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
   *
   *    http://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.kafka.trogdor.common;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.HashSet;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  @Timeout(value = 120)
  public class StringExpanderTest {
  
      @Test
      public void testNoExpansionNeeded() {
          assertEquals(Collections.singleton("foo"), StringExpander.expand("foo"));
          assertEquals(Collections.singleton("bar"), StringExpander.expand("bar"));
          assertEquals(Collections.singleton(""), StringExpander.expand(""));
      }
  
      @Test
      public void testExpansions() {
          HashSet<String> expected1 = new HashSet<>(Arrays.asList(
              "foo1",
              "foo2",
              "foo3"
          ));
          assertEquals(expected1, StringExpander.expand("foo[1-3]"));
  
          HashSet<String> expected2 = new HashSet<>(Arrays.asList(
              "foo bar baz 0"
          ));
          assertEquals(expected2, StringExpander.expand("foo bar baz [0-0]"));
  
          HashSet<String> expected3 = new HashSet<>(Arrays.asList(
              "[[ wow50 ]]",
              "[[ wow51 ]]",
              "[[ wow52 ]]"
          ));
          assertEquals(expected3, StringExpander.expand("[[ wow[50-52] ]]"));
  
          HashSet<String> expected4 = new HashSet<>(Arrays.asList(
              "foo1bar",
              "foo2bar",
              "foo3bar"
          ));
          assertEquals(expected4, StringExpander.expand("foo[1-3]bar"));
  
          // should expand latest range first
          HashSet<String> expected5 = new HashSet<>(Arrays.asList(
              "start[1-3]middle1epilogue",
              "start[1-3]middle2epilogue",
              "start[1-3]middle3epilogue"
          ));
          assertEquals(expected5, StringExpander.expand("start[1-3]middle[1-3]epilogue"));
      }
  }
  