fm.last.citrine.service.LogFileManagerTest.java Source code

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Here is the source code for fm.last.citrine.service.LogFileManagerTest.java

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/*
 * Copyright 2010 Last.fm
 *
 *  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 fm.last.citrine.service;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

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

import org.apache.commons.io.FileUtils;
import org.joda.time.DateTime;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;

import fm.last.commons.test.file.ClassDataFolder;
import fm.last.commons.test.file.TemporaryFolder;

/**
 * Unit test case for the LogFileManager.
 */
public class LogFileManagerTest {

    @Rule
    public ClassDataFolder dataFolder = new ClassDataFolder();

    @Rule
    public TemporaryFolder tempFolder = new TemporaryFolder();

    private LogFileManager logFileManager;

    @Before
    public void setup() throws IOException {
        logFileManager = new LogFileManagerImpl(dataFolder.getFolder().getAbsolutePath());
    }

    @Test
    public void testFindAll() {
        List<String> logFiles = logFileManager.findAllLogFiles();
        assertEquals(4, logFiles.size());
        assertTrue(logFiles.contains("808.log"));
        assertTrue(logFiles.contains("808.log.1"));
        assertTrue(logFiles.contains("808.log.2"));
        assertTrue(logFiles.contains("808.log.gz"));
    }

    @Test
    public void testFindAll_NonExistentFolder() {
        logFileManager = new LogFileManagerImpl("non-existent-folder");
        List<String> logFiles = logFileManager.findAllLogFiles();
        assertEquals(0, logFiles.size());
    }

    @Test
    public void testTail() throws IOException {
        String tail = logFileManager.tail("808.log", 142);
        assertEquals(
                "2008-01-14 18:25:54,757 fm.last.citrine.jobs.syscommand.RollingFileSysCommandObserver.sysOut(RollingFileSysCommandObserver.java:72) version.sh",
                tail);
    }

    @Test
    public void testDeleteBefore() throws IOException, InterruptedException {
        logFileManager = new LogFileManagerImpl(tempFolder.getRoot().getAbsolutePath());
        File logFile1 = tempFolder.newFile("1.log");
        FileUtils.writeStringToFile(logFile1, "bla");
        File otherFile1 = tempFolder.newFile("1.bla");
        FileUtils.writeStringToFile(otherFile1, "bla");
        Thread.sleep(4000);
        DateTime cutoff = new DateTime();
        Thread.sleep(1000);
        File logFile2 = tempFolder.newFile("2.log");
        FileUtils.writeStringToFile(logFile2, "bla");
        logFileManager.deleteBefore(cutoff);

        // make sure only older file (logFile1) was deleted
        List<String> logFiles = logFileManager.findAllLogFiles();
        assertEquals(1, logFiles.size());
        assertEquals(logFile2.getName(), logFiles.get(0));

        // make sure non-log file was not deleted
        File[] files = tempFolder.getRoot().listFiles();
        assertEquals(2, files.length);
        for (File file : files) {
            String fileName = file.getName();
            assertTrue(fileName.equals(logFile2.getName()) || fileName.equals(otherFile1.getName()));
        }
    }
}