package edu.jiangxin.encode;
   
   import java.io.File;
   import java.io.IOException;
   
   import org.junit.jupiter.api.Test;
   
   import edu.jiangxin.apktoolbox.file.core.EncoderConvert;
   import edu.jiangxin.apktoolbox.file.core.EncoderDetector;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /**
   * @author jiangxin
   * @author 2018-09-09
   *
   */
  public class EncoderConvertTest {
  
      // 测试文件如果太小可能无法准确判断编码
      // GB2312、GBK、GB18030的关系可以参考: <https://www.zhihu.com/question/19677619>
      String path = EncoderConvertTest.class.getResource("/EncoderConvertTest").getPath();
  
      @Test
      public void testDetectEncode01() {
          assertTrue(new File(path, "UTF-8.txt").exists());
          assertEquals("UTF-8", EncoderDetector.judgeFile(path + File.separator + "UTF-8.txt"));
      }
  
      @Test
      public void testDetectEncode02() {
          assertTrue(new File(path, "GB2312.txt").exists());
          String encode = EncoderDetector.judgeFile(path + File.separator + "GB2312.txt");
          assertTrue("GB2312".equals(encode) || "GBK".equals(encode) || "GB18030".equals(encode));
      }
  
      @Test
      public void testEncodeFile() throws IOException {
          EncoderConvert.encodeFile(path + File.separator + "UTF-8.txt", "UTF-8",
                  path + File.separator + "UTF-8_TO_GB2312.txt", "GBK");
          assertTrue(new File(path, "UTF-8_TO_GB2312.txt").exists());
          String encode = EncoderDetector.judgeFile(path + File.separator + "UTF-8_TO_GB2312.txt");
          assertTrue("GB2312".equals(encode) || "GBK".equals(encode) || "GB18030".equals(encode));
      }
  
      @Test
      public void testEncodeDir() throws IOException {
          File srcDir = new File(path, "test");
          assertTrue(srcDir.exists());
          File[] srcFileList = srcDir.listFiles();
          for (File f : srcFileList) {
              assertEquals("UTF-8",
                      EncoderDetector.judgeFile(path + File.separator + "test" + File.separator + f.getName()));
          }
  
          EncoderConvert.encodeDir(path + File.separator + "test", "UTF-8", path + File.separator + "testResult",
                  "GB2312");
          File desDir = new File(path, "testResult");
          assertTrue(desDir.exists());
          File[] desFileList = desDir.listFiles();
          for (File f : desFileList) {
              String encode = EncoderDetector.judgeFile(desDir.getPath() + File.separator + f.getName());
              assertTrue("GB2312".equals(encode) || "GBK".equals(encode) || "GB18030".equals(encode));
          }
      }
  
  }