Jay
142 lines
2.9 KiB
Go
142 lines
2.9 KiB
Go
package transport
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import (
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"context"
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"git.wisehodl.dev/jay/go-honeybee/honeybeetest"
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"github.com/stretchr/testify/assert"
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"sync/atomic"
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"testing"
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"time"
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)
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func TestIdleWatchdog(t *testing.T) {
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t.Run("heartbeat resets timer, onTimeout not called", func(t *testing.T) {
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activity := make(chan struct{})
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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called := atomic.Bool{}
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go IdleWatchdog(
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ctx, activity, 200*time.Millisecond, func() { called.Store(true) },
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)
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for i := 0; i < 5; i++ {
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time.Sleep(20 * time.Millisecond)
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activity <- struct{}{}
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}
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honeybeetest.Never(t, func() bool {
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return called.Load()
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}, "unexpected onTimeout call")
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})
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t.Run("timeout fires onTimeout exactly once", func(t *testing.T) {
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activity := make(chan struct{})
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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count := atomic.Int32{}
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done := make(chan struct{})
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go IdleWatchdog(
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ctx, activity, 20*time.Millisecond, func() {
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// will panic on second close
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count.Add(1)
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close(done)
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},
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)
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honeybeetest.Eventually(t, func() bool {
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select {
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case <-done:
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return true
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default:
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return false
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}
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}, "expected onTimeout")
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assert.Equal(t, 1, int(count.Load()))
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})
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t.Run("ctx.Done exits without calling onTimeout", func(t *testing.T) {
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activity := make(chan struct{})
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ctx, cancel := context.WithCancel(context.Background())
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called := atomic.Bool{}
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done := make(chan struct{})
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go func() {
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IdleWatchdog(
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ctx, activity, 20*time.Second, func() { called.Store(true) },
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)
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close(done)
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}()
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cancel()
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honeybeetest.Eventually(t, func() bool {
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select {
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case <-done:
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return true
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default:
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return false
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}
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}, "expected RunWatchdog to exit")
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assert.False(t, called.Load())
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})
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t.Run("zero timeout exits on ctx.Done without firing onTimeout", func(t *testing.T) {
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activity := make(chan struct{})
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ctx, cancel := context.WithCancel(context.Background())
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called := atomic.Bool{}
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done := make(chan struct{})
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go func() {
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IdleWatchdog(
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ctx, activity, 0, func() { called.Store(true) },
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)
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close(done)
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}()
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cancel()
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honeybeetest.Eventually(t, func() bool {
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select {
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case <-done:
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return true
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default:
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return false
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}
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}, "expected RunWatchdog to exit")
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assert.False(t, called.Load())
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})
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t.Run("zero timeout drains activity without blocking", func(t *testing.T) {
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activity := make(chan struct{})
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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done := make(chan struct{})
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go func() {
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IdleWatchdog(ctx, activity, 0, func() {})
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close(done)
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}()
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// these must not block
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for i := 0; i < 5; i++ {
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activity <- struct{}{}
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}
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cancel()
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honeybeetest.Eventually(t, func() bool {
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select {
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case <-done:
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return true
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default:
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return false
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}
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}, "expected RunWatchdog to exit")
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})
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}
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