Back to Repositories

Testing Local Report Bucket Storage Implementation in CAT

This test suite validates the LocalReportBucket implementation in the CAT monitoring system, focusing on storage and retrieval of report data in local file system. The tests ensure proper initialization, file handling, and cleanup of report buckets.

Test Coverage Overview

The test suite provides comprehensive coverage of the LocalReportBucket functionality, extending the StringBucketTestCase base class.

Tests bucket initialization with specific parameters (cat, date, index)
Verifies proper file system operations for report storage
Ensures correct cleanup of generated files and resources

Implementation Analysis

The testing approach leverages JUnit framework features for local storage validation.

Uses inheritance from StringBucketTestCase to reuse common test patterns
Implements custom bucket creation logic via createBucket() method
Handles proper resource cleanup through @After annotation

Technical Details

Testing infrastructure utilizes:

JUnit test framework for test execution
File system operations for bucket storage
ReportBucket interface implementation
Dependency injection through lookup mechanism

Best Practices Demonstrated

The test class demonstrates several testing best practices:

Proper resource cleanup after test execution
Clear separation of setup and teardown logic
Extension of base test case for common functionality
Explicit handling of file system resources

dianping/cat

cat-core/src/test/java/com/dianping/cat/storage/report/LocalReportBucketTest.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.storage.report;

import java.io.File;
import java.io.IOException;
import java.util.Date;

import org.junit.After;

import com.dianping.cat.report.LocalReportBucket;
import com.dianping.cat.report.ReportBucket;
import com.dianping.cat.storage.StringBucketTestCase;

public class LocalReportBucketTest extends StringBucketTestCase {

	@Override
	protected ReportBucket createBucket() throws Exception, IOException {
		ReportBucket bucket = lookup(ReportBucket.class, String.class.getName() + "-report");
		bucket.initialize("cat", new Date(), 0);
		return bucket;
	}

	@After
	@Override
	public void tearDown() throws Exception {
		super.tearDown();
		File m_baseDir = ((LocalReportBucket) this.bucket).getBaseDir();
		String logicalPath = ((LocalReportBucket) this.bucket).getLogicalPath();

		new File(m_baseDir, logicalPath).delete();
		new File(m_baseDir, logicalPath + ".idx").delete();
	}

}