faketime

Mock time.Now() in golang

Examples

time.Date style

package main

import (
    "fmt"
    "github.com/tkuchiki/faketime"
    "time"
)

func main() {
    fmt.Println(time.Now()) // 2017-06-07 18:59:35.01959464 +0900 JST
    f := faketime.NewFaketime(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
    defer f.Undo()
    f.Do()
    fmt.Println(time.Now()) // 2009-11-10 23:00:00 +0000 UTC
}

NewFaketimeWithTime

with time.Time

package main

import (
    "fmt"
    "github.com/tkuchiki/faketime"
    "time"
)

func main() {
    fmt.Println(time.Now()) // 2017-06-07 18:59:35.01959464 +0900 JST
    t := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
    f := faketime.NewFaketimeWithTime(t)
    defer f.Undo()
    f.Do()
    fmt.Println(time.Now()) // 2009-11-10 23:00:00 +0000 UTC
}