code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC 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.openqa.selenium.netty.server;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.openqa.selenium.remote.http.HttpMethod.GET;
  
  import io.netty.channel.embedded.EmbeddedChannel;
  import io.netty.handler.codec.http.DefaultFullHttpRequest;
  import io.netty.handler.codec.http.FullHttpRequest;
  import io.netty.handler.codec.http.FullHttpResponse;
  import io.netty.handler.codec.http.HttpMethod;
  import io.netty.handler.codec.http.HttpResponseStatus;
  import io.netty.handler.codec.http.HttpVersion;
  import org.junit.jupiter.api.Test;
  import org.openqa.selenium.remote.http.HttpRequest;
  
  class RequestConverterTest {
  
    @Test
    void canConvertASimpleRequest() {
      RequestConverter converter = new RequestConverter();
  
      EmbeddedChannel channel = new EmbeddedChannel(converter);
  
      FullHttpRequest httpRequest =
          new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "/cheese");
      httpRequest.headers().add("How-Good", "Delicious");
  
      assertThat(channel.writeInbound(httpRequest)).isTrue();
      HttpRequest req = channel.readInbound();
      assertThat(req.getMethod()).isEqualTo(GET);
      assertThat(req.getUri()).isEqualTo("/cheese");
      assertThat(req.getHeader("How-Good")).isEqualTo("Delicious");
    }
  
    @Test
    void returnsAnErrorForUnhandledMethods() {
      RequestConverter converter = new RequestConverter();
  
      EmbeddedChannel channel = new EmbeddedChannel(converter);
  
      FullHttpRequest httpRequest =
          new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.PATCH, "/cheese");
  
      assertThat(channel.writeInbound(httpRequest)).isFalse();
      FullHttpResponse res = channel.readOutbound();
  
      assertThat(res.status()).isEqualTo(HttpResponseStatus.METHOD_NOT_ALLOWED);
    }
  }
  