/*
    * Copyright (C) 2008, Google Inc. and others
    *
    * This program and the accompanying materials are made available under the
    * terms of the Eclipse Distribution License v. 1.0 which is available at
    * https://www.eclipse.org/org/documents/edl-v10.php.
    *
    * SPDX-License-Identifier: BSD-3-Clause
    */
  
  package org.eclipse.jgit.lib;
  
  import static org.junit.Assert.assertArrayEquals;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.fail;
  
  import java.io.UnsupportedEncodingException;
  
  import org.junit.Test;
  
  public class ConstantsEncodingTest {
  	@Test
  	public void testEncodeASCII_SimpleASCII()
  			throws UnsupportedEncodingException {
  		final String src = "abc";
  		final byte[] exp = { 'a', 'b', 'c' };
  		final byte[] res = Constants.encodeASCII(src);
  		assertArrayEquals(exp, res);
  		assertEquals(src, new String(res, 0, res.length, "UTF-8"));
  	}
  
  	@Test
  	public void testEncodeASCII_FailOnNonASCII() {
  		final String src = "Ūnĭcōde̽";
  		try {
  			Constants.encodeASCII(src);
  			fail("Incorrectly accepted a Unicode character");
  		} catch (IllegalArgumentException err) {
  			assertEquals("Not ASCII string: " + src, err.getMessage());
  		}
  	}
  
  	@Test
  	public void testEncodeASCII_Number13() {
  		final long src = 13;
  		final byte[] exp = { '1', '3' };
  		final byte[] res = Constants.encodeASCII(src);
  		assertArrayEquals(exp, res);
  	}
  
  	@Test
  	public void testEncode_SimpleASCII() throws UnsupportedEncodingException {
  		final String src = "abc";
  		final byte[] exp = { 'a', 'b', 'c' };
  		final byte[] res = Constants.encode(src);
  		assertArrayEquals(exp, res);
  		assertEquals(src, new String(res, 0, res.length, "UTF-8"));
  	}
  
  	@Test
  	public void testEncode_Unicode() throws UnsupportedEncodingException {
  		final String src = "Ūnĭcōde̽";
  		final byte[] exp = { (byte) 0xC5, (byte) 0xAA, 0x6E, (byte) 0xC4,
  				(byte) 0xAD, 0x63, (byte) 0xC5, (byte) 0x8D, 0x64, 0x65,
  				(byte) 0xCC, (byte) 0xBD };
  		final byte[] res = Constants.encode(src);
  		assertArrayEquals(exp, res);
  		assertEquals(src, new String(res, 0, res.length, "UTF-8"));
  	}
  }