ImageReader_reader_Test.java

/*
 * Created on Feb 15, 2008
 * 
 * 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.
 * 
 * Copyright @2008-2013 the original author or authors.
 */
package org.fest.assertions;

import org.junit.BeforeClass;
import org.junit.Test;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import static java.awt.Color.RED;
import static org.fest.assertions.Resources.file;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

/**
 * Tests for {@link ImageReader#read(File)}.
 *
 * @author Yvonne Wang
 */
public class ImageReader_reader_Test {
  private static ImageReader imageReader;

  @BeforeClass
  public static void setUpOnce() {
    imageReader = new ImageReader();
  }

  @Test
  public void should_read_image_file() throws IOException {
    final File imageFile = file("red.png");
    BufferedImage image = imageReader.read(imageFile);
    assertNotNull(image);
    int w = image.getWidth();
    assertEquals(6, w);
    int h = image.getHeight();
    assertEquals(6, h);
    for (int x = 0; x < w; x++) {
      for (int y = 0; y < h; y++) {
        assertEquals(RED.getRGB(), image.getRGB(x, y));
      }
    }
  }
}