What is TestNG?
TestNG is a Testing framework that overcomes the limitations of another popular testing framework called JUnit. The "NG" means "Next Generation." Most Selenium users use this more than Junit because of its advantages. There are so many features of TestNG, but we will only focus on the most important ones that we can use in Selenium.
There are three major advantages of TestNG over JUnit:
Annotations are easier to understand
Test cases can be grouped more easily
Parallel testing is possible
2. Mention five locators newly added in Selenium 4:
above: It is to locate a web element just above the specified element
below: It is to locate a web element just below the specified element
toLeftOf: It is to locate a web element present on the left of a specified element
toRightOf: It is to locate a web element present on the right of a specified element
near: It is to locate a web element at approx. 50 pixels away from a specified element. The distance can be passed as an argument to an overloaded method.
3. What are the annotations available in TestNG?
@BeforeTest
@AfterTest
@BeforeClass
@AfterClass
@BeforeMethod
@AfterMethod
4. What is the importance of testng.xml file?
testng.xml file allows to include or exclude the execution of test methods and test groups
It allows to pass parameters to the test cases
Allows to add group dependencies
6. How to disable a test case in TestNG ?
To disable the test case we use the parameter enabled = false to the @Test annotation.
@Test(enabled = false)
7. How to Check Broken Links and Images?
For find out the broken links, you have to go through with the following steps:
Find all the links of the web page based on the a tag.
Send HTTP requests to all the links and read the HTTP response codes.
Based on the response code we can find out the valid and broken links based on the response code.
Iterate all the links one by one to get all the response code.
200 - valid Link
404 - Link Not Found
400 - Bad Request
401 - Unauthorized
500 - Internal error
8. How will you automate Image in selenium
Use sikuli
Sikuli is a Graphical User Interface Automation Tool. Using Sikuli Automation tool we could automate whatever we see on the screen. It basically uses image recognition technology to identify and control GUI elements. We all know that using Selenium we cant automate windows objects. Integrating Sikuli with Selenium allows us to overcome this issue. Using Sikuli with Selenium, we could automate windows objects. Using Sikuli we could automate both Web and Windows based applications.
10. What is the use of @TestinvocationCount=x?
The invocationcount attribute tells how many times TestNG should run a test method
Java Scanner class provides the nextLine method to facilitates line by line of file’s content.
12. Difference between Array and ArrayList?
Array
Array is static ArrayList is dynamic
Size of the array should be given at the time of array declaration. We cannot change the size of array after creating it
Size of the array may not be required. It changest the size dynamically. Capacity of ArrayList increases automatically whenever we add elements to an ArrayList
Array can contain both primitive data types as well as object.
ArrayList cannot contain primitive data types. It contains only objects
Arrays are multidimensional ArrayList is always single dimension
12. What is difference between Cherio and Node JS
Cheerio :
Cheerio is a Node.js module that is built on the top of Core JQuery and its function. With Cheerio, we can use JQuery on the server-side. Cheerio is capable enough to parse HTML and XML files.
2. Selenium :
Selenium is an automation tool that is used to automate the browser. It is much more powerful tool as compare to cheerio. Selenium provides a playback tool for authoring functional tests without the need to learn a test scripting language so it is widely used for testing web applications.
14. What are the common Myths about Testing Website Accessibility
Myth 1: It’s expensive.
Fact: Precaution is always better than cure, so we can think of accessibility issues at the design stage itself and reduce the cost.
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