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// Copyright 2009 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.
package net
import (
"flag"
"fmt"
"testing"
)
var testDNSFlood = flag.Bool("dnsflood", false, "whether to test dns query flooding")
func TestDNSThreadLimit(t *testing.T) {
if !*testDNSFlood {
t.Skip("test disabled; use -dnsflood to enable")
}
const N = 10000
c := make(chan int, N)
for i := 0; i < N; i++ {
go func(i int) {
LookupIP(fmt.Sprintf("%d.net-test.golang.org", i))
c <- 1
}(i)
}
// Don't bother waiting for the stragglers; stop at 0.9 N.
for i := 0; i < N*9/10; i++ {
if i%100 == 0 {
//println("TestDNSThreadLimit:", i)
}
<-c
}
// If we're still here, it worked.
}
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