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79 lines
1.2 KiB
Go
79 lines
1.2 KiB
Go
package ntime
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import (
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"errors"
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"time"
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)
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// errTimeout indicates a timeout.
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var errTimeout = errors.New("timeout")
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type (
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// Ticker interface wraps the Chan and Stop methods.
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Ticker interface {
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Chan() <-chan time.Time
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Stop()
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}
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// FakeTicker interface is used for unit testing.
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FakeTicker interface {
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Ticker
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Done()
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Tick()
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Wait(d time.Duration) error
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}
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fakeTicker struct {
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c chan time.Time
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done chan struct{}
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}
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realTicker struct {
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*time.Ticker
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}
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)
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// NewTicker returns a Ticker.
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func NewTicker(d time.Duration) Ticker {
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return &realTicker{
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Ticker: time.NewTicker(d),
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}
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}
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func (rt *realTicker) Chan() <-chan time.Time {
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return rt.C
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}
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// NewFakeTicker returns a FakeTicker.
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func NewFakeTicker() FakeTicker {
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return &fakeTicker{
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c: make(chan time.Time, 1),
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done: make(chan struct{}, 1),
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}
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}
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func (ft *fakeTicker) Chan() <-chan time.Time {
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return ft.c
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}
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func (ft *fakeTicker) Done() {
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ft.done <- struct{}{}
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}
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func (ft *fakeTicker) Stop() {
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close(ft.c)
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}
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func (ft *fakeTicker) Tick() {
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ft.c <- time.Now()
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}
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func (ft *fakeTicker) Wait(d time.Duration) error {
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select {
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case <-time.After(d):
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return errTimeout
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case <-ft.done:
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return nil
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}
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}
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