/*
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    * 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
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   */
  package org.apache.hc.core5.http2.frame;
  
  import java.nio.ByteBuffer;
  import java.nio.charset.StandardCharsets;
  
  import org.apache.hc.core5.http2.H2Error;
  import org.apache.hc.core5.http2.config.H2Param;
  import org.apache.hc.core5.http2.config.H2Setting;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  public class TestDefaultFrameFactory {
  
      @Test
      public void testDataFrame() throws Exception {
  
          final FrameFactory frameFactory = new DefaultFrameFactory();
  
          final byte[] data = new byte[]{'a', 'b', 'c', 'd', 'e', 'f'};
          final Frame<ByteBuffer> dataFrame = frameFactory.createData(23, ByteBuffer.wrap(data), true);
  
          Assertions.assertEquals(FrameType.DATA.value, dataFrame.getType());
          Assertions.assertEquals(23, dataFrame.getStreamId());
          Assertions.assertEquals(1L, dataFrame.getFlags());
      }
  
      @Test
      public void testSettingFrame() throws Exception {
  
          final FrameFactory frameFactory = new DefaultFrameFactory();
          final Frame<ByteBuffer> settingsFrame = frameFactory.createSettings(
                  new H2Setting(H2Param.HEADER_TABLE_SIZE, 1024),
                  new H2Setting(H2Param.MAX_CONCURRENT_STREAMS, 1));
  
          Assertions.assertEquals(FrameType.SETTINGS.value, settingsFrame.getType());
          Assertions.assertEquals(0, settingsFrame.getStreamId());
          Assertions.assertEquals(0, settingsFrame.getFlags());
          final ByteBuffer payload = settingsFrame.getPayload();
          Assertions.assertNotNull(payload);
          Assertions.assertEquals(12, payload.remaining());
      }
  
      @Test
      public void testResetStreamFrame() throws Exception {
  
          final FrameFactory frameFactory = new DefaultFrameFactory();
          final Frame<ByteBuffer> rstStreamFrame = frameFactory.createResetStream(12, H2Error.INTERNAL_ERROR);
  
          Assertions.assertEquals(FrameType.RST_STREAM.value, rstStreamFrame.getType());
          Assertions.assertEquals(12, rstStreamFrame.getStreamId());
          Assertions.assertEquals(0, rstStreamFrame.getFlags());
          final ByteBuffer payload = rstStreamFrame.getPayload();
          Assertions.assertNotNull(payload);
          Assertions.assertEquals(4, payload.remaining());
          Assertions.assertEquals(H2Error.INTERNAL_ERROR.getCode(), payload.getInt());
      }
  
      @Test
      public void testGoAwayFrame() throws Exception {
  
          final FrameFactory frameFactory = new DefaultFrameFactory();
          final Frame<ByteBuffer> goAwayFrame = frameFactory.createGoAway(13, H2Error.INTERNAL_ERROR, "Oopsie");
  
          Assertions.assertEquals(FrameType.GOAWAY.value, goAwayFrame.getType());
          Assertions.assertEquals(0, goAwayFrame.getStreamId());
          Assertions.assertEquals(0, goAwayFrame.getFlags());
          final ByteBuffer payload = goAwayFrame.getPayload();
          Assertions.assertNotNull(payload);
          Assertions.assertEquals(13, payload.getInt());
          Assertions.assertEquals(H2Error.INTERNAL_ERROR.getCode(), payload.getInt());
          final byte[] tmp = new byte[payload.remaining()];
          payload.get(tmp);
          Assertions.assertEquals("Oopsie", new String(tmp, StandardCharsets.US_ASCII));
     }
 
 }