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minio/pkg/pubsub/pubsub_test.go

67 lines
1.4 KiB

/*
* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package pubsub
import (
"fmt"
"testing"
)
func TestSubscribe(t *testing.T) {
ps := New()
ps.Subscribe()
ps.Subscribe()
if len(ps.subs) != 2 {
t.Errorf("expected 2 subscribers")
}
}
func TestUnsubscribe(t *testing.T) {
ps := New()
c1 := ps.Subscribe()
ps.Subscribe()
ps.Unsubscribe(c1)
if len(ps.subs) != 1 {
t.Errorf("expected 1 subscriber")
}
}
func TestPubSub(t *testing.T) {
ps := New()
c1 := ps.Subscribe()
val := "hello"
ps.Publish(val)
msg := <-c1
if msg != "hello" {
t.Errorf(fmt.Sprintf("expected %s , found %s", val, msg))
}
}
func TestMultiPubSub(t *testing.T) {
ps := New()
c1 := ps.Subscribe()
c2 := ps.Subscribe()
val := "hello"
ps.Publish(val)
msg1 := <-c1
msg2 := <-c2
if msg1 != "hello" && msg2 != "hello" {
t.Errorf(fmt.Sprintf("expected both subscribers to have%s , found %s and %s", val, msg1, msg2))
}
}