128 lines
2.2 KiB
Go
128 lines
2.2 KiB
Go
package gubgub
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import (
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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 TestTriggerClose(t *testing.T) {
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to := TopicOptions{}
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var calls int
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to.Apply(
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WithOnClose(func() { calls++ }),
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WithOnClose(func() { calls++ }),
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WithOnClose(func() { calls++ }))
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to.TriggerClose()
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if calls != 3 {
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t.Fatalf("wants 3 calls but got %d", calls)
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}
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}
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func TestTriggerSubscribe(t *testing.T) {
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to := TopicOptions{}
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var calls int
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to.Apply(
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WithOnSubscribe(func() { calls++ }),
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WithOnSubscribe(func() { calls++ }),
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WithOnSubscribe(func() { calls++ }))
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to.TriggerSubscribe()
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if calls != 3 {
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t.Fatalf("wants 3 calls but got %d", calls)
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}
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}
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func TestWithOnClose(t *testing.T) {
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type closable interface {
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Close()
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}
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feedback := make(chan struct{}, 1)
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defer close(feedback)
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onClose := WithOnClose(func() { feedback <- struct{}{} })
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testCases := []struct {
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name string
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topic closable
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}{
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{
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name: "sync topic",
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topic: NewSyncTopic[int](onClose),
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},
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{
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name: "async topic",
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topic: NewAsyncTopic[int](onClose),
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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go tc.topic.Close()
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select {
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case <-feedback:
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break
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case <-testTimer(t, time.Second).C:
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t.Fatalf("expected feedback by now")
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}
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})
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}
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}
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func TestWithOnSubscribe(t *testing.T) {
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const totalSub = 10
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feedback := make(chan int, totalSub)
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defer close(feedback)
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var counter int
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onSubscribe := WithOnSubscribe(func() {
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counter++
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feedback <- counter
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})
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testCases := []struct {
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name string
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topic Subscribable[int]
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}{
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{
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name: "sync topic",
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topic: NewSyncTopic[int](onSubscribe),
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},
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{
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name: "async topic",
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topic: NewAsyncTopic[int](onSubscribe),
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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counter = 0
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for range totalSub {
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tc.topic.Subscribe(func(i int) bool { return true })
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}
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count := 0
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timeout := testTimer(t, time.Second)
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for count < totalSub {
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select {
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case c := <-feedback:
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count++
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assert.Equal(t, count, c, "expected %d but got %d instead", count, c)
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case <-timeout.C:
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t.Fatalf("expected %d feedback items by now but only got %d", totalSub, count)
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}
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}
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})
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}
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}
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