我能够使用下面的代码成功地截取我的应用程序JainLibrary的页面之一.我正在使用junit和appium.
public String Screenshotpath = "Mention the folder Location";
File scrFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);
FileUtils.copyFile(scrFile,new File(Screenshotpath+"Any name".jpg"));
现在我想将屏幕截图与参考图像进行比较,以便我可以继续使用测试用例.
最佳答案
一个简单的解决方案是将每个像素与参考屏幕截图进行比较：
// save the baseline screenshot
driver.get("https://www.google.co.uk/intl/en/about/");
File scrFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);
FileUtils.copyFile(scrFile,new File("c:\\temp\\screenshot.png"));
// take another screenshot and compare it to the baseline
driver.get("https://www.google.co.uk/intl/en/about/");
byte[] pngBytes = ((TakesScreenshot)driver).getScreenshotAs(OutputType.BYTES);
if (IsPngEquals(new File("c:\\temp\\screenshot.png"),pngBytes)) {
System.out.println("equals");
} else {
System.out.println("not equals");
}
public static boolean IsPngEquals(File pngFile,byte[] pngBytes) throws IOException {
BufferedImage imageA = ImageIO.read(pngFile);
ByteArrayInputStream inStreamB = new ByteArrayInputStream(pngBytes);
BufferedImage imageB = ImageIO.read(inStreamB);
inStreamB.close();
DataBufferByte dataBufferA = (DataBufferByte)imageA.getRaster().getDataBuffer();
DataBufferByte dataBufferB = (DataBufferByte)imageB.getRaster().getDataBuffer();
if (dataBufferA.getNumBanks() != dataBufferB.getNumBanks()) {
return false;
}
for (int bank = 0; bank < dataBufferA.getNumBanks(); bank++) {
if (!Arrays.equals(dataBufferA.getData(bank),dataBufferB.getData(bank))) {
return false;
}
}
return true;
}
请注意,您需要将参考屏幕截图另存为PNG. JPEG格式将改变像素.
