fakeClock.Increment(5 * time.Second)
			Consistently(doneSleeping, Δ).ShouldNot(BeClosed())

			fakeClock.Increment(4 * time.Second)
			Consistently(doneSleeping, Δ).ShouldNot(BeClosed())

			fakeClock.Increment(1 * time.Second)
			Eventually(doneSleeping).Should(BeClosed())
		})
	})

	Describe("WatcherCount", func() {
		Context("when a timer is created", func() {
			It("increments the watcher count", func() {
				fakeClock.NewTimer(time.Second)
				Expect(fakeClock.WatcherCount()).To(Equal(1))

				fakeClock.NewTimer(2 * time.Second)
				Expect(fakeClock.WatcherCount()).To(Equal(2))
			})
		})

		Context("when a timer fires", func() {
			It("increments the watcher count", func() {
				fakeClock.NewTimer(time.Second)
				Expect(fakeClock.WatcherCount()).To(Equal(1))

				fakeClock.Increment(time.Second)
				Expect(fakeClock.WatcherCount()).To(Equal(0))
			})
var _ = Describe("FakeTimer", 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("proivdes a channel that receives after the given interval has elapsed", func() {
		timer := fakeClock.NewTimer(10 * time.Second)
		timeChan := timer.C()
		Consistently(timeChan, Δ).ShouldNot(Receive())

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

		fakeClock.Increment(4 * time.Second)
		Consistently(timeChan, Δ).ShouldNot(Receive())

		fakeClock.Increment(1 * time.Second)
		Eventually(timeChan).Should(Receive(Equal(initialTime.Add(10 * time.Second))))

		fakeClock.Increment(10 * time.Second)
		Consistently(timeChan, Δ).ShouldNot(Receive())
	})