Ashot Java 堆空间错误

Question

我想运行一个parralel屏幕截图测试，但有一个错误。 我提高了Xmx和Xms，它们并没有吃掉我所有的RAM，我有一个32gb。 但是它们在吃完它定义的记忆后随机点失败。 有没有内存优化的解决方案？ 我在某处绘制了 18+ 张图像，PNG 格式需要附近的 200-600-800kb

这是gradle.properties。

org.gradle.parallel=false
org.gradle.caching=false
org.gradle.console=verbose
org.gradle.jvmargs=-Xmx16g -Xms4g -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
systemProp.junit.jupiter.execution.parallel.enabled=true
systemProp.junit.jupiter.execution.parallel.mode.default=concurrent
systemProp.junit.jupiter.execution.parallel.mode.classes.default=concurrent
systemProp.junit.jupiter.execution.parallel.config.strategy=dynamic
systemProp.junit.jupiter.execution.parallel.config.dynamic.factor=1

我的导入，有最新版本的库。

import ru.yandex.qatools.ashot.AShot;
import ru.yandex.qatools.ashot.Screenshot;
import ru.yandex.qatools.ashot.comparison.ImageDiff;
import ru.yandex.qatools.ashot.comparison.ImageDiffer;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

还有一些代码，我发现差异

protected int differenceBetweenPages(String pageName,
String actualUrl,
int scrollTime) throws IOException {
open(actualUrl);
actual = capturePage(scrollTime);
ImageIO.write(actual.getImage(), "png", actualImg(pageName));
attach = new FileInputStream(actualImg(pageName));
Allure.addAttachment("Actual page", "image/png", attach, ".png");
attach.close();
expected = expectedScreenshot(pageName);
diff = new ImageDiffer().makeDiff(expected, actual);
ImageIO.write(diff.getMarkedImage(), "png", diffImg(pageName));
attach = new FileInputStream(diffImg(pageName));
Allure.addAttachment("Diff Page", "image/png", attach, ".png");
attach.close();
return diff.getDiffSize();
}

Answer 1

我在使用 Ashot 库时也遇到了问题。我切换到ShutterBug，它工作正常。 https://github.com/assertthat/selenium-shutterbug

build.gradle snippet

compile 'com.assertthat:selenium-shutterbug:0.9.2'

用于捕获页面屏幕截图并将其附加到诱惑报告的 API

@Attachment(value = "Page screenshot", type = "image/png")
public static byte[] captureScreenshot(WebDriver driver) {
BufferedImage screenshot = Shutterbug.shootPage(driver, ScrollStrategy.WHOLE_PAGE, true).getImage();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
ImageIO.write(screenshot, "png", outputStream);
} catch (IOException e) {
e.printStackTrace();
}
return outputStream.toByteArray();
}