/*
    * 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.any23.configuration;
  
  import org.junit.After;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Test;
  
  /**
   * Test case for {@link Configuration} class.
   *
   * @author Michele Mostarda (michele.mostarda@gmail.com)
   */
  public class DefaultConfigurationTest {
  
      private Configuration configuration;
  
      @Before
      public void setUp() {
          configuration = DefaultConfiguration.singleton();
      }
  
      @After
      public void tearDown() {
          configuration = null;
      }
  
      @Test
      public void testSingletonAccessor() {
          final Configuration s1 = DefaultConfiguration.singleton();
          final Configuration s2 = DefaultConfiguration.singleton();
          Assert.assertTrue("Invalid singleton condition.", s1 == s2);
      }
  
      @Test
      public void testCopyAccessor() {
          final ModifiableConfiguration c1 = DefaultConfiguration.copy();
          final ModifiableConfiguration c2 = DefaultConfiguration.copy();
          Assert.assertTrue("Invalid copy condition.", c1 != c2);
      }
  
      @Test
      public void testCopyIsolation() {
          final String TARGET_PROPERTY = "any23.http.client.max.connections";
          final ModifiableConfiguration copy = DefaultConfiguration.copy();
          copy.setProperty(TARGET_PROPERTY, "100");
          Assert.assertEquals(DefaultConfiguration.singleton().getPropertyIntOrFail(TARGET_PROPERTY), 5);
          Assert.assertEquals(copy.getPropertyIntOrFail(TARGET_PROPERTY), 100);
      }
  
      @Test
      public void testModifiableConfigurationSuccess() {
          final String TARGET_PROPERTY = "any23.extraction.metadata.nesting";
          final ModifiableConfiguration modifiable = DefaultConfiguration.copy();
          final String oldValue = modifiable.setProperty(TARGET_PROPERTY, "off");
          Assert.assertEquals("on", oldValue);
          Assert.assertEquals("off", modifiable.getPropertyOrFail(TARGET_PROPERTY));
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testModifiableConfigurationFail() {
          final ModifiableConfiguration modifiable = DefaultConfiguration.copy();
          modifiable.setProperty("fake.property", "fake.value");
      }
  
      @Test
      public void testGetProperties() {
          final String[] properties = configuration.getProperties();
          Assert.assertTrue(properties.length > 6);
          for (String property : properties) {
              Assert.assertTrue(property.startsWith("any23."));
          }
      }
  
      @Test
      public void testDefineProperty() {
          Assert.assertTrue(configuration.defineProperty("any23.core.version"));
          Assert.assertFalse(configuration.defineProperty("any23.fake"));
      }
  
      @Test
      public void testGetProperty() {
          final String value1 = configuration.getProperty("any23.rdfa.extractor.xslt", null);
         Assert.assertEquals("rdfa.xslt", value1);
         final String value2 = configuration.getProperty("any23.fake", "fake.default");
         Assert.assertEquals("fake.default", value2);
     }
 
     @Test
     public void testGetPropertySysOverride() {
         System.setProperty("any23.rdfa.extractor.xslt", "fake.rdfa.xslt");
         try {
             final String value = configuration.getPropertyOrFail("any23.rdfa.extractor.xslt");
             Assert.assertEquals("fake.rdfa.xslt", value);
         } finally {
             System.clearProperty("any23.rdfa.extractor.xslt");
         }
     }
 
     @Test
     public void testGetPropertyOrFailOk() {
         final String value = configuration.getPropertyOrFail("any23.rdfa.extractor.xslt");
         Assert.assertEquals("rdfa.xslt", value);
     }
 
     @Test(expected = IllegalArgumentException.class)
     public void testGetPropertyOrFailNok() {
         configuration.getPropertyOrFail("any23.fake");
     }
 
     @Test
     public void testGetPropertyIntOrFailOk() {
         final int value = configuration.getPropertyIntOrFail("any23.http.client.timeout");
         Assert.assertEquals(10000, value);
     }
 
     @Test(expected = NumberFormatException.class)
     public void testGetPropertyIntOrFailNok() {
         configuration.getPropertyIntOrFail("any23.http.user.agent.default");
     }
 
     @Test
     public void testGetFlagProperty() {
         Assert.assertTrue(configuration.getFlagProperty("any23.extraction.metadata.nesting"));
     }
 
 }