/*
    * 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.commons.lang3.text;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Properties;
  
  import org.apache.commons.lang3.AbstractLangTest;
  import org.junit.jupiter.api.Test;
  
  /**
   * Test class for StrLookup.
   */
  @Deprecated
  public class StrLookupTest extends AbstractLangTest {
  
      @Test
      public void testMapLookup() {
          final Map<String, Object> map = new HashMap<>();
          map.put("key", "value");
          map.put("number", Integer.valueOf(2));
          assertEquals("value", StrLookup.mapLookup(map).lookup("key"));
          assertEquals("2", StrLookup.mapLookup(map).lookup("number"));
          assertNull(StrLookup.mapLookup(map).lookup(null));
          assertNull(StrLookup.mapLookup(map).lookup(""));
          assertNull(StrLookup.mapLookup(map).lookup("other"));
      }
  
      @Test
      public void testMapLookup_nullMap() {
          final Map<String, ?> map = null;
          assertNull(StrLookup.mapLookup(map).lookup(null));
          assertNull(StrLookup.mapLookup(map).lookup(""));
          assertNull(StrLookup.mapLookup(map).lookup("any"));
      }
  
      @Test
      public void testNoneLookup() {
          assertNull(StrLookup.noneLookup().lookup(null));
          assertNull(StrLookup.noneLookup().lookup(""));
          assertNull(StrLookup.noneLookup().lookup("any"));
      }
  
      @Test
      public void testSystemPropertiesLookup() {
          assertEquals(System.getProperty("os.name"), StrLookup.systemPropertiesLookup().lookup("os.name"));
          assertNull(StrLookup.systemPropertiesLookup().lookup(""));
          assertNull(StrLookup.systemPropertiesLookup().lookup("other"));
          assertNull(StrLookup.systemPropertiesLookup().lookup(null));
      }
  
      /**
       * Tests that a lookup object for system properties can deal with a full
       * replacement of the system properties object. This test is related to
       * LANG-1055.
       */
      @Test
      public void testSystemPropertiesLookupReplacedProperties() {
          final Properties oldProperties = System.getProperties();
          final String osName = "os.name";
          final String newOsName = oldProperties.getProperty(osName) + "_changed";
  
          final StrLookup<String> sysLookup = StrLookup.systemPropertiesLookup();
          final Properties newProps = new Properties();
          newProps.setProperty(osName, newOsName);
          System.setProperties(newProps);
          try {
              assertEquals(newOsName, sysLookup.lookup(osName), "Changed properties not detected");
          } finally {
              System.setProperties(oldProperties);
          }
      }
  
      /**
       * Tests that a lookup object for system properties sees changes on system
       * properties. This test is related to LANG-1141.
       */
      @Test
      public void testSystemPropertiesLookupUpdatedProperty() {
          final String osName = "os.name";
         final String oldOs = System.getProperty(osName);
         final String newOsName = oldOs + "_changed";
 
         final StrLookup<String> sysLookup = StrLookup.systemPropertiesLookup();
         System.setProperty(osName, newOsName);
         try {
             assertEquals(newOsName, sysLookup.lookup(osName), "Changed properties not detected");
         } finally {
             System.setProperty(osName, oldOs);
         }
     }
 
 }