/**
* 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 2012-2015 the original author or authors.
*/
package org.assertj.swing.util;
import static java.awt.Color.RED;
import static org.assertj.swing.test.ExpectedException.none;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.awt.image.BufferedImage;
import java.io.IOException;
import org.assertj.swing.test.ExpectedException;
import org.junit.Rule;
import org.junit.Test;
/**
* Tests for <code>{@link ImageReader#readImageFrom(String)}</code>.
*
* @author Yvonne Wang
*/
public class ImageReader_readImageFrom_Test {
@Rule
public ExpectedException thrown = none();
@Test
public void should_Throw_Error_If_Path_Is_Null() throws IOException {
thrown.expectNullPointerException("The path of the image to read should not be null");
ImageReader.readImageFrom(null);
}
@Test
public void should_Throw_Error_If_Path_Does_Not_Belong_To_File() throws IOException {
thrown.expectIllegalArgumentException("The path 'xyz' does not belong to a file");
ImageReader.readImageFrom("xyz");
}
@Test
public void should_Read_Image_File() throws IOException {
BufferedImage image = ImageReader.readImageFrom("src/test/resources/red.png");
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));
}
}