FullNameWithPrefix": fake.FullNameWithPrefix,
"FullNameWithSuffix": fake.FullNameWithSuffix,
"Gender": fake.Gender,
"GenderAbbrev": fake.GenderAbbrev,
"HexColor": fake.HexColor,
"HexColorShort": fake.HexColorShort,
"IPv4": fake.IPv4,
"Industry": fake.Industry,
"JobTitle": fake.JobTitle,
"Language": fake.Language,
"LastName": fake.LastName,
"LatitudeDirection": fake.LatitudeDirection,
"LongitudeDirection": fake.LongitudeDirection,
"MaleFirstName": fake.MaleFirstName,
"MaleFullName": fake.MaleFullName,
"MaleFullNameWithPrefix": fake.MaleFullNameWithPrefix,
"MaleFullNameWithSuffix": fake.MaleFullNameWithSuffix,
"MaleLastName": fake.MaleLastName,
"MalePatronymic": fake.MalePatronymic,
"Model": fake.Model,
"Month": fake.Month,
"MonthShort": fake.MonthShort,
"Paragraph": fake.Paragraph,
"Paragraphs": fake.Paragraphs,
"Patronymic": fake.Patronymic,
"Phone": fake.Phone,
"Product": fake.Product,
"ProductName": fake.ProductName,
"Sentence": fake.Sentence,
"Sentences": fake.Sentences,
"SimplePassword": fake.SimplePassword,
"State": fake.State,
"StateAbbrev": fake.StateAbbrev,
"Street": fake.Street,
"StreetAddress": fake.StreetAddress,
"Title": fake.Title,
"TopLevelDomain": fake.TopLevelDomain,
"UserName": fake.UserName,
"WeekDay": fake.WeekDay,
"WeekDayShort": fake.WeekDayShort,
"Word": fake.Word,
"Words": fake.Words,
"Zip": fake.Zip,
}
// Register allows user to add his own data generators for special cases
// that we could not cover with the generators that fako includes by default.
func Register(identifier string, generator func() string) {
fakeType := inflect.Camelize(identifier)
customGenerators[fakeType] = generator
}
// Fuzz Fills passed interface with random data based on the struct field type,
// take a look at fuzzValueFor for details on supported data types.
func Fuzz(e interface{}) {
ty := reflect.TypeOf(e)
if ty.Kind() == reflect.Ptr {
ty = ty.Elem()
}
if ty.Kind() == reflect.Struct {
value := reflect.ValueOf(e).Elem()
for i := 0; i < ty.NumField(); i++ {
field := value.Field(i)
if field.CanSet() {
field.Set(fuzzValueFor(field.Kind()))
}
}
}
}
func allGenerators() map[string]func() string {
dst := typeMapping
for k, v := range customGenerators {
dst[k] = v
}
return dst
}
//findFakeFunctionFor returns a faker function for a fako identifier
func findFakeFunctionFor(fako string) func() string {
result := func() string { return "" }
for kind, function := range allGenerators() {
if fako == kind {
result = function
break
}
}
return result
}
// fuzzValueFor Generates random values for the following types:
// string, bool, int, int32, int64, float32, float64
func fuzzValueFor(kind reflect.Kind) reflect.Value {
r := rand.New(rand.NewSource(time.Now().UnixNano()))
switch kind {
case reflect.String:
return reflect.ValueOf(randomString(25))
case reflect.Int:
return reflect.ValueOf(r.Int())
case reflect.Int32:
return reflect.ValueOf(r.Int31())
case reflect.Int64:
return reflect.ValueOf(r.Int63())
case reflect.Float32:
return reflect.ValueOf(r.Float32())
case reflect.Float64:
return reflect.ValueOf(r.Float64())
case reflect.Bool:
val := r.Intn(2) > 0
return reflect.ValueOf(val)
}
return reflect.ValueOf("")
}