content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
   * implied.  See the License for the specific language governing
   * permissions and limitations under the License.
   */
  
  package org.apache.avro.hadoop.util;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.*;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.apache.avro.util.Utf8;
  
  public class TestAvroCharSequenceComparator {
    private AvroCharSequenceComparator<CharSequence> mComparator;
  
    @BeforeEach
    public void setup() {
      mComparator = new AvroCharSequenceComparator<>();
    }
  
    @Test
    void compareString() {
      assertEquals(0, mComparator.compare("", ""));
      assertThat(mComparator.compare("", "a"), lessThan(0));
      assertThat(mComparator.compare("a", ""), greaterThan(0));
  
      assertEquals(0, mComparator.compare("a", "a"));
      assertThat(mComparator.compare("a", "b"), lessThan(0));
      assertThat(mComparator.compare("b", "a"), greaterThan(0));
  
      assertEquals(0, mComparator.compare("ab", "ab"));
      assertThat(mComparator.compare("a", "aa"), lessThan(0));
      assertThat(mComparator.compare("aa", "a"), greaterThan(0));
  
      assertThat(mComparator.compare("abc", "abcdef"), lessThan(0));
      assertThat(mComparator.compare("abcdef", "abc"), greaterThan(0));
    }
  
    @Test
    void compareUtf8() {
      assertEquals(0, mComparator.compare(new Utf8(""), new Utf8("")));
      assertThat(mComparator.compare(new Utf8(""), new Utf8("a")), lessThan(0));
      assertThat(mComparator.compare(new Utf8("a"), new Utf8("")), greaterThan(0));
  
      assertEquals(0, mComparator.compare(new Utf8("a"), new Utf8("a")));
      assertThat(mComparator.compare(new Utf8("a"), new Utf8("b")), lessThan(0));
      assertThat(mComparator.compare(new Utf8("b"), new Utf8("a")), greaterThan(0));
  
      assertEquals(0, mComparator.compare(new Utf8("ab"), new Utf8("ab")));
      assertThat(mComparator.compare(new Utf8("a"), new Utf8("aa")), lessThan(0));
      assertThat(mComparator.compare(new Utf8("aa"), new Utf8("a")), greaterThan(0));
  
      assertThat(mComparator.compare(new Utf8("abc"), new Utf8("abcdef")), lessThan(0));
      assertThat(mComparator.compare(new Utf8("abcdef"), new Utf8("abc")), greaterThan(0));
    }
  
    @Test
    void compareUtf8ToString() {
      assertEquals(0, mComparator.compare(new Utf8(""), ""));
      assertThat(mComparator.compare(new Utf8(""), "a"), lessThan(0));
      assertThat(mComparator.compare(new Utf8("a"), ""), greaterThan(0));
  
      assertEquals(0, mComparator.compare(new Utf8("a"), "a"));
      assertThat(mComparator.compare(new Utf8("a"), "b"), lessThan(0));
      assertThat(mComparator.compare(new Utf8("b"), "a"), greaterThan(0));
  
      assertEquals(0, mComparator.compare(new Utf8("ab"), "ab"));
      assertThat(mComparator.compare(new Utf8("a"), "aa"), lessThan(0));
      assertThat(mComparator.compare(new Utf8("aa"), "a"), greaterThan(0));
  
      assertThat(mComparator.compare(new Utf8("abc"), "abcdef"), lessThan(0));
      assertThat(mComparator.compare(new Utf8("abcdef"), "abc"), greaterThan(0));
    }
  }
  