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() {
// Upper bound of supported platform resolution. Windows is 15ms, so
// make sure we exceed that.
active := t.Reset(100 * time.Millisecond)
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()
})
})
})
}
