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.calcite.avatica.remote;
  
  import org.junit.Test;
  import org.mockito.Mockito;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.net.HttpURLConnection;
  import java.net.URI;
  import java.net.URL;
  import java.nio.charset.StandardCharsets;
  
  import static org.junit.Assert.assertArrayEquals;
  
  /**
   * Tests for the HTTP transport.
   */
  public class AvaticaHttpClientTest {
    private static final String REQUEST =
        "{\"request\":\"createStatement\",\"connectionId\":\"8f3f28ee-d0bb-4cdb-a4b1-8f6e8476c534\"}";
    private static final String RESPONSE =
        "{\"response\":\"createStatement\",\"connectionId\":"
            + "\"8f3f28ee-d0bb-4cdb-a4b1-8f6e8476c534\",\"statementId\":1608176856}";
  
    @Test
    public void testRetryOnUnavailable() throws Exception {
      // HTTP-503, try again
      URL url = new URI("http://127.0.0.1:8765").toURL();
      final HttpURLConnection cnxn = Mockito.mock(HttpURLConnection.class);
      ByteArrayOutputStream baos = new ByteArrayOutputStream();
      ByteArrayInputStream bais = new ByteArrayInputStream(RESPONSE.getBytes(StandardCharsets.UTF_8));
  
      // Create the HTTP client
      AvaticaHttpClientImpl client = new AvaticaHttpClientImpl(url) {
        @Override HttpURLConnection openConnection() throws IOException {
          return cnxn;
        }
      };
  
      // HTTP 503 then 200
      Mockito.when(cnxn.getResponseCode()).thenReturn(HttpURLConnection.HTTP_UNAVAILABLE,
          HttpURLConnection.HTTP_OK);
  
      Mockito.when(cnxn.getOutputStream()).thenReturn(baos);
      Mockito.when(cnxn.getInputStream()).thenReturn(bais);
  
      byte[] response = client.send(REQUEST.getBytes(StandardCharsets.UTF_8));
  
      assertArrayEquals(RESPONSE.getBytes(StandardCharsets.UTF_8), response);
    }
  
    @Test(expected = RuntimeException.class)
    public void testServerError() throws Exception {
      // HTTP 500 should error out
      URL url = new URI("http://127.0.0.1:8765").toURL();
      final HttpURLConnection cnxn = Mockito.mock(HttpURLConnection.class);
      ByteArrayOutputStream baos = new ByteArrayOutputStream();
  
      // Create the HTTP client
      AvaticaHttpClientImpl client = new AvaticaHttpClientImpl(url) {
        @Override HttpURLConnection openConnection() throws IOException {
          return cnxn;
        }
      };
  
      // HTTP 500
      Mockito.when(cnxn.getResponseCode()).thenReturn(HttpURLConnection.HTTP_INTERNAL_ERROR);
  
      Mockito.when(cnxn.getOutputStream()).thenReturn(baos);
  
      // Should throw an RTE
      client.send(REQUEST.getBytes(StandardCharsets.UTF_8));
    }
  
  }
  
  // End AvaticaHttpClientTest.java
  