86 lines
1.7 KiB
Go
86 lines
1.7 KiB
Go
package connection
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import (
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"strconv"
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"sync"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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)
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func TestRegisterServerLocation(t *testing.T) {
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m := newTunnelMetrics()
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tunnels := 20
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var wg sync.WaitGroup
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wg.Add(tunnels)
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for i := 0; i < tunnels; i++ {
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go func(i int) {
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id := strconv.Itoa(i)
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m.registerServerLocation(id, "LHR")
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wg.Done()
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}(i)
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}
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wg.Wait()
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for i := 0; i < tunnels; i++ {
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id := strconv.Itoa(i)
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assert.Equal(t, "LHR", m.oldServerLocations[id])
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}
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wg.Add(tunnels)
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for i := 0; i < tunnels; i++ {
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go func(i int) {
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id := strconv.Itoa(i)
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m.registerServerLocation(id, "AUS")
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wg.Done()
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}(i)
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}
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wg.Wait()
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for i := 0; i < tunnels; i++ {
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id := strconv.Itoa(i)
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assert.Equal(t, "AUS", m.oldServerLocations[id])
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}
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}
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func TestObserverEventsDontBlock(t *testing.T) {
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observer := NewObserver(&log, &log, false)
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var mu sync.Mutex
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observer.RegisterSink(EventSinkFunc(func(_ Event) {
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// callback will block if lock is already held
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mu.Lock()
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mu.Unlock()
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}))
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timeout := time.AfterFunc(5*time.Second, func() {
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mu.Unlock() // release the callback on timer expiration
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t.Fatal("observer is blocked")
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})
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mu.Lock() // block the callback
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for i := 0; i < 2*observerChannelBufferSize; i++ {
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observer.sendRegisteringEvent(0)
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}
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if pending := timeout.Stop(); pending {
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// release the callback if timer hasn't expired yet
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mu.Unlock()
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}
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}
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type eventCollectorSink struct {
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observedEvents []Event
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mu sync.Mutex
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}
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func (s *eventCollectorSink) OnTunnelEvent(event Event) {
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s.mu.Lock()
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defer s.mu.Unlock()
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s.observedEvents = append(s.observedEvents, event)
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}
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func (s *eventCollectorSink) assertSawEvent(t *testing.T, event Event) {
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s.mu.Lock()
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defer s.mu.Unlock()
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assert.Contains(t, s.observedEvents, event)
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} |