Simple Java Tips | Selenium Uses

1| Handling Exception | Assertion

Multiple Catch Blocks
Multiple catch avoid quit tests from various Exception

try
{
   assertEquals(actual, expected);
}catch(Exception e)
{
   System.out.println("...");
}catch(NullPointerException e)
{
   System.out.println("...");
}catch(IOException e)
{
   System.out.println("...");
}catch(ComparisonFailure e)
{
   System.out.println("...");
}

Finally Keyword
The finally keyword always executes

try
{
   assertEquals(actual, expected);
}catch(Exception e)
{
   System.out.println("...");
}finally
{
   System.out.println("...");
}


2| Java Arrays

Store values as a list of arrays for assertion.

#1
List<WebElement> savedItem = driver.findElement(By.id(Value)).findElements(By.tagName("li"));
ArrayList<String> storelist = new ArrayList<String>();
for(int i=0; i<savedItem.size(); i++) 
{
String d = savedItem.get(i).findElement(By.id(Value)).getText();
storelist.add(d);
System.out.println(storelist.get(i));
}

#2
String content[]={"string1","string2","string3","string4","string5"};
for(int i=0; i<content.length; i++){
if(isElementPresent(By.cssSelector("ul#"+content[i]+" > li")))
{
// Perform your code
}


3| Date Format

Date Format can be asserted using Java DateFormat.

String element = driver.findElement(By.xpath(Value)).getText();    
String Result = element.substring(6);
System.out.println(Result);   
    
DateFormat format = new SimpleDateFormat("MMM dd, yyyy");  // Date Format can be modified link
Date dif = format.parse(Result);
System.out.println(dif);

_
Sep 4, 2013
Wed Sep 04 00:00:00 IST 2013


4| Random Select

Elements can be selected randomly using Random().

List<WebElement> element = driver.findElement(By.id(Value)).findElements(By.tagName("li"));
    
Random r=new Random();
int index = r.nextInt((element.size()-1)-0+1)+0;  // int index = r.nextInt(max - min + 1) + min;    
String id = element.get(index).getAttribute(Value);
System.out.println(id);


5| Sort Arraylist

Elements can be sorted either in ascending order or descending order.

List<WebElement> savedItem = driver.findElement(By.id(Value)).findElements(By.tagName("li"));
ArrayList<String> storelist = new ArrayList<String>();
for(int i=0; i<savedItem.size(); i++) 
{
String d = savedItem.get(i).findElement(By.tagName("a")).getText();
storelist.add(d);
System.out.println(storelist.get(i));
}

Collections.sort(storelist); // Ascending order
System.out.println(storelist);
Collections.reverse(storelist); // Descending order