TestNg Overview and Configuration in eclipse

1 Abhishek Chakraborty (abhishek.tec@gmail.com)

What is TestNG?

TestNG is testing framework used for the Java

programming language. TestNG is the framework which is

very useful to use with selenium WebDriver software

testing tool. The TestNG framework is introduced to

overcome the limitations of JUnit framework. Most of

the automation users are using this framework because

of its advantages & more supported features. Using this

TestNG framework we will learn how to generate test

reports. Also we can use Ant and xslt report along with

TestNg.

Features of TestNG Framework:

TestNG supports many powerful features & it is easy to

use. Let’s see what all new features are supported in

new testing framework:

Support for parameters.

Supports dependent methods testing.

Test configuration flexible.

Supports powerful execution model.

TestNG has a more elegant way of handling

parameterized tests with the data-provider concept.

For the same test class TestNG support for multiple

instances.

Default JDK functions for runtime and logging (no

dependencies).

Supported different Annotations like @BeforeSuite,

@AfterSuite, @BeforeClass, @AfterClass,

@BeforeTest, @AfterTest, @BeforeMethod,

@AfterMethod, @DataProvider, @Parameters, @Test

etc.

TestNG supports annotations which are very helpful to

guide test case executions. Similarly in JUnit, the

TestNG annotations are always preceded by the ‘@’

symbol. It permit you do parallel execution of test

TestNg Overview and Configuration in eclipse

2 Abhishek Chakraborty (abhishek.tec@gmail.com)

cases & we can also skip the test cases effortlessly

while executing test cases.

TestNG is specially designed to cover all types testing

categories like Unit, Functional testing, Integration

testing, End-to-end etc. Using TestNG framework allows

us to generate test reports in both HTML and XML

formats. Using ANT with TestNG, we can generate

primitive Testng reports as well.

Advantages of TestNG over Junit:

1. In TestNG Annotations are easy to understand over JUnit.

2. In TestNG there is no constraint like you have to declare @BeforeClass and @AfterClass

3. As method name constraint is present in JUnit, such method name constraint is not present in TestNG and

you can specify any test method names.

4. In TestNG enable you to grouping of test cases easily which is not possible in JUnit.

5. TestNG supports following three 3 additional setUp/tearDown level:

@Before/AfterSuite, @Before/AfterTest and

@Before/AfterGroup.

6. TestNG allows us to define the dependent test 7. Parallel execution of Selenium test cases is

possible in TestNG.

TestNg Overview and Configuration in eclipse

3 Abhishek Chakraborty (abhishek.tec@gmail.com)

Steps to install TestNG in Eclipse IDE:

1) Launch Eclipse IDE & under Help menu click on

“Install New Software” option.

TestNg Overview and Configuration in eclipse

4 Abhishek Chakraborty (abhishek.tec@gmail.com)

2) Install dialog box will be appeared same as below:

TestNg Overview and Configuration in eclipse

5 Abhishek Chakraborty (abhishek.tec@gmail.com)

3) In the install dialog box, enter URL as

“http://beust.com/eclipse” in Work with text box &

press keyboard enter key.

TestNg Overview and Configuration in eclipse

6 Abhishek Chakraborty (abhishek.tec@gmail.com)

4) Under Name column TestNG check box will be displayed

same as below:

TestNg Overview and Configuration in eclipse

7 Abhishek Chakraborty (abhishek.tec@gmail.com)

5) Select the “TestNG” check box & click on Next

button.

TestNg Overview and Configuration in eclipse

8 Abhishek Chakraborty (abhishek.tec@gmail.com)

6) On Install Details screen, make sure that TestNG is

selected & then click on Next button same as mentioned

below screenshot:

TestNg Overview and Configuration in eclipse

9 Abhishek Chakraborty (abhishek.tec@gmail.com)

7) On Review Licenses screen read license agreement &

select “I accept…” option shown in below screen shot &

click on Finish button.

TestNg Overview and Configuration in eclipse

10 Abhishek Chakraborty (abhishek.tec@gmail.com)

8) Ensure that Installing Software dialog appear. Wait

till installation gets completed:

9) One security warning message will appear during

installation. Ensure that you click on Ok button if

same security dialog is appeared.

10) Once the installation process is completed then

Eclipse ask you to Restart, click on Yes button.

TestNg Overview and Configuration in eclipse

11 Abhishek Chakraborty (abhishek.tec@gmail.com)

11) Once the Eclipse is restarted, to make sure whether

TestNG is installed or not. Just under Run menu click

on “Run As” option & check new option is added called

“TestNG Test”same as below screen shot:

TestNg Overview and Configuration in eclipse

12 Abhishek Chakraborty (abhishek.tec@gmail.com)

Creating Java Project with TestNG Dependencies

Before we write our first TestNG test, we have to

create a Java project in Eclipse and add our TestNG

test dependencies.

1) Go to File | New | Other. A window with multiple

options will be shown.

2) Select Java Project as shown in the following

screenshot and click on Next.

TestNg Overview and Configuration in eclipse

13 Abhishek Chakraborty (abhishek.tec@gmail.com)

3) On the next screen, enter a Project name for a

Java project, let’s say TestNGExamples, as shown in

the following screenshot, and click on Finish:

This will create a new Java project in Eclipse.

TestNg Overview and Configuration in eclipse

14 Abhishek Chakraborty (abhishek.tec@gmail.com)

4)Now go to Project | Properties. Select Java Build

Path on the left-hand side on the Properties window

as shown in the following screenshot. This will

display the build path for the newly created

project.

