| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 observer |
| |
| import ( |
| "reflect" |
| "testing" |
| ) |
| |
| import ( |
| "github.com/stretchr/testify/assert" |
| ) |
| |
| func TestListenable(t *testing.T) { |
| el := &TestEventListener{} |
| bl := NewBaseListener() |
| b := &bl |
| b.AddEventListener(el) |
| b.AddEventListener(el) |
| al := b.GetAllEventListeners() |
| assert.Equal(t, len(al), 1) |
| assert.Equal(t, al[0].GetEventType(), reflect.TypeOf(TestEvent{})) |
| b.RemoveEventListener(el) |
| assert.Equal(t, len(b.GetAllEventListeners()), 0) |
| var ts []EventListener |
| ts = append(ts, el) |
| b.AddEventListeners(ts) |
| assert.Equal(t, len(al), 1) |
| |
| } |
| |
| type TestEvent struct { |
| BaseEvent |
| } |
| |
| type TestEventListener struct { |
| EventListener |
| } |
| |
| func (tel *TestEventListener) OnEvent(e Event) error { |
| return nil |
| } |
| |
| func (tel *TestEventListener) GetPriority() int { |
| return -1 |
| } |
| |
| func (tel *TestEventListener) GetEventType() reflect.Type { |
| return reflect.TypeOf(TestEvent{}) |
| } |