83 lines
1.8 KiB
Go
83 lines
1.8 KiB
Go
// Copyright 2019 Drone.IO Inc. All rights reserved.
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// Use of this source code is governed by the Drone Non-Commercial License
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// that can be found in the LICENSE file.
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package pubsub
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import (
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"testing"
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"github.com/drone/drone/core"
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)
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func nop(*core.Message) {}
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func TestSubscription_publish(t *testing.T) {
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s := &subscriber{
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handler: make(chan *core.Message, 5),
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quit: make(chan struct{}),
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}
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e := new(core.Message)
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s.publish(e)
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if got, want := len(s.handler), 1; got != want {
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t.Errorf("Want buffered channel size %d, got %d", want, got)
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}
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if got, want := <-s.handler, e; got != want {
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t.Errorf("Want event received from channel")
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}
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if got, want := len(s.handler), 0; got != want {
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t.Errorf("Want buffered channel size %d, got %d", want, got)
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}
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}
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func TestSubscription_buffer(t *testing.T) {
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s := &subscriber{
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handler: make(chan *core.Message, 1),
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quit: make(chan struct{}),
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}
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// the buffer size is 1 to simulate what happens
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// if the subscriber cannot keep up with processing
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// and the buffer fills up. In this case, events
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// should be ignored until pending events are
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// processed.
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e := new(core.Message)
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s.publish(e)
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s.publish(e)
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s.publish(e)
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s.publish(e)
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s.publish(e)
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if got, want := len(s.handler), 1; got != want {
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t.Errorf("Want buffered channel size %d, got %d", want, got)
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}
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}
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func TestSubscription_stop(t *testing.T) {
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s := &subscriber{
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handler: make(chan *core.Message, 1),
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quit: make(chan struct{}),
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}
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if got, want := s.done, false; got != want {
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t.Errorf("Want subscription open")
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}
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s.close()
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if got, want := s.done, true; got != want {
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t.Errorf("Want subscription closed")
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}
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// if the subscription is closed we should
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// ignore any new events being published.
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e := new(core.Message)
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s.publish(e)
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s.publish(e)
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s.publish(e)
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s.publish(e)
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s.publish(e)
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}
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