content: // Protocol Buffers - Google's data interchange format
  // Copyright 2008 Google Inc.  All rights reserved.
  // https://developers.google.com/protocol-buffers/
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  //
  //     * Redistributions of source code must retain the above copyright
  // notice, this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above
  // copyright notice, this list of conditions and the following disclaimer
  // in the documentation and/or other materials provided with the
  // distribution.
  //     * Neither the name of Google Inc. nor the names of its
  // contributors may be used to endorse or promote products derived from
  // this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  package com.google.protobuf;
  
  import junit.framework.TestCase;
  
  /** Test @{link TextFormatParseLocation}. */
  public class TextFormatParseLocationTest extends TestCase {
  
    public void testCreateEmpty() {
      TextFormatParseLocation location = TextFormatParseLocation.create(-1, -1);
      assertEquals(TextFormatParseLocation.EMPTY, location);
    }
  
    public void testCreate() {
      TextFormatParseLocation location = TextFormatParseLocation.create(2, 1);
      assertEquals(2, location.getLine());
      assertEquals(1, location.getColumn());
    }
  
    public void testCreateThrowsIllegalArgumentExceptionForInvalidIndex() {
      try {
        TextFormatParseLocation.create(-1, 0);
        fail("Should throw IllegalArgumentException if line is less than 0");
      } catch (IllegalArgumentException unused) {
        // pass
      }
      try {
        TextFormatParseLocation.create(0, -1);
        fail("Should throw, column < 0");
      } catch (IllegalArgumentException unused) {
        // pass
      }
    }
  
    public void testHashCode() {
      TextFormatParseLocation loc0 = TextFormatParseLocation.create(2, 1);
      TextFormatParseLocation loc1 = TextFormatParseLocation.create(2, 1);
  
      assertEquals(loc0.hashCode(), loc1.hashCode());
      assertEquals(
          TextFormatParseLocation.EMPTY.hashCode(), TextFormatParseLocation.EMPTY.hashCode());
    }
  
    public void testEquals() {
      TextFormatParseLocation loc0 = TextFormatParseLocation.create(2, 1);
      TextFormatParseLocation loc1 = TextFormatParseLocation.create(1, 2);
      TextFormatParseLocation loc2 = TextFormatParseLocation.create(2, 2);
      TextFormatParseLocation loc3 = TextFormatParseLocation.create(2, 1);
  
      assertEquals(loc0, loc3);
      assertNotSame(loc0, loc1);
      assertNotSame(loc0, loc2);
      assertNotSame(loc1, loc2);
    }
  }
  