package com.opslab.util;
import com.opslab.util.CharsetUtil;
import com.opslab.util.FileUtil;
import org.junit.Test;
import test.TestUtil;
import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.List;
import static org.junit.Assert.assertEquals;
public class FileUtilTest {
String path = TestUtil.path;
@Test
public void testCountLines() throws IOException {
String file = path + "EnglishWrite.txt";
System.out.println(FileUtil.countLines(new File(file)));
}
@Test
public void testHash() {
String file = path + "ali.gif";
assertEquals("文件Hash校验错误", "4FE6FF69F7257F2E8C36B0752B5393BF",
FileUtil.fileMD5(new File(file)).toUpperCase());
}
@Test
public void testFileType() throws IOException {
String efile = path + "ali.gif";
String hfile = path + "tgepng";
assertEquals("文件类型判断有错", "gif", FileUtil.fileType(new File(efile)));
assertEquals("文件类型判断有错", "png", FileUtil.fileType(new File(hfile)));
assertEquals("获取文件的mime类型错误", "image/gif", FileUtil.mimeType(efile));
}
@Test
public void testModify() {
String exefile = path + "cmdexe";
Date date = FileUtil.modifyTime(new File(exefile));
//assertEquals("获取文件修改的最后时间错误","2010-11-21 11:24:03",DateUtil.DateTime(date));
}
@Test
public void testLines() {
System.out.println("=====按List讲文件全部读入到List中======");
System.out.println("全英文文件测试");
String efile = path + "English.txt";
List<String> lines = FileUtil.lines(new File(efile));
System.out.println(lines);
System.out.println("读取文件的前3行");
lines = FileUtil.lines(new File(efile), 3);
System.out.println(lines);
System.out.println("GBK文件测试");
String gbkfile = path + "GBK.txt";
List<String> gbklines = FileUtil.lines(new File(gbkfile));
System.out.println(gbklines);
gbklines = FileUtil.lines(new File(gbkfile), "GBK");
System.out.println(gbklines);
System.out.println("读取文件的前3行");
lines = FileUtil.lines(new File(gbkfile), 3, "GBK");
System.out.println(lines);
System.out.println("UTF8文件测试");
String utf8file = path + "UTF8.txt";
List<String> utf8lines = FileUtil.lines(new File(utf8file));
System.out.println(utf8lines);
utf8lines = FileUtil.lines(new File(utf8file), "UTF-8");
System.out.println(utf8lines);
System.out.println("读取文件的前3行");
lines = FileUtil.lines(new File(utf8file), 3, "UTF-8");
System.out.println(lines);
}
@Test
public void testCleanFile() {
System.out.println("快速清空一个超大文件");
String clearFile = path + "GBKTOUTF8.txt";
FileUtil.cleanFile(new File(clearFile));
}
@Test
public void testCopy() throws Exception {
System.out.println("测试文件拷贝");
String copy = TestUtil.path + "GBKTOUTF8.txt";
String dest = TestUtil.path + "temp/GBKTOUTF8.txt";
FileUtil.copy(copy, dest);
}
@Test
public void testAppendLine() {
System.out.println("向文件中追加行");
String line1 = "E-String";
String line2 = "中文字符串";
File efile = new File(path + "EnglishWrite.txt");
File gbkfile = new File(path + "GBKWrite.txt");
File utf8file = new File(path + "UTF8Write.txt");
FileUtil.appendLine(efile, line1);
FileUtil.appendLine(efile, line2);
FileUtil.appendLine(efile, line1, "UTF-8");
FileUtil.appendLine(efile, line2, "UTF-8");
FileUtil.appendLine(gbkfile, line1);
FileUtil.appendLine(gbkfile, line2);
FileUtil.appendLine(gbkfile, line1, "GBK");
FileUtil.appendLine(gbkfile, line2, "GBK");
FileUtil.appendLine(utf8file, line1);
FileUtil.appendLine(utf8file, line2);
FileUtil.appendLine(utf8file, line1, "UTF-8");
FileUtil.appendLine(utf8file, line2, "UTF-8");
}
@Test
public void testDeleteFile() {
System.out.println("删除文件");
String delete = TestUtil.path + "temp/delete.txt";
FileUtil.deleteFile(new File(delete));
}
@Test
public void testDeleteBigFile() {
System.out.println("快速删除超大文件");
String delete = TestUtil.path + "temp/bigfile.txt";
FileUtil.deleteBigFile(new File(delete));
}
@Test
public void testCopyDir() {
FileUtil.copyDir(new File(TestUtil.path + "/image/"), path + "/temp/copy");
}
@Test
public void testCreateFiles() {
System.out.println("创建文件,支持多级目录");
String path = TestUtil.path + "temp/";
String file1 = path + "/test/test1.txt";
String file2 = path + "/test/test1/test.txt";
String file3 = path + "/test/test/";
FileUtil.createFiles(file1);
