golang faketime 代码
文件路径：/src/runtime/testdata/testfaketime/faketime.go
/ Copyright 2019 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/ Test faketime support. This is its own test program because we have
/ to build it with custom build tags and hence want to minimize
/ dependencies.
package main
import (
"os"
"time"
)
func main() {
println("line 1")
/ Stream switch, increments time
os.Stdout.WriteString("line 2\n")
os.Stdout.WriteString("line 3\n")
/ Stream switch, increments time
os.Stderr.WriteString("line 4\n")
/ Time jump
time.Sleep(1 * time.Second)
os.Stdout.WriteString("line 5\n")
/ Print the current time.
os.Stdout.WriteString(time.Now().UTC().Format(time.RFC3339))
}