5) Click on the Libraries tab and click on the Add

Library… option.

TestNg Overview and Configuration in eclipse

15 Abhishek Chakraborty (abhishek.tec@gmail.com)

6) Select TestNG on the Add Library window as shown

in the following screenshot and click on Next:

TestNg Overview and Configuration in eclipse

16 Abhishek Chakraborty (abhishek.tec@gmail.com)

7) Click on Finish on your next window. This will

add the TestNG library to your Eclipse project.

We have successfully created a new Java project in

Eclipse and added a TestNG library to the build

path of the project.

TestNg Overview and Configuration in eclipse

17 Abhishek Chakraborty (abhishek.tec@gmail.com)

Creating your first TestNG class

Perform the following steps to create your first

TestNG class:

1) Go to File | New | Other. This will open a new

Add wizard window in Eclipse.

TestNg Overview and Configuration in eclipse

18 Abhishek Chakraborty (abhishek.tec@gmail.com)

2) Select TestNG class from the Add wizard window

and click on Next.

TestNg Overview and Configuration in eclipse

19 Abhishek Chakraborty (abhishek.tec@gmail.com)

3) On the next window click on the Browse

button and select the Java project where you need

to add your class.

TestNg Overview and Configuration in eclipse

20 Abhishek Chakraborty (abhishek.tec@gmail.com)

4) Enter the package name and the test class

name and click on Finish.

TestNg Overview and Configuration in eclipse

21 Abhishek Chakraborty (abhishek.tec@gmail.com)

5) This window also gives you an option to select

different annotations while creating a new TestNG

class. If selected, the plugin will generate dummy

methods for these annotations while generating the

class. This will add a new TestNG class to your

project. package com.howtodoinjava.test;

import org.testng.annotations.AfterTest; import org.testng.annotations.BeforeTest; import org.testng.annotations.Test;

public class MyFirstTest { @Test public void f() { }

@BeforeTest public void beforeTest() { }

@AfterTest public void afterTest() { } }

We have successfully added a new TestNG test class

to the newly created Java project in Eclipse. Feel

free to modify the code as needed. Now let’s run

the newly created test class through Eclipse.

TestNg Overview and Configuration in eclipse

22 Abhishek Chakraborty (abhishek.tec@gmail.com)

Running TestNG test

Perform the following steps to run tests through

Eclipse:

1) Select the Java project in the Eclipse and go to Run

| Run Configuration.

2) Select TestNG in the given options and click on the

New button to create a new configuration.

TestNg Overview and Configuration in eclipse

23 Abhishek Chakraborty (abhishek.tec@gmail.com)

3) Please notice that TestNG plugin provides multiple

options for running your test cases as follows:

Class: Using this option you can provide the class

name along with the package to run only the said

specific test class.

Method: Using this you can run only a specific method

in a test class.

Groups: In case you would like to run specific test

methods belonging to a particular TestNG group, you can

enter those here for executing them.

Package: If you would like to execute all the tests

inside a package, you can specify these in this box.

Suite: In case you have suite files in the form

of testing.xml files, you can select those here for

execution.

TestNg Overview and Configuration in eclipse

24 Abhishek Chakraborty (abhishek.tec@gmail.com)

Let’s enter the configuration name as TestNGRunConfig and

select the newly created class under the Class section

and click on Apply.

4) Now if you would like to run the newly created

configuration, just click on Run after clicking on

Apply. This will compile and run the TestNG test class

that we have written. The result of the test execution

is displayed in the Console and Results windows of

Eclipse as shown in the following screenshot. [TestNG] Running: C:\Users\somelocalpath\testng-customsuite.xml

PASSED: f =============================================== Default test Tests run: 1, Failures: 0, Skips: 0 ===============================================

=============================================== Default suite Total tests run: 1, Failures: 0, Skips: 0 ===============================================

[TestNG] Time taken by org.testng.reporters.XMLReporter@177b3cd: 23 ms [TestNG] Time taken by [FailedReporter passed=0 failed=0 skipped=0]: 0 ms [TestNG] Time taken by org.testng.reporters.jq.Main@b8deef: 46 ms [TestNG] Time taken by org.testng.reporters.JUnitReportReporter@10ab323: 12 ms [TestNG] Time taken by org.testng.reporters.EmailableReporter2@5e176f: 13 ms [TestNG] Time taken by org.testng.reporters.SuiteHTMLReporter@d1e89e: 142 ms

You can also run the test class by selecting it and

then right-clicking on it, selecting Run as from the

menu, and then choosing TestNG Test.

TestNg Overview and Configuration in eclipse

25 Abhishek Chakraborty (abhishek.tec@gmail.com)

TestNg Overview and Configuration in eclipse

26 Abhishek Chakraborty (abhishek.tec@gmail.com)

Conclusion:

TestNG is really impressive framework where we can

execute the simple to complex test scripts with

ease. It supports many powerful features, like

annotations, reporting, data-driven testing etc.

You can develop page object model (POM) with Page

Factory framework with the help of Testng easily.

Also You can use ant with TestNg, generate

graphical report with the help of xslt report.

In this TestNG tutorial, we learned about TestNG,

features offered by TestNG, installing the TestNG

plugin into Eclipse and writing and executing a TestNG

test class through Eclipse

Happy Learning