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756a3b41e1
This change added the implementation of screenshot comparison with ChromeWebDriver which will be used in the open-source code base. This change also set a default window size(1200x2000) for each screenshot test. This is to make the size of screenshot deterministic to help build the screenshot comparison tests. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=235539713
94 lines
3.2 KiB
Java
94 lines
3.2 KiB
Java
// Copyright 2019 The Nomulus Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.webdriver;
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import static com.google.common.base.Preconditions.checkNotNull;
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import static com.google.common.base.Preconditions.checkState;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.File;
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import java.io.IOException;
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import java.io.UncheckedIOException;
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import java.util.Arrays;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageReader;
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/** An immutable class represents . */
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public class ActualScreenshot {
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public static final String IMAGE_FORMAT = "png";
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private String imageKey;
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private BufferedImage bufferedImage;
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private ActualScreenshot(String imageKey, BufferedImage bufferedImage) {
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this.imageKey = imageKey;
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this.bufferedImage = bufferedImage;
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}
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/** Creates an ActualScreenshot from the given image format and byte array. */
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public static ActualScreenshot create(String imageKey, byte[] imageBytes) {
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checkNotNull(imageKey);
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checkNotNull(imageBytes);
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byte[] imageBytesClone = Arrays.copyOf(imageBytes, imageBytes.length);
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ByteArrayInputStream imageInputStream = new ByteArrayInputStream(imageBytesClone);
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ImageReader imageReader = ImageIO.getImageReadersByFormatName(IMAGE_FORMAT).next();
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try {
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imageReader.setInput(checkNotNull(ImageIO.createImageInputStream(imageInputStream)));
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BufferedImage bufferedImage = checkNotNull(imageReader.read(0));
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return new ActualScreenshot(imageKey, bufferedImage);
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} catch (IOException e) {
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throw new UncheckedIOException(e);
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}
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}
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/** {@link BufferedImage#getSubimage(int, int, int, int)} */
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public ActualScreenshot getSubimage(int x, int y, int w, int h) {
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return new ActualScreenshot(imageKey, bufferedImage.getSubimage(x, y, w, h));
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}
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/** {@link BufferedImage#getWidth()} */
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public int getWidth() {
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return bufferedImage.getWidth();
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}
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/** {@link BufferedImage#getHeight()} */
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public int getHeight() {
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return bufferedImage.getHeight();
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}
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/** {@link BufferedImage#getRGB(int, int)} */
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public int getRGB(int x, int y) {
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return bufferedImage.getRGB(x, y);
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}
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/** Writes the underlying BufferedImage to the given file. */
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public void writeTo(File file) {
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try {
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checkState(ImageIO.write(bufferedImage, IMAGE_FORMAT, checkNotNull(file)));
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} catch (IOException e) {
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throw new UncheckedIOException(e);
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}
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}
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/** Returns the imageKey of the screenshot. */
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public String getImageKey() {
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return imageKey;
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}
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/** Returns the concat of imageKey and imageFormat. */
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public String getImageName() {
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return String.join(".", imageKey, IMAGE_FORMAT);
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}
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}
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