/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.jclouds.gogrid.handlers;

import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertTrue;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.jclouds.gogrid.mock.HttpCommandMock;
import org.jclouds.http.HttpCommand;
import org.jclouds.http.HttpResponse;
import org.jclouds.io.Payloads;
import org.jclouds.json.config.GsonModule;
import org.testng.TestException;
import org.testng.annotations.Test;

import com.google.inject.Guice;

/**
 * Tests that the GoGridErrorHandler is correctly handling the exceptions.
 * 
 * @author Oleksiy Yarmula
 */
//NOTE:without testName, this will not call @Before* and fail w/NPE during surefire
@Test(groups = "unit", testName = "GoGridErrorHandlerTest")
public class GoGridErrorHandlerTest {

   @Test
   public void testHandler() {
      InputStream is = getClass().getResourceAsStream("/test_error_handler.json");

      GoGridErrorHandler handler = Guice.createInjector(new GsonModule()).getInstance(GoGridErrorHandler.class);

      HttpCommand command = createHttpCommand();
      handler.handleError(command, new HttpResponse(200, "ok", Payloads.newInputStreamPayload(is)));

      Exception createdException = command.getException();

      assertNotNull(createdException, "There should've been an exception generated");
      String message = createdException.getMessage();
      assertTrue(message.contains("No object found that matches your input criteria."),
            "Didn't find the expected error cause in the exception message");
      assertTrue(message.contains("IllegalArgumentException"),
            "Didn't find the expected error code in the exception message");

      // make sure the InputStream is closed
      try {
         is.available();
         throw new TestException("Stream wasn't closed by the GoGridErrorHandler when it should've");
      } catch (IOException e) {
         // this is the excepted output
      }
   }

   HttpCommand createHttpCommand() {
      return new HttpCommandMock() {
         private Exception exception;

         @Override
         public void setException(Exception exception) {
            this.exception = exception;
         }

         @Override
         public Exception getException() {
            return exception;
         }
      };
   }

   InputStream createInputStreamFromString(String s) {
      return new ByteArrayInputStream(s.getBytes());
   }

}