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Testing Transaction Report Builder Implementation in Dianping CAT

This test suite validates the functionality of the TransactionReportBuilder in the CAT monitoring system, focusing on report generation tasks across different time intervals. The tests ensure proper handling of daily, weekly, and monthly transaction report building operations.

Test Coverage Overview

The test suite provides comprehensive coverage of the TransactionReportBuilder’s temporal reporting capabilities:

Daily report generation testing with specific date handling
Weekly report aggregation verification
Monthly report compilation validation
Date parsing and formatting validation
Integration with CAT constants and core components

Implementation Analysis

The testing approach utilizes ComponentTestCase as the base class for dependency injection and component lookup functionality. Tests are structured around the TaskBuilder interface implementation, with specific focus on temporal report generation methods.

Component-based testing architecture
Consistent date format handling (yyyy-MM-dd)
Exception handling for date parsing
Builder pattern implementation testing

Technical Details

Testing infrastructure leverages:

JUnit 4 testing framework
ComponentTestCase for dependency management
SimpleDateFormat for date handling
TaskBuilder interface for report generation
CAT Constants integration
ParseException handling mechanisms

Best Practices Demonstrated

The test suite exemplifies several testing best practices:

Separate test methods for distinct time periods
Consistent error handling patterns
Clean component lookup and initialization
Clear test method naming conventions
Proper separation of concerns between test cases
Effective use of inheritance for test infrastructure

dianping/cat

cat-home/src/test/java/com/dianping/cat/report/task/transaction/TransactionReportBuilderTest.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.task.transaction;

import java.text.ParseException;
import java.text.SimpleDateFormat;

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

import com.dianping.cat.Constants;
import com.dianping.cat.report.page.transaction.task.TransactionReportBuilder;
import com.dianping.cat.report.task.TaskBuilder;

public class TransactionReportBuilderTest extends ComponentTestCase {

	@Test
	public void testDailyTask() {
		TaskBuilder builder = lookup(TaskBuilder.class, TransactionReportBuilder.ID);

		try {
			builder.buildDailyTask(TransactionReportBuilder.ID, Constants.CAT,
									new SimpleDateFormat("yyyy-MM-dd").parse("2016-01-26"));
		} catch (ParseException e) {
			e.printStackTrace();
		}
	}

	@Test
	public void testWeeklyTask() {
		TaskBuilder builder = lookup(TaskBuilder.class, TransactionReportBuilder.ID);

		try {
			builder.buildWeeklyTask(TransactionReportBuilder.ID, Constants.CAT,
									new SimpleDateFormat("yyyy-MM-dd").parse("2016-02-13"));
		} catch (ParseException e) {
			e.printStackTrace();
		}
	}

	@Test
	public void testMonthlyTask() {
		TaskBuilder builder = lookup(TaskBuilder.class, TransactionReportBuilder.ID);

		try {
			builder.buildMonthlyTask(TransactionReportBuilder.ID, Constants.CAT,
									new SimpleDateFormat("yyyy-MM-dd").parse("2016-01-01"));
		} catch (ParseException e) {
			e.printStackTrace();
		}
	}
}