go/sync2/semaphore_test.go

42 lines
816 B
Go

// Copyright 2012, Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sync2
import (
"testing"
"time"
)
func TestSemaNoTimeout(t *testing.T) {
s := NewSemaphore(1)
s.Acquire()
released := false
go func() {
time.Sleep(10 * time.Millisecond)
released = true
s.Release()
}()
s.Acquire()
if !released {
t.Errorf("want true, got false")
}
}
func TestSemaTimeout(t *testing.T) {
s := NewSemaphore(1)
s.Acquire()
go func() {
time.Sleep(10 * time.Millisecond)
s.Release()
}()
if ok := s.AcquireTimeout(5 * time.Millisecond); ok {
t.Errorf("want false, got true")
}
time.Sleep(10 * time.Millisecond)
if ok := s.AcquireTimeout(5 * time.Millisecond); !ok {
t.Errorf("want true, got false")
}
}