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- // Copyright 2018 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 mclock
- import (
- "testing"
- "time"
- )
- var _ Clock = System{}
- var _ Clock = new(Simulated)
- func TestSimulatedAfter(t *testing.T) {
- var (
- timeout = 30 * time.Minute
- offset = 99 * time.Hour
- adv = 11 * time.Minute
- c Simulated
- )
- c.Run(offset)
- end := c.Now().Add(timeout)
- ch := c.After(timeout)
- for c.Now() < end.Add(-adv) {
- c.Run(adv)
- select {
- case <-ch:
- t.Fatal("Timer fired early")
- default:
- }
- }
- c.Run(adv)
- select {
- case stamp := <-ch:
- want := AbsTime(0).Add(offset).Add(timeout)
- if stamp != want {
- t.Errorf("Wrong time sent on timer channel: got %v, want %v", stamp, want)
- }
- default:
- t.Fatal("Timer didn't fire")
- }
- }
- func TestSimulatedAfterFunc(t *testing.T) {
- var c Simulated
- called1 := false
- timer1 := c.AfterFunc(100*time.Millisecond, func() { called1 = true })
- if c.ActiveTimers() != 1 {
- t.Fatalf("%d active timers, want one", c.ActiveTimers())
- }
- if fired := timer1.Stop(); !fired {
- t.Fatal("Stop returned false even though timer didn't fire")
- }
- if c.ActiveTimers() != 0 {
- t.Fatalf("%d active timers, want zero", c.ActiveTimers())
- }
- if called1 {
- t.Fatal("timer 1 called")
- }
- if fired := timer1.Stop(); fired {
- t.Fatal("Stop returned true after timer was already stopped")
- }
- called2 := false
- timer2 := c.AfterFunc(100*time.Millisecond, func() { called2 = true })
- c.Run(50 * time.Millisecond)
- if called2 {
- t.Fatal("timer 2 called")
- }
- c.Run(51 * time.Millisecond)
- if !called2 {
- t.Fatal("timer 2 not called")
- }
- if fired := timer2.Stop(); fired {
- t.Fatal("Stop returned true after timer has fired")
- }
- }
- func TestSimulatedSleep(t *testing.T) {
- var (
- c Simulated
- timeout = 1 * time.Hour
- done = make(chan AbsTime, 1)
- )
- go func() {
- c.Sleep(timeout)
- done <- c.Now()
- }()
- c.WaitForTimers(1)
- c.Run(2 * timeout)
- select {
- case stamp := <-done:
- want := AbsTime(2 * timeout)
- if stamp != want {
- t.Errorf("Wrong time after sleep: got %v, want %v", stamp, want)
- }
- case <-time.After(5 * time.Second):
- t.Fatal("Sleep didn't return in time")
- }
- }
- func TestSimulatedTimerReset(t *testing.T) {
- var (
- c Simulated
- timeout = 1 * time.Hour
- )
- timer := c.NewTimer(timeout)
- c.Run(2 * timeout)
- select {
- case ftime := <-timer.C():
- if ftime != AbsTime(timeout) {
- t.Fatalf("wrong time %v sent on timer channel, want %v", ftime, AbsTime(timeout))
- }
- default:
- t.Fatal("timer didn't fire")
- }
- timer.Reset(timeout)
- c.Run(2 * timeout)
- select {
- case ftime := <-timer.C():
- if ftime != AbsTime(3*timeout) {
- t.Fatalf("wrong time %v sent on timer channel, want %v", ftime, AbsTime(3*timeout))
- }
- default:
- t.Fatal("timer didn't fire again")
- }
- }
- func TestSimulatedTimerStop(t *testing.T) {
- var (
- c Simulated
- timeout = 1 * time.Hour
- )
- timer := c.NewTimer(timeout)
- c.Run(2 * timeout)
- if timer.Stop() {
- t.Errorf("Stop returned true for fired timer")
- }
- select {
- case <-timer.C():
- default:
- t.Fatal("timer didn't fire")
- }
- }
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