go/test/init1.go
Alan Donovan 052c942e20 test: ensure all failing tests exit nonzero.
Previously merely printing an error would cause the golden
file comparison (in 'bash run') to fail, but that is no longer
the case with the new run.go driver.

R=iant
CC=golang-dev
https://golang.org/cl/7310087
2013-02-12 13:17:49 -05:00

46 lines
815 B
Go

// run
// Copyright 2011 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 that goroutines and garbage collection run during init.
package main
import "runtime"
var x []byte
func init() {
c := make(chan int)
go send(c)
<-c
const chunk = 1 << 20
memstats := new(runtime.MemStats)
runtime.ReadMemStats(memstats)
sys := memstats.Sys
b := make([]byte, chunk)
for i := range b {
b[i] = byte(i%10 + '0')
}
s := string(b)
for i := 0; i < 1000; i++ {
x = []byte(s)
}
runtime.ReadMemStats(memstats)
sys1 := memstats.Sys
if sys1-sys > chunk*50 {
println("allocated 1000 chunks of", chunk, "and used ", sys1-sys, "memory")
panic("init1")
}
}
func send(c chan int) {
c <- 1
}
func main() {
}