Remove libs/clock in favor of luci-go/common/clock.

go/src/infra/libs/clock/systemtimer_test.go

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package clock
-
-import (
-        "testing"
-        "time"
-
-        . "github.com/smartystreets/goconvey/convey"
-)
-
-func TestSystemTimer(t *testing.T) {
-        t.Parallel()
-
-        Convey(`A systemTimer instance`, t, func() {
-                t := new(systemTimer)
-
-                Convey(`Should start with a nil channel.`, func() {
-                        So(t.GetC(), ShouldBeNil)
-                })
-
-                Convey(`When stopped, should return inactive.`, func() {
-                        So(t.Stop(), ShouldBeFalse)
-                })
-
-                Convey(`When reset`, func() {
-                        active := t.Reset(1 * time.Hour)
-                        So(active, ShouldBeFalse)
-
-                        Convey(`When reset to a short duration`, func() {
-                                active := t.Reset(1 * time.Microsecond)
-
-                                Convey(`Should return active.`, func() {
-                                        So(active, ShouldBeTrue)
-                                })
-
-                                Convey(`Should trigger shortly.`, func() {
-                                        tm := <-t.GetC()
-                                        So(tm, ShouldNotResemble, time.Time{})
-                                })
-                        })
-
-                        Convey(`When stopped, should return active and have a non-nil C.`, func() {
-                                active := t.Stop()
-                                So(active, ShouldBeTrue)
-                                So(t.GetC(), ShouldNotBeNil)
-                        })
-
-                        Convey(`When stopped, should return active.`, func() {
-                                active := t.Stop()
-                                So(active, ShouldBeTrue)
-                        })
-
-                        Convey(`Should have a non-nil channel.`, func() {
-                                So(t.GetC(), ShouldNotBeNil)
-                        })
-
-                        Reset(func() {
-                                t.Stop()
-                        })
-                })
-        })
-}