Add test for the W3CHttpResponseCodec.

Author: shs96c

java/client/test/org/openqa/selenium/remote/http/W3CHttpResponseCodecTest.java

@@ -0,0 +1,104 @@
+// 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.http;
+
+import static java.net.HttpURLConnection.HTTP_INTERNAL_ERROR;
+import static java.net.HttpURLConnection.HTTP_OK;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.openqa.selenium.remote.ErrorCodes.METHOD_NOT_ALLOWED;
+
+import com.google.gson.Gson;
+
+import org.junit.Test;
+import org.openqa.selenium.UnsupportedCommandException;
+import org.openqa.selenium.WebDriverException;
+import org.openqa.selenium.remote.ErrorCodes;
+import org.openqa.selenium.remote.Response;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class W3CHttpResponseCodecTest {
+
+  @Test
+  public void noErrorNoCry() {
+    Map<String, Object> data = new HashMap<>();
+    data.put("value", "cheese");
+
+    HttpResponse response = createValidResponse(HTTP_OK, data);
+
+    Response decoded = new W3CHttpResponseCodec().decode(response);
+
+    assertEquals(ErrorCodes.SUCCESS, decoded.getStatus().intValue());
+    assertEquals("success", decoded.getState());
+    assertEquals("cheese", decoded.getValue());
+  }
+
+  @Test
+  public void decodingAnErrorWithoutAStacktraceIsDecodedProperlyForNonCompliantImplementations() {
+    Map<String, Object> error = new HashMap<>();
+    error.put("error", "unsupported operation");  // 500
+    error.put("message", "I like peas");
+    error.put("stacktrace", "");
+
+    HttpResponse response = createValidResponse(HTTP_INTERNAL_ERROR, error);
+
+    Response decoded = new W3CHttpResponseCodec().decode(response);
+
+    assertEquals("unsupported operation", decoded.getState());
+    assertEquals(METHOD_NOT_ALLOWED, decoded.getStatus().intValue());
+
+    assertTrue(decoded.getValue() instanceof UnsupportedCommandException);
+    assertTrue(((WebDriverException) decoded.getValue()).getMessage().contains("I like peas"));
+  }
+
+  @Test
+  public void decodingAnErrorWithoutAStacktraceIsDecodedProperlyForConformingImplementations() {
+    Map<String, Object> error = new HashMap<>();
+    error.put("error", "unsupported operation");  // 500
+    error.put("message", "I like peas");
+    error.put("stacktrace", "");
+    Map<String, Object> data = new HashMap<>();
+    data.put("value", error);
+
+    HttpResponse response = createValidResponse(HTTP_INTERNAL_ERROR, data);
+
+    Response decoded = new W3CHttpResponseCodec().decode(response);
+
+    assertEquals("unsupported operation", decoded.getState());
+    assertEquals(METHOD_NOT_ALLOWED, decoded.getStatus().intValue());
+
+    assertTrue(decoded.getValue() instanceof UnsupportedCommandException);
+    assertTrue(((WebDriverException) decoded.getValue()).getMessage().contains("I like peas"));
+  }
+
+  private HttpResponse createValidResponse(int statusCode, Map<String, ?> data) {
+    byte[] contents = new Gson().toJson(data).getBytes(UTF_8);
+
+    HttpResponse response = new HttpResponse();
+    response.setStatus(statusCode);
+    response.addHeader("Content-Type", "application/json; charset=utf-8");
+    response.addHeader("Cache-Control", "no-cache");
+    response.addHeader("Content-Length", String.valueOf(contents.length));
+    response.setContent(contents);
+
+    return response;
+  }
+}