com.novoda.imageloader.core.file.FileUtilTest.java Source code

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Here is the source code for com.novoda.imageloader.core.file.FileUtilTest.java

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/**
 * Copyright 2012 Novoda Ltd
 *
 * 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 com.novoda.imageloader.core.file;

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

import java.io.File;
import java.io.IOException;

import junit.framework.Assert;

import org.apache.commons.io.FileUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import com.novoda.imageloader.core.Util;
import com.novoda.imageloader.core.file.util.FileUtil;

public class FileUtilTest {

    private FileUtil fileUtil = new FileUtil();
    private File cacheDir;

    @Before
    public void before() {
        cacheDir = new File(Util.FOLDER_FOR_TEST_TMP_FILES);
        cacheDir.mkdirs();
    }

    @After
    public void after() throws IOException {
        FileUtils.deleteDirectory(cacheDir);
    }

    @Test
    public void shouldPrepareTheCacheDir() {

    }

    @Test
    public void shouldDeleteAllFiles() throws IOException {
        File f1 = createFile("1");
        File f2 = createFile("2");

        assertTrue(fileUtil.deleteFileCache(cacheDir.getAbsolutePath()));

        assertFalse(f1.exists());
        assertFalse(f2.exists());
    }

    @Test
    public void shouldReduceFiles() throws IOException {
        File f1 = createFile("1", 10000);
        File f2 = createFile("2");
        File f3 = createFile("3", 105000);
        File f4 = createFile("4", System.currentTimeMillis());

        assertTrue(fileUtil.reduceFileCache(cacheDir.getAbsolutePath(), 24 * 3600 * 1000));

        assertFalse(f1.exists());
        assertTrue(f2.exists());
        assertFalse(f3.exists());
        assertTrue(f4.exists());
    }

    private File createFile(String name) {
        return createFile(name, -1);
    }

    private File createFile(String name, long lastModified) {
        try {
            File f1 = new File(cacheDir, name + ".tmp");
            FileUtils.write(f1, name);
            if (lastModified != -1) {
                f1.setLastModified(lastModified);
            }
            return f1;
        } catch (Exception e) {
            Assert.fail("Can't crete file for the test" + e.getMessage());
            throw new RuntimeException("Can't crete file for the test " + e.getMessage());
        }
    }

}