/*
    * 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.maven.shared.utils;
  
  import java.io.ByteArrayInputStream;
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.io.UnsupportedEncodingException;
  import java.lang.annotation.ElementType;
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  import java.lang.annotation.Target;
  import java.net.URL;
  import java.util.Properties;
  
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TemporaryFolder;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.CoreMatchers.nullValue;
  import static org.hamcrest.MatcherAssert.assertThat;
  
  public class PropertyUtilsTest {
  
      @Retention(RetentionPolicy.RUNTIME)
      @Target(ElementType.METHOD)
      @interface NeedsTemporaryFolder {}
  
      @Rule
      public TemporaryFolder tempFolder = new TemporaryFolder();
  
      @Test
      @SuppressWarnings("deprecation")
      // @ReproducesPlexusBug( "Should return null on error like url and file do" )
      public void loadNullInputStream() throws Exception {
          assertThat(PropertyUtils.loadProperties((InputStream) null), is(new Properties()));
      }
  
      @Test
      public void loadOptionalNullInputStream() throws Exception {
          assertThat(PropertyUtils.loadOptionalProperties((InputStream) null), is(new Properties()));
      }
  
      @Test
      public void loadOptionalProperties_ioException() throws Exception {
          URL url = new URL("https://nonesuch12344.foo.bar.com");
          assertThat(PropertyUtils.loadOptionalProperties(url), is(new Properties()));
      }
  
      @Test
      @SuppressWarnings("deprecation")
      public void loadNullURL() throws Exception {
          assertThat(PropertyUtils.loadProperties((URL) null), nullValue(Properties.class));
      }
  
      @Test
      public void loadOptionalNullURL() throws Exception {
          assertThat(PropertyUtils.loadOptionalProperties((URL) null), is(new Properties()));
      }
  
      @Test
      @SuppressWarnings("deprecation")
      public void loadNullFile() throws Exception {
          assertThat(PropertyUtils.loadProperties((File) null), nullValue(Properties.class));
      }
  
      @Test
      public void loadOptionalNullFile() throws Exception {
          assertThat(PropertyUtils.loadOptionalProperties((File) null), is(new Properties()));
      }
  
      @Test
      @SuppressWarnings("deprecation")
      public void loadEmptyInputStream() throws Exception {
          assertThat(PropertyUtils.loadProperties(new ByteArrayInputStream(new byte[0])), is(new Properties()));
  
          assertThat(PropertyUtils.loadOptionalProperties(new ByteArrayInputStream(new byte[0])), is(new Properties()));
      }
  
     @Test
     @NeedsTemporaryFolder
     @SuppressWarnings("deprecation")
     public void loadEmptyFile() throws Exception {
         assertThat(PropertyUtils.loadProperties(tempFolder.newFile("empty")), is(new Properties()));
         assertThat(PropertyUtils.loadOptionalProperties(tempFolder.newFile("optional")), is(new Properties()));
     }
 
     @Test
     @NeedsTemporaryFolder
     @SuppressWarnings("deprecation")
     public void loadEmptyURL() throws Exception {
         assertThat(
                 PropertyUtils.loadProperties(tempFolder.newFile("empty").toURI().toURL()), is(new Properties()));
 
         assertThat(
                 PropertyUtils.loadOptionalProperties(
                         tempFolder.newFile("optional").toURI().toURL()),
                 is(new Properties()));
     }
 
     @Test
     @SuppressWarnings("deprecation")
     public void loadValidInputStream() throws UnsupportedEncodingException {
         Properties value = new Properties();
         value.setProperty("a", "b");
 
         assertThat(PropertyUtils.loadProperties(new ByteArrayInputStream("a=b".getBytes("ISO-8859-1"))), is(value));
 
         assertThat(
                 PropertyUtils.loadOptionalProperties(new ByteArrayInputStream("a=b".getBytes("ISO-8859-1"))),
                 is(value));
     }
 
     @Test
     @NeedsTemporaryFolder
     @SuppressWarnings("deprecation")
     public void loadValidFile() throws IOException {
         File valid = tempFolder.newFile("valid");
         Properties value = new Properties();
         value.setProperty("a", "b");
         try (OutputStream out = new FileOutputStream(valid)) {
             value.store(out, "a test");
             assertThat(PropertyUtils.loadProperties(valid), is(value));
             assertThat(PropertyUtils.loadOptionalProperties(valid), is(value));
         }
     }
 
     @Test
     @NeedsTemporaryFolder
     @SuppressWarnings("deprecation")
     public void loadValidURL() throws IOException {
         File valid = tempFolder.newFile("valid");
         Properties value = new Properties();
         value.setProperty("a", "b");
         try (OutputStream out = new FileOutputStream(valid)) {
             value.store(out, "a test");
             assertThat(PropertyUtils.loadProperties(valid.toURI().toURL()), is(value));
             assertThat(PropertyUtils.loadOptionalProperties(valid.toURI().toURL()), is(value));
         }
     }
 }