/
timer_test.go
118 lines (98 loc) · 2.69 KB
/
timer_test.go
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// Copyright 2016 The Cockroach Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied. See the License for the specific language governing
// permissions and limitations under the License.
//
// Author: Nathan VanBenschoten (nvanbenschoten@gmail.com)
package util
import (
"testing"
"time"
)
func TestTimerTimeout(t *testing.T) {
var timer Timer
defer timer.Stop()
timer = timer.Reset(1 * time.Millisecond)
<-timer.C
timer.Read = true
select {
case <-timer.C:
t.Errorf("expected timer to only timeout once after Reset; got two timeouts")
case <-time.After(5 * time.Millisecond):
}
}
func TestTimerStop(t *testing.T) {
var timer Timer
timer = timer.Reset(1 * time.Millisecond)
timer.Stop()
select {
case <-timer.C:
t.Errorf("expected timer to stop after call to Stop; got timer that was not stopped")
case <-time.After(5 * time.Millisecond):
}
}
func TestTimerUninitializedStopNoop(t *testing.T) {
var timer Timer
timer.Stop()
}
func TestTimerResetBeforeTimeout(t *testing.T) {
var timer Timer
defer timer.Stop()
timer = timer.Reset(1 * time.Millisecond)
timer = timer.Reset(1 * time.Millisecond)
<-timer.C
timer.Read = true
select {
case <-timer.C:
t.Errorf("expected timer to only timeout once after Reset; got two timeouts")
case <-time.After(5 * time.Millisecond):
}
}
func TestTimerResetAfterTimeoutAndNoRead(t *testing.T) {
var timer Timer
defer timer.Stop()
timer = timer.Reset(1 * time.Millisecond)
time.Sleep(2 * time.Millisecond)
timer = timer.Reset(1 * time.Millisecond)
<-timer.C
timer.Read = true
select {
case <-timer.C:
t.Errorf("expected timer to only timeout once after Reset; got two timeouts")
case <-time.After(5 * time.Millisecond):
}
}
func TestTimerResetAfterTimeoutAndRead(t *testing.T) {
var timer Timer
defer timer.Stop()
timer = timer.Reset(1 * time.Millisecond)
time.Sleep(2 * time.Millisecond)
<-timer.C
timer.Read = true
timer = timer.Reset(1 * time.Millisecond)
<-timer.C
timer.Read = true
select {
case <-timer.C:
t.Errorf("expected timer to only timeout once after Reset; got two timeouts")
case <-time.After(5 * time.Millisecond):
}
}
func TestTimerMakesProgressInLoop(t *testing.T) {
var timer Timer
defer timer.Stop()
for i := 0; i < 5; i++ {
timer = timer.Reset(1 * time.Millisecond)
<-timer.C
timer.Read = true
}
}