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.ambari.server.collections.functors;
  
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.easymock.EasyMockSupport;
  import org.junit.Test;
  
  import junit.framework.Assert;
  
  public class ContextTransformerTest extends EasyMockSupport {
  
    @Test
    public void testGetKey() {
      ContextTransformer transformer = new ContextTransformer("key");
      Assert.assertEquals("key", transformer.getKey());
    }
  
    @Test
    public void testTransformSimple() {
      Map<String, Object> context = new HashMap<>();
      context.put("key", "value");
      context.put("key1", "value1");
      context.put("key2", "value2");
  
      ContextTransformer transformer = new ContextTransformer("key");
      Assert.assertEquals("value", transformer.transform(context));
    }
  
    @Test
    public void testTransformTree() {
      Map<String, Object> serviceSite = new HashMap<>();
      serviceSite.put("property", "service-site-property");
  
      Map<String, Object> configurations = new HashMap<>();
      configurations.put("service-site", serviceSite);
      configurations.put("property", "configuration-property");
  
      Map<String, Object> context = new HashMap<>();
      context.put("configurations", configurations);
      context.put("property", "context-property");
  
      ContextTransformer transformer;
  
      // Without leading "/"
      transformer = new ContextTransformer("configurations/service-site/property");
      Assert.assertEquals("service-site-property", transformer.transform(context));
  
      // With leading "/"
      transformer = new ContextTransformer("/configurations/service-site/property");
      Assert.assertEquals("service-site-property", transformer.transform(context));
  
      // Get map of properties
      transformer = new ContextTransformer("/configurations/service-site");
      Assert.assertEquals(serviceSite, transformer.transform(context));
    }
  }