How to get parent and child node

Question

I am writing automated tests for node.js applicatioon. The application has parent and child nodes. I want to access parent and child nodes. Which locator should I use. The application is at-:

http://bl.ocks.org/robschmuecker/7926762

Answer 1

There are two ways you can get the parent node.

Using JavaScript and using xPath.

1.) Using Javascript, you will have to use parentNode function to get the parent of an element.

Eg.

WebElement ele = driver.findElement(By.id("eleID"));

WebElement theParent = (WebElement) ((JavascriptExecutor) driver).executeScript("return arguments[0].parentNode;", ele );

 

2.) Using xPath, you can use ".." double dot to get the parent of the element.

Eg.

WebElement ele = driver.findElement(By.id("eleID"));

WebElement theParent = ele.findElement(By.xpath(".."));

 

To get the child element, you can simply identify element using xPath, cssSelector or tagName

Eg. Using tagName

 

WebElement eleTable = driver.findElement(By.id("TableID"));

WebElement theFirstRow = eleTable.findElements(By.tagName("tr")).get(0);