FileUtil.createFiles(file2);
FileUtil.createFiles(file3);
}
@Test
public void testDeleteDir() {
String path = TestUtil.path + "/temp/";
FileUtil.deleteDir(new File(path + "/test/"));
}
@Test
public void testCreatePath() {
System.out.println("创建文件夹,支持多级目录");
String path = TestUtil.path + "temp/";
String path1 = path + "/test/test2/";
String path2 = path + "/test/test3";
FileUtil.createPaths(path1);
FileUtil.createPaths(path2);
}
@Test
public void testSimpleEncoding() {
System.out.println("简单的利用文件头进行文件的编码探测!");
System.out.println(FileUtil.simpleEncoding(path + "GBK.txt"));
System.out.println("利用cpdetector进行文件编码探测");
}
@Test
public void testListFile() {
System.out.println("罗列指定目录下的所有文件");
String path = TestUtil.path + "temp/";
List<File> files = FileUtil.listFile(new File(path));
System.out.println(files);
List<File> files1 = FileUtil.listFile(path);
System.out.println(files1);
}
@Test
public void testListFile1() {
String path = TestUtil.path + "temp/";
List<File> files = FileUtil.listFile(path, false);
System.out.println(files);
System.out.println("=============");
files = FileUtil.listFile(path, true);
System.out.println(files);
}
@Test
public void testCopyDirs() {
System.out.println("复制文件夹");
String path = TestUtil.path + "/temp";
FileUtil.copyDir(path + "/test/", path + "/testcopy/");
}
@Test
public void testListFileFilter() {
System.out.println("罗列指定目录下的特定后缀的文件");
String path = TestUtil.path;
List<File> files = FileUtil.listFileFilter(new File(path), ".txt");
System.out.println(files);
}
@Test
public void testSearchFile() {
System.out.println("在指定的目录下搜索指定的文件");
List<File> files = FileUtil.searchFile(new File(TestUtil.path), "GBK.txt");
System.out.println(files);
}
@Test
public void testSearchReg() {
System.out.println("在指定的目录下搜索符合某正则的文件");
//匹配字母和数字组成的exe文件
String reg = "\\w{1,}\\.png$";
List<File> files = FileUtil.searchFileReg(new File(TestUtil.path), reg);
System.out.println(files);
}
@Test
public void testWriteFile() {
String path = TestUtil.path + "temp/";
String etemp = "Two roads diverged in a yellow wood,\n" +
"And sorry I could not travel both\n" +
"And be one traveler, long I stood\n" +
"And looked down one as far as I could\n" +
"To where it bent in the undergrowth;\n" +
"Then took the other, as just as fair,\n" +
"And having perhaps the better claim,\n" +
"Because it was grassy and wanted wear;\n" +
"Though as for that the passing there\n" +
"Had worn them really about the same,\n" +
"And both that morning equally layn" +
"In leaves no step had trodden black.\n" +
"Oh, I kept the first for another day!\n" +
"Yet knowing how way leads on to way,\n" +
"I doubted if I should ever come back.\n" +
"I shall be telling this with a sigh\n" +
"Somewhere ages and ages hence:\n" +
"Two roads diverged in a wood,and\n" +
"I took the one less traveled by,\n" +
"And that has made al lthe difference.";
String ctemp = "黄色的树林里分出两条路\n" +
"可惜我不能同时去涉足\n" +
"我在那路口久久伫立\n" +
"我向着一条路极目望去\n" +
"直到它消失在丛林深处\n" +
"但我却选择了另外一条路\n" +
"它荒草萋萋，十分幽寂 \n" +
"显得更诱人，更美丽 \n" +
"虽然在这两条小路上\n" +
"都很少留下旅人的足迹\n" +
"虽然那天清晨落叶满地\n" +
"两条路都未经脚印污染\n" +
"呵，留下一条路等改日再见\n" +
"但我知道路径延绵无尽头\n" +
"恐怕我难以再回返\n" +
"也许多少年后在某一个地方\n" +
"我将轻声叹息把往事回顾\n" +
" 一片森林里分出两条路\n" +
"而我却选择了人迹更少的一条\n" +
"从此决定了我一生的道路";
FileUtil.write(new File(path + "efile1.TXT"), etemp);
FileUtil.write(new File(path + "efile2.TXT"), etemp);
FileUtil.writeAppend(new File(path + "efile2.TXT"), etemp);
FileUtil.write(new File(path + "cfile1.TXT"), ctemp);
FileUtil.write(new File(path + "cfile2.TXT"), ctemp);
FileUtil.writeAppend(new File(path + "cfile2.TXT"), ctemp);
FileUtil.write(new File(path + "efile1_UTF8.TXT"), etemp, CharsetUtil.UTF_8);
FileUtil.write(new File(path + "efile2_UTF8.TXT"), etemp, CharsetUtil.UTF_8);
FileUtil.writeAppend(new File(path + "efile2_UTF8.TXT"), etemp, CharsetUtil.UTF_8);
FileUtil.write(new File(path + "cfile1_UTF8.TXT"), ctemp, CharsetUtil.UTF_8);
FileUtil.write(new File(path + "cfile2_UTF8.TXT"), ctemp, CharsetUtil.UTF_8);
FileUtil.writeAppend(new File(path + "cfile2_UTF8.TXT"), ctemp, CharsetUtil.UTF_8);
}
}