/* Copyright (c) 2009 Google Inc.
 *
 * Licensed 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 com.google.wave.api;

import junit.framework.TestCase;

/**
 * Image unit tests.
 *
 * @author scovitz@google.com (Seth Covitz)
 */
public class ImageRobotTest extends TestCase {

  private static final String ATTACHMENT_ID = "attachmentId";
  private static final String CAPTION = "caption";
  private static final int HEIGHT = 240;
  private static final String URL = "url";
  private static final int WIDTH = 320;

  public void testDefaultConstructor() {
    Image image = new Image();
    assertEquals(ElementType.IMAGE, image.getType());
    assertNull(image.getAttachmentId());
    assertNull(image.getCaption());
    assertNull(image.getUrl());
  }

  public void testAttachmentConstructor() {
    Image image = new Image(ATTACHMENT_ID, CAPTION);
    assertEquals(ElementType.IMAGE, image.getType());
    assertEquals(ATTACHMENT_ID, image.getAttachmentId());
    assertEquals(CAPTION, image.getCaption());
    assertNull(image.getUrl());
  }

  public void testImageConstructor() {
    Image image = new Image(URL, WIDTH, HEIGHT, CAPTION);
    assertEquals(ElementType.IMAGE, image.getType());
    assertNull(image.getAttachmentId());
    assertEquals(CAPTION, image.getCaption());
    assertEquals(URL, image.getUrl());
    assertEquals(WIDTH, image.getWidth());
    assertEquals(HEIGHT, image.getHeight());
  }

  public void testGettersAndSetters() {
    Image image = new Image();
    image.setAttachmentId(ATTACHMENT_ID);
    image.setCaption(CAPTION);
    image.setUrl(URL);
    image.setWidth(WIDTH);
    image.setHeight(HEIGHT);
    assertEquals(ATTACHMENT_ID, image.getAttachmentId());
    assertEquals(CAPTION, image.getCaption());
    assertEquals(URL, image.getUrl());
    assertEquals(WIDTH, image.getWidth());
    assertEquals(HEIGHT, image.getHeight());
  }

  public void testGetWidth() {
    Image image = new Image();
    image.setWidth(WIDTH);
    assertEquals(WIDTH, image.getWidth());

    image = new Image();
    try {
      image.getWidth();
      fail("Should have failed with IllegalStateException. Calling getWidth() is not allowed if " +
           "the image doesn't have a width.");
    } catch (IllegalStateException e) {
      // Expected.
    }
  }

  public void testGetHeight() {
    Image image = new Image();
    image.setHeight(HEIGHT);
    assertEquals(HEIGHT, image.getHeight());

    image = new Image();
    try {
      image.getHeight();
      fail("Should have failed with IllegalStateException. Calling getHeight() is not allowed if " +
           "the image doesn't have a height.");
    } catch (IllegalStateException e) {
      // Expected.
    }
  }
}