/*
    * 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.util;
  
  import static org.eclipse.jgit.util.QuotedString.BOURNE;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotSame;
  
  import org.eclipse.jgit.lib.Constants;
  import org.junit.Test;
  
  public class QuotedStringBourneStyleTest {
  	private static void assertQuote(String in, String exp) {
  		final String r = BOURNE.quote(in);
  		assertNotSame(in, r);
  		assertFalse(in.equals(r));
  		assertEquals('\'' + exp + '\'', r);
  	}
  
  	private static void assertDequote(String exp, String in) {
  		final byte[] b = Constants.encode('\'' + in + '\'');
  		final String r = BOURNE.dequote(b, 0, b.length);
  		assertEquals(exp, r);
  	}
  
  	@Test
  	public void testQuote_Empty() {
  		assertEquals("''", BOURNE.quote(""));
  	}
  
  	@Test
  	public void testDequote_Empty1() {
  		assertEquals("", BOURNE.dequote(new byte[0], 0, 0));
  	}
  
  	@Test
  	public void testDequote_Empty2() {
  		assertEquals("", BOURNE.dequote(new byte[] { '\'', '\'' }, 0, 2));
  	}
  
  	@Test
  	public void testDequote_SoleSq() {
  		assertEquals("", BOURNE.dequote(new byte[] { '\'' }, 0, 1));
  	}
  
  	@Test
  	public void testQuote_BareA() {
  		assertQuote("a", "a");
  	}
  
  	@Test
  	public void testDequote_BareA() {
  		final String in = "a";
  		final byte[] b = Constants.encode(in);
  		assertEquals(in, BOURNE.dequote(b, 0, b.length));
  	}
  
  	@Test
  	public void testDequote_BareABCZ_OnlyBC() {
  		final String in = "abcz";
  		final byte[] b = Constants.encode(in);
  		final int p = in.indexOf('b');
  		assertEquals("bc", BOURNE.dequote(b, p, p + 2));
  	}
  
  	@Test
  	public void testDequote_LoneBackslash() {
  		assertDequote("\\", "\\");
  	}
  
  	@Test
  	public void testQuote_NamedEscapes() {
  		assertQuote("'", "'\\''");
  		assertQuote("!", "'\\!'");
  
  		assertQuote("a'b", "a'\\''b");
  		assertQuote("a!b", "a'\\!'b");
  	}
  
  	@Test
  	public void testDequote_NamedEscapes() {
  		assertDequote("'", "'\\''");
  		assertDequote("!", "'\\!'");
  
  		assertDequote("a'b", "a'\\''b");
  		assertDequote("a!b", "a'\\!'b");
  	}
  }