code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC 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.openqa.selenium.grid.config;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  import com.google.common.collect.ImmutableMap;
  import com.google.common.collect.ImmutableSet;
  import org.junit.jupiter.api.Test;
  
  class ConcatenatingConfigTest {
  
    @Test
    void shouldReturnSectionNames() {
      Config config =
          new ConcatenatingConfig(
              "FOO",
              '_',
              ImmutableMap.of(
                  "FOO_CHEESE_SELECTED", "brie",
                  "FOO_CHEESE_CURRENT", "cheddar",
                  "FOO_VEGETABLES_GREEN", "peas",
                  "FOO_", "should not show up",
                  "BAR_FOOD_IS", "cheese sticks"));
  
      assertThat(config.getSectionNames()).isEqualTo(ImmutableSet.of("cheese", "vegetables"));
    }
  
    @Test
    void shouldReturnOptionNamesInSection() {
      Config config =
          new ConcatenatingConfig(
              "FOO",
              '_',
              ImmutableMap.of(
                  "FOO_CHEESE_SELECTED", "brie",
                  "FOO_CHEESE_CURRENT", "cheddar",
                  "FOO_VEGETABLES_GREEN", "peas",
                  "FOO_", "should not show up",
                  "BAR_FOOD_IS", "cheese sticks"));
  
      assertThat(config.getOptions("cheese")).isEqualTo(ImmutableSet.of("current", "selected"));
    }
  }
  