nextcloud-spreed-signaling/deferred_executor_test.go

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/**
* Standalone signaling server for the Nextcloud Spreed app.
* Copyright (C) 2020 struktur AG
*
* @author Joachim Bauch <bauch@struktur.de>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package signaling
import (
"testing"
"time"
)
func TestDeferredExecutor_MultiClose(t *testing.T) {
e := NewDeferredExecutor(0)
defer e.waitForStop()
e.Close()
e.Close()
}
func TestDeferredExecutor_QueueSize(t *testing.T) {
e := NewDeferredExecutor(0)
defer e.waitForStop()
defer e.Close()
delay := 100 * time.Millisecond
e.Execute(func() {
time.Sleep(delay)
})
// The queue will block until the first command finishes.
a := time.Now()
e.Execute(func() {
time.Sleep(time.Millisecond)
})
b := time.Now()
delta := b.Sub(a)
// Allow one millisecond less delay to account for time variance on CI runners.
if delta+time.Millisecond < delay {
t.Errorf("Expected a delay of %s, got %s", delay, delta)
}
}
func TestDeferredExecutor_Order(t *testing.T) {
e := NewDeferredExecutor(64)
defer e.waitForStop()
defer e.Close()
var entries []int
getFunc := func(x int) func() {
return func() {
entries = append(entries, x)
}
}
done := make(chan struct{})
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for x := 0; x < 10; x++ {
e.Execute(getFunc(x))
}
e.Execute(func() {
close(done)
})
<-done
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for x := 0; x < 10; x++ {
if entries[x] != x {
t.Errorf("Expected %d at position %d, got %d", x, x, entries[x])
}
}
}
func TestDeferredExecutor_CloseFromFunc(t *testing.T) {
e := NewDeferredExecutor(64)
defer e.waitForStop()
done := make(chan struct{})
e.Execute(func() {
defer close(done)
e.Close()
})
<-done
}
func TestDeferredExecutor_DeferAfterClose(t *testing.T) {
e := NewDeferredExecutor(64)
defer e.waitForStop()
e.Close()
e.Execute(func() {
t.Error("method should not have been called")
})
}
func TestDeferredExecutor_WaitForStopTwice(t *testing.T) {
e := NewDeferredExecutor(64)
defer e.waitForStop()
e.Close()
e.waitForStop()
}