content: /*
   * Copyright 1999-2023 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.nacos.common.utils;
  
  import org.junit.jupiter.api.Test;
  
  import java.io.File;
  import java.io.FileNotFoundException;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.Reader;
  import java.net.URL;
  import java.util.Properties;
  
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  class ResourceUtilsTest {
      
      @Test
      void testGetResourceUrlForClasspath() throws IOException {
          URL url = ResourceUtils.getResourceUrl("classpath:test-tls-cert.pem");
          assertNotNull(url);
      }
      
      @Test
      void testGetResourceUrlForClasspathNotExists() throws IOException {
          assertThrows(FileNotFoundException.class, () -> {
              ResourceUtils.getResourceUrl("classpath:non-exist.pem");
          });
      }
      
      @Test
      void testGetResourceUrlForFile() throws IOException {
          File file = File.createTempFile("test", ".txt");
          try {
              URL url = ResourceUtils.getResourceUrl("file://" + file.getPath());
              assertNotNull(url);
          } finally {
              file.deleteOnExit();
          }
      }
      
      @Test
      void testGetResourceUrlForFileWithoutProtocol() throws IOException {
          File file = File.createTempFile("test", ".txt");
          try {
              URL url = ResourceUtils.getResourceUrl(file.getPath());
              assertNotNull(url);
          } finally {
              file.deleteOnExit();
          }
      }
      
      @Test
      void testGetResourceUrlFromLoader() throws IOException {
          URL url = ResourceUtils.getResourceUrl(this.getClass().getClassLoader(), "test-tls-cert.pem");
          assertNotNull(url);
      }
      
      @Test
      void testGetResourceUrlFromSystemLoader() throws IOException {
          URL url = ResourceUtils.getResourceUrl(null, "test-tls-cert.pem");
          assertNotNull(url);
      }
      
      @Test
      void testGetResourceUrlFromLoaderWithoutExist() throws IOException {
          assertThrows(IOException.class, () -> {
              URL url = ResourceUtils.getResourceUrl(null, "non-exist");
              assertNotNull(url);
          });
      }
      
      @Test
      void testGetResourceAsStreamForClasspath() throws IOException {
          try (InputStream inputStream = ResourceUtils.getResourceAsStream("test-tls-cert.pem")) {
              assertNotNull(inputStream);
          }
      }
      
      @Test
      void testGetResourceAsStreamForClasspathFromSystem() throws IOException {
          try (InputStream inputStream = ResourceUtils.getResourceAsStream(null, "test-tls-cert.pem")) {
              assertNotNull(inputStream);
          }
      }
      
      @Test
      void testGetResourceAsStreamForClasspathWithoutExist() throws IOException {
          assertThrows(IOException.class, () -> {
              URL url = ResourceUtils.getResourceUrl("non-exist");
              ResourceUtils.getResourceAsStream(null, url.toString());
          });
      }
      
      @Test
      void testGetResourceAsPropertiesForClasspath() throws IOException {
          Properties properties = ResourceUtils.getResourceAsProperties("resource_utils_test.properties");
          assertNotNull(properties);
          assertTrue(properties.containsKey("a"));
      }
      
      @Test
      void testGetResourceAsReader() throws IOException {
          try (Reader reader = ResourceUtils.getResourceAsReader("resource_utils_test.properties", "UTF-8")) {
              assertNotNull(reader);
          }
      }
      
      @Test
      void testGetResourceAsReaderWithLoader() throws IOException {
          try (Reader reader = ResourceUtils.getResourceAsReader(ResourceUtilsTest.class.getClassLoader(),
                  "resource_utils_test.properties", "UTF-8")) {
              assertNotNull(reader);
          }
      }
      
      @Test
      void testGetResourceAsFile() throws IOException {
          File file = ResourceUtils.getResourceAsFile("classpath:resource_utils_test.properties");
          assertNotNull(file);
      }
      
      @Test
      void testGetResourceAsFileByUrl() throws IOException {
          File file = ResourceUtils.getResourceAsFile(ResourceUtils.getResourceUrl("classpath:resource_utils_test.properties"));
          assertNotNull(file);
      }
      
      @Test
      void testGetResourceAsFileByLoader() throws IOException {
          File file = ResourceUtils.getResourceAsFile(ResourceUtils.class.getClassLoader(), "resource_utils_test.properties");
          assertNotNull(file);
      }
  }