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// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package les
import (
"testing"
)
func TestExecQueue(t *testing.T) {
var (
N = 10000
q = newExecQueue(N)
counter int
execd = make(chan int)
testexit = make(chan struct{})
)
defer q.quit()
defer close(testexit)
check := func(state string, wantOK bool) {
c := counter
counter++
qf := func() {
select {
case execd <- c:
case <-testexit:
}
}
if q.canQueue() != wantOK {
t.Fatalf("canQueue() == %t for %s", !wantOK, state)
}
if q.queue(qf) != wantOK {
t.Fatalf("canQueue() == %t for %s", !wantOK, state)
}
}
for i := 0; i < N; i++ {
check("queue below cap", true)
}
check("full queue", false)
for i := 0; i < N; i++ {
if c := <-execd; c != i {
t.Fatal("execution out of order")
}
}
q.quit()
check("closed queue", false)
}
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