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.http.client.request;
  
  import com.alibaba.nacos.common.http.HttpClientConfig;
  import com.alibaba.nacos.common.http.HttpUtils;
  import com.alibaba.nacos.common.http.client.response.HttpClientResponse;
  import com.alibaba.nacos.common.http.param.Header;
  import com.alibaba.nacos.common.http.param.MediaType;
  import com.alibaba.nacos.common.http.param.Query;
  import com.alibaba.nacos.common.model.RequestHttpEntity;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.Mock;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.mockito.junit.jupiter.MockitoSettings;
  import org.mockito.quality.Strictness;
  
  import java.io.OutputStream;
  import java.lang.reflect.Field;
  import java.net.HttpURLConnection;
  import java.net.URI;
  import java.net.URL;
  import java.nio.charset.StandardCharsets;
  import java.util.HashMap;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyInt;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.never;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(MockitoExtension.class)
  // todo remove this
  @MockitoSettings(strictness = Strictness.LENIENT)
  class JdkHttpClientRequestTest {
      
      JdkHttpClientRequest httpClientRequest;
      
      @Mock
      private HttpURLConnection connection;
      
      @Mock
      private URI uri;
      
      @Mock
      private URL url;
      
      @Mock
      private OutputStream outputStream;
      
      private HttpClientConfig httpClientConfig;
      
      @BeforeEach
      void setUp() throws Exception {
          when(uri.toURL()).thenReturn(url);
          when(url.openConnection()).thenReturn(connection);
          when(connection.getOutputStream()).thenReturn(outputStream);
          httpClientConfig = HttpClientConfig.builder().build();
          httpClientRequest = new JdkHttpClientRequest(httpClientConfig);
      }
      
      @AfterEach
      void tearDown() throws Exception {
          httpClientRequest.close();
      }
      
      @Test
      void testExecuteNormal() throws Exception {
          Header header = Header.newInstance();
          HttpClientConfig config = HttpClientConfig.builder().build();
          RequestHttpEntity httpEntity = new RequestHttpEntity(config, header, Query.EMPTY, "a=bo&dy");
          HttpClientResponse response = httpClientRequest.execute(uri, "GET", httpEntity);
          byte[] writeBytes = "a=bo&dy".getBytes(StandardCharsets.UTF_8);
          verify(outputStream).write(writeBytes, 0, writeBytes.length);
          assertEquals(connection, getActualConnection(response));
      }
      
      @Test
      void testExecuteForm() throws Exception {
          Header header = Header.newInstance();
          header.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
          HttpClientConfig config = HttpClientConfig.builder().build();
          Map<String, String> body = new HashMap<>();
          body.put("a", "bo&dy");
          RequestHttpEntity httpEntity = new RequestHttpEntity(config, header, Query.EMPTY, body);
          HttpClientResponse response = httpClientRequest.execute(uri, "GET", httpEntity);
          byte[] writeBytes = HttpUtils.encodingParams(body, StandardCharsets.UTF_8.name()).getBytes(StandardCharsets.UTF_8);
          verify(outputStream).write(writeBytes, 0, writeBytes.length);
          assertEquals(connection, getActualConnection(response));
      }
      
      @Test
      void testExecuteEmptyBody() throws Exception {
          Header header = Header.newInstance();
          RequestHttpEntity httpEntity = new RequestHttpEntity(header, Query.EMPTY);
          HttpClientResponse response = httpClientRequest.execute(uri, "GET", httpEntity);
          verify(outputStream, never()).write(any(), eq(0), anyInt());
          assertEquals(connection, getActualConnection(response));
          
      }
      
      private HttpURLConnection getActualConnection(HttpClientResponse actual) throws IllegalAccessException, NoSuchFieldException {
          Field field = actual.getClass().getDeclaredField("conn");
          field.setAccessible(true);
          return (HttpURLConnection) field.get(actual);
      }
  }