Golang FakeClock示例

示例#1

文件： timeout_retry_strategy_test.go 项目： EMC-CMD/bosh-agent

func incrementSleepInBackground(fakeTimeService *fakeclock.FakeClock, delay time.Duration) chan struct{} {
	doneChan := make(chan struct{})
	go func() {
		for {
			select {
			case <-doneChan:
				return
			default:
				if fakeTimeService.WatcherCount() > 0 {
					fakeTimeService.Increment(delay)
					Eventually(fakeTimeService.WatcherCount).Should(Equal(0))
				}
			}
		}
	}()
	return doneChan
}

示例#2

文件： fake_clock_test.go 项目： EMC-CMD/bosh-agent

package fakeclock_test

import (
	"time"

	. "github.com/cloudfoundry/bosh-utils/internal/github.com/onsi/ginkgo"
	. "github.com/cloudfoundry/bosh-utils/internal/github.com/onsi/gomega"
	"github.com/cloudfoundry/bosh-utils/internal/github.com/pivotal-golang/clock/fakeclock"
)

var _ = Describe("FakeClock", func() {
	const Δ time.Duration = 10 * time.Millisecond

	var (
		fakeClock   *fakeclock.FakeClock
		initialTime time.Time
	)

	BeforeEach(func() {
		initialTime = time.Date(2014, 1, 1, 3, 0, 30, 0, time.UTC)
		fakeClock = fakeclock.NewFakeClock(initialTime)
	})

	Describe("Now", func() {
		It("returns the current time, w/o race conditions", func() {
			go fakeClock.Increment(time.Minute)
			Eventually(fakeClock.Now).Should(Equal(initialTime.Add(time.Minute)))
		})
	})

	Describe("Sleep", func() {

示例#3

文件： fake_ticker_test.go 项目： EMC-CMD/bosh-agent

package fakeclock_test

import (
	"time"

	"github.com/cloudfoundry/bosh-utils/internal/github.com/pivotal-golang/clock/fakeclock"

	. "github.com/cloudfoundry/bosh-utils/internal/github.com/onsi/ginkgo"
	. "github.com/cloudfoundry/bosh-utils/internal/github.com/onsi/gomega"
)

var _ = Describe("FakeTicker", func() {
	const Δ = 10 * time.Millisecond

	var (
		fakeClock   *fakeclock.FakeClock
		initialTime time.Time
	)

	BeforeEach(func() {
		initialTime = time.Date(2014, 1, 1, 3, 0, 30, 0, time.UTC)
		fakeClock = fakeclock.NewFakeClock(initialTime)
	})

	It("provides a channel that receives the time at each interval", func() {
		ticker := fakeClock.NewTicker(10 * time.Second)
		timeChan := ticker.C()
		Consistently(timeChan, Δ).ShouldNot(Receive())

		fakeClock.Increment(5 * time.Second)
		Consistently(timeChan, Δ).ShouldNot(Receive())