Question

如果测试用例出现故障，如何从文本文件中检索下一个值？

这是我的代码：

public void openFile(){
  try{
    x = new Scanner(new File("C:\\Project1\\ids.txt"));
    public void readFile(){
    }
  }catch(Exception e){
    System.out.println("not find file");
  }
  while(x.hasNext()){
    String a = x.next();
    driver.findElement(By.xpath("//*[@id=\"in_member_id\"]")).sendKeys(a);
  }
}

如果文件ids.text的第1行中的值错误，我希望它将第二个值放到第三个值，依此类推。如果它是正确的我希望它继续到文件的最后一个。

Answer 1

如果您的文件不是非常大，您可以尝试的一种策略是预取所有行并将它们存储在列表中。然后循环并打破作为最终语句，这表示成功意味着您可以停止尝试。这可能看起来像这样：

// Let's just assume the file is always found for example's sake
Scanner in = new Scanner(new File("C:\\Project1\\ids.txt"));
List<String> fileLines = new ArrayList<>();

// Pre fetch all the lines in the file
while (in.hasNextLine()) {
    String line = in.nextLine();
    if (!line.isEmpty()) {
        fileLines.add(line);
    }
}

// Try each id until one succeeds and the loop is broken
for (String aLine : fileLines) {
    try {
        driver.findElement(By.xpath("//*[@id=\"in_member_id\"]")).sendKeys(a);

        // Here is where you would check for failures that don't throw an exception, if you need to...

        // If this break is reached, then no failures were detected
        break;

    // If a failure happens that results in an exception
    } catch (Exception e) {
        System.out.println("An error happened, trying next line");
    } 
}

测试用例失败时从文件中获取下一个值

1 个答案: