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.calcite.linq4j.test;
  
  import org.apache.calcite.linq4j.Linq4j;
  import org.apache.calcite.linq4j.Lookup;
  
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /**
   * Unit tests for {@link Lookup} and {@code LookupImpl}.
   */
  class LookupImplTest {
  
    private Lookup<Integer, String> impl;
  
    @BeforeEach
    public void setUp() {
      impl =
          Linq4j.asEnumerable(Linq4jTest.emps)
              .toLookup(Linq4jTest.EMP_DEPTNO_SELECTOR,
                  Linq4jTest.EMP_NAME_SELECTOR);
    }
  
    @Test void testPut() {
      int initSize = impl.size();
      impl.put(99, Linq4j.asEnumerable(new String[]{"A", "B"}));
      assertTrue(impl.containsKey(99));
      assertThat(impl.size() - 1, is(initSize));
    }
  
    @Test void testContainsValue() {
      List<String> list = new ArrayList<>();
      list.add("C");
      list.add("D");
      List<String> list2 = new ArrayList<>(list);
      impl.put(100, Linq4j.asEnumerable(list));
      assertTrue(impl.containsValue(list));
      assertTrue(impl.containsValue(list2));
    }
  }
  