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Testing Alert Message Distribution System in dianping/cat

This test suite validates the SenderManager functionality in the Cat monitoring system, focusing on alert message distribution across different channels like email and SMS.

Test Coverage Overview

The test suite provides coverage for the SenderManager component’s core alert distribution capabilities.

Tests message sending through multiple alert channels (Mail, SMS)
Validates handling of different receiver types (email addresses, phone numbers)
Covers message entity construction with group, title, and content parameters

Implementation Analysis

The testing approach uses JUnit with ComponentTestCase framework for dependency injection and component lookup.

Key implementation patterns include:

Component lookup pattern for SenderManager instantiation
List-based receiver management
Channel-specific message routing validation

Technical Details

Testing infrastructure includes:

JUnit test framework
ComponentTestCase for dependency management
SendMessageEntity for message encapsulation
AlertChannel enum for channel selection
SenderManager component for message distribution

Best Practices Demonstrated

The test demonstrates several quality testing practices:

Clear separation of concerns between message construction and sending
Explicit test setup with component lookup
Multiple channel testing in a single test case
Realistic test data with actual email and phone number formats

dianping/cat

cat-home/src/test/java/com/dianping/cat/report/alert/SenderManagerTest.java

            
/*
 * Copyright (c) 2011-2018, Meituan Dianping. All Rights Reserved.
 *
 * 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 com.dianping.cat.report.alert;

import java.util.ArrayList;
import java.util.List;

import org.junit.Test;
import org.unidal.lookup.ComponentTestCase;

import com.dianping.cat.alarm.spi.AlertChannel;
import com.dianping.cat.alarm.spi.sender.SendMessageEntity;
import com.dianping.cat.alarm.spi.sender.SenderManager;

public class SenderManagerTest extends ComponentTestCase {

	@Test
	public void test() {
		SenderManager manager = lookup(SenderManager.class);

		List<String> receivers = new ArrayList<String>();
		SendMessageEntity message = new SendMessageEntity("group", "title11", "type", "content22", receivers);

		receivers.add("[email protected]");
		receivers.add("[email protected]");
		manager.sendAlert(AlertChannel.MAIL, message);

		receivers.clear();
		receivers.add("18616671676");
		manager.sendAlert(AlertChannel.SMS, message);
	}

}