FileUtilTest.java

/*
 * Copyright 2004-2012 the Seasar Foundation and the Others.
 *
 * 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 org.seasar.util.io;

import java.io.File;
import java.net.URL;

import org.junit.Test;
import org.seasar.util.net.URLUtil;

import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import static org.seasar.util.io.FileUtil.*;

/**
 * @author koichik
 * 
 */
public class FileUtilTest {

    URL url = ResourceUtil.getResource(getClass().getName().replace('.', '/')
        + ".txt");

    File inputFile = URLUtil.toFile(url);

    /**
     * @throws Exception
     */
    @Test
    public void testFileToFile() throws Exception {
        byte[] bytes = readBytes(inputFile);
        assertThat(bytes, is("あいうえお".getBytes("UTF-8")));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testReadAutoDetectCr() throws Exception {
        assertThat(
            FileUtil.readJisAutoDetect(getPath("hoge_cr.txt")),
            is("aaa\rbbb"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testReadAutoDtectLf() throws Exception {
        assertThat(
            FileUtil.readJisAutoDetect(getPath("hoge_lf.txt")),
            is("aaa\nbbb"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testReadAutoDetectCrLf() throws Exception {
        assertThat(
            FileUtil.readJisAutoDetect(getPath("hoge_crlf.txt")),
            is("aaa\r\nbbb"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testReadUTF8() throws Exception {
        assertThat(FileUtil.readUTF8(getPath("hoge_utf8.txt")), is("あ"));
    }

    private String getPath(String fileName) {
        return getClass()
            .getName()
            .replace('.', '/')
            .replaceFirst(getClass().getSimpleName(), fileName);
    }

}