163 lines
3.7 KiB
Go
163 lines
3.7 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package mclock
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import (
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"testing"
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"time"
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)
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var _ Clock = System{}
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var _ Clock = new(Simulated)
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func TestSimulatedAfter(t *testing.T) {
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var (
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timeout = 30 * time.Minute
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offset = 99 * time.Hour
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adv = 11 * time.Minute
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c Simulated
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)
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c.Run(offset)
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end := c.Now().Add(timeout)
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ch := c.After(timeout)
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for c.Now() < end.Add(-adv) {
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c.Run(adv)
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select {
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case <-ch:
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t.Fatal("Timer fired early")
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default:
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}
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}
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c.Run(adv)
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select {
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case stamp := <-ch:
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want := AbsTime(0).Add(offset).Add(timeout)
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if stamp != want {
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t.Errorf("Wrong time sent on timer channel: got %v, want %v", stamp, want)
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}
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default:
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t.Fatal("Timer didn't fire")
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}
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}
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func TestSimulatedAfterFunc(t *testing.T) {
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var c Simulated
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called1 := false
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timer1 := c.AfterFunc(100*time.Millisecond, func() { called1 = true })
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if c.ActiveTimers() != 1 {
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t.Fatalf("%d active timers, want one", c.ActiveTimers())
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}
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if fired := timer1.Stop(); !fired {
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t.Fatal("Stop returned false even though timer didn't fire")
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}
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if c.ActiveTimers() != 0 {
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t.Fatalf("%d active timers, want zero", c.ActiveTimers())
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}
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if called1 {
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t.Fatal("timer 1 called")
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}
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if fired := timer1.Stop(); fired {
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t.Fatal("Stop returned true after timer was already stopped")
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}
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called2 := false
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timer2 := c.AfterFunc(100*time.Millisecond, func() { called2 = true })
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c.Run(50 * time.Millisecond)
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if called2 {
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t.Fatal("timer 2 called")
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}
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c.Run(51 * time.Millisecond)
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if !called2 {
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t.Fatal("timer 2 not called")
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}
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if fired := timer2.Stop(); fired {
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t.Fatal("Stop returned true after timer has fired")
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}
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}
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func TestSimulatedSleep(t *testing.T) {
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var (
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c Simulated
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timeout = 1 * time.Hour
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done = make(chan AbsTime, 1)
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)
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go func() {
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c.Sleep(timeout)
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done <- c.Now()
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}()
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c.WaitForTimers(1)
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c.Run(2 * timeout)
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select {
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case stamp := <-done:
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want := AbsTime(2 * timeout)
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if stamp != want {
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t.Errorf("Wrong time after sleep: got %v, want %v", stamp, want)
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}
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case <-time.After(5 * time.Second):
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t.Fatal("Sleep didn't return in time")
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}
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}
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func TestSimulatedTimerReset(t *testing.T) {
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var (
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c Simulated
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timeout = 1 * time.Hour
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)
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timer := c.NewTimer(timeout)
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c.Run(2 * timeout)
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select {
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case ftime := <-timer.C():
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if ftime != AbsTime(timeout) {
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t.Fatalf("wrong time %v sent on timer channel, want %v", ftime, AbsTime(timeout))
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}
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default:
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t.Fatal("timer didn't fire")
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}
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timer.Reset(timeout)
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c.Run(2 * timeout)
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select {
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case ftime := <-timer.C():
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if ftime != AbsTime(3*timeout) {
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t.Fatalf("wrong time %v sent on timer channel, want %v", ftime, AbsTime(3*timeout))
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}
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default:
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t.Fatal("timer didn't fire again")
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}
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}
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func TestSimulatedTimerStop(t *testing.T) {
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var (
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c Simulated
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timeout = 1 * time.Hour
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)
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timer := c.NewTimer(timeout)
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c.Run(2 * timeout)
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if timer.Stop() {
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t.Errorf("Stop returned true for fired timer")
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}
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select {
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case <-timer.C():
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default:
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t.Fatal("timer didn't fire")
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}
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}
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