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.remote;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
  
  import com.google.common.collect.ImmutableMap;
  import java.util.Map;
  import org.junit.jupiter.api.Tag;
  import org.junit.jupiter.api.Test;
  import org.openqa.selenium.Capabilities;
  import org.openqa.selenium.ImmutableCapabilities;
  import org.openqa.selenium.SessionNotCreatedException;
  
  @Tag("UnitTests")
  class W3CHandshakeResponseTest {
  
    @Test
    void successfulResponseGetsParsedProperly() {
      Capabilities caps = new ImmutableCapabilities("cheese", "peas");
      Map<String, Map<String, Object>> payload =
          ImmutableMap.of(
              "value",
              ImmutableMap.of("capabilities", caps.asMap(), "sessionId", "cheese is opaque"));
      InitialHandshakeResponse initialResponse = new InitialHandshakeResponse(0, 200, payload);
  
      ProtocolHandshake.Result result =
          new W3CHandshakeResponse().getResponseFunction().apply(initialResponse);
  
      assertThat(result).isNotNull();
      assertThat(result.getDialect()).isEqualTo(Dialect.W3C);
      Response response = result.createResponse();
  
      assertThat(response.getState()).isEqualTo("success");
      assertThat((int) response.getStatus()).isZero();
  
      assertThat(response.getValue()).isEqualTo(caps.asMap());
    }
  
    @Test
    void shouldIgnoreAJsonWireProtocolReply() {
      Capabilities caps = new ImmutableCapabilities("cheese", "peas");
      Map<String, ?> payload =
          ImmutableMap.of("status", 0, "value", caps.asMap(), "sessionId", "cheese is opaque");
      InitialHandshakeResponse initialResponse = new InitialHandshakeResponse(0, 200, payload);
  
      ProtocolHandshake.Result result =
          new W3CHandshakeResponse().getResponseFunction().apply(initialResponse);
  
      assertThat(result).isNull();
    }
  
    @Test
    void shouldIgnoreAGeckodriver013Reply() {
      Capabilities caps = new ImmutableCapabilities("cheese", "peas");
      Map<String, ?> payload =
          ImmutableMap.of("value", caps.asMap(), "sessionId", "cheese is opaque");
      InitialHandshakeResponse initialResponse = new InitialHandshakeResponse(0, 200, payload);
  
      ProtocolHandshake.Result result =
          new W3CHandshakeResponse().getResponseFunction().apply(initialResponse);
  
      assertThat(result).isNull();
    }
  
    @Test
    void shouldProperlyPopulateAnError() {
      Map<String, ?> payload =
          ImmutableMap.of(
              "value",
              ImmutableMap.of(
                  "error", "session not created",
                  "message", "me no likey",
                  "stacktrace", "I have no idea what went wrong"));
  
      InitialHandshakeResponse initialResponse = new InitialHandshakeResponse(0, 500, payload);
  
      assertThatExceptionOfType(SessionNotCreatedException.class)
          .isThrownBy(() -> new W3CHandshakeResponse().getResponseFunction().apply(initialResponse))
          .withMessageContaining("me no likey")
          .satisfies(
              e ->
                  assertThat(e.getAdditionalInformation())
                      .contains("I have no idea what went wrong"));
    }
  }
  