Ashot Java堆空间错误

Question

我想运行parralel截图测试，但有一个错误。我提高了Xmx和Xms，它们不会吃掉我的内存，我有32 my的内存。但它们在吃完它定义的内存后，会在随机点上失败。有没有内存优化的解决方案？我比较了一些PNG格式的18+图像，大约需要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;

和一些带有I find diff的代码

    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。我转而使用ShutterBug，它工作得很好。https://github.com/assertthat/selenium-shutterbug

build.gradle代码段

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

用于捕获页面截图并将其附加到Allure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();

    }