TestNG HandMade Notes

-

 

 How To Install Test NG:

- Go to TestNG.org

- Click on eclipse

- Copy the link give on the page: https://dl.bintray.com/testng-team/testng-eclipse-release/

- Go to Eclipse >> Click help >> select install new software >> paste the url in "Add with" box >> click on Add >> Finish

============

# All TestNG annotations:

https://www.softwaretestingmaterial.com/testng-annotations/


============

# Normally to run a java class you need a main method.

But when u run TestNG.xml it runs without the java compiler


# Adding testNG.xml to a project

Right click on project >> Click on TestNG >> Convert to TestNG


========

#Hierarchy of TestNG.xml file:

<suite name="Regression Suite">

<test name= "UI validations">

<classes>

<class name="tests.BasicsDay1"/>

</classes>

</test>

</suite>

=========

# How to exclude a method from test execution without removing or commenting the method from your test Class?

<suite name = "Regression">

<test>

<classes>

<class name = "tests.TestClass1"> 

<methods>

<exclude name = "testMethod1"/>

<methods/>

</class>

</classes>

</test>

</suite>


OR


<suite name = "Regression suite">

<test name = "UI validations">

<classes>

<class name = "tests.TestClass1" >

<methods>

<include name = "testMethod2"/> // this will run only the mentioned test and other test methods in the test class will be skipped.

</methods>

</classes>

</test>

</suite>

==========

# Excluding or Including a test Method in a test Class from being executed using Regex in TestNG.xml:
*The following code excludes all methods in the test Class starting with "API"


<suite name="Regression Suite">

<test name="UI validations">

<classes>

<class name="tests.testClass2">

<methods>

<exclude name="API.*" />

</methods>

</class>

</classes>

</test>

</suite>

==========

# How to Run all tests in a package?

- Add packages tag in testNg.xml as follows:


<suite name="Regression Suite">

<test name="UI validations">

<packages>

<package name="tests" />

</packages>

</test>

</suite>

==========

# How do I group test cases in TestNG. For example there is a set of tests that I want to run as a part of Smoke Tests.


Ans:- You can use the <groups> tag in TestNG.xml to include a group.

eg.,


<suite>

<test>

<groups>

<run> 

<include name = "Smoke">  // This will run only methods where groups = "Smoke"

</run>

</groups>

<classes>

<class name = "tests.testClass1">

<class name = "tests.testClass2">

</classes>

</test>

</suite>


--

TestClass1{


@Test(groups = {"Smoke"})

public void m1(){

 System.out.println("Test method");


}

}

=======

# By Default the Order of Execution of TestNG methods is Alphabetical

=======

# Helper attributes in TestNG: groups, dependsOnMethods etc.

=======

# What if a test case in TestNG is dependent on other Test case i.e bebute.fore executing a test case u wan't some other test case to be executed first?

Ans: You can use the dependsOnMethods attribute which will first execute the methods mentioned by the attri

Eg.,:

Class TestClass1{


public void SQLvalidations() {

System.out.println("Test method m1");

}

@Test(dependsOnMethods= {"SQLvalidations"})

public void APItest() {

System.out.println("Test method m2");

}

@Test

public void uiValidations() {

System.out.println("Test method m3");

}

@Test(dependsOnMethods= {"APItest","uiValidations"})  // Here APItest and uiValidations methods will run before this method

public void otherValidations() {

System.out.println("Test method m4");

}

--> Here SQLvalidations method will run before the APItest method.

========


#Suppose there is a test method which you want to skip?

Ans: use enabled attribute in testNG.


Eg.,

@Test(enabled = false)

public void testMethod1(){

}


========

#Parameterized tests using testNG:

- Suppose you want to send a value as parameter to all tests.

 Parameters like appn URL which is common for all tests, you can use parameter tag in testNG.xml and @Parameters annotation in the test Class.

 

 Eg., 

 <suite>

<test>

<parameter name = "URL" value = "https://www.google.com"/>

<parameter name = "username" value = "kadu"/>

<classes>

<class name = "tests.testClass1">

</classes>

</test>

 </suite>



 - TestClass1{

 

@Parameters(String url, String username, String password)

@Test

public void m1(String url, String username, String password){

System.out.println("Parameter url: "+url);

}

public void m2(){}

 

}


 --> O/p: Parameter url: https://www.google.com

=======

# DataProvider in testNG:



public class ExcelData {


// Pls note here DataProvider method is in different Class:

@DataProvider(name = "ExcelDataProvider")

public static Object[][] getData() {

Object data[][] = new Object[3][2];

data[0][0] = "krunal";

data[0][1] = "xyz*123";

data[1][0] = "pallavi";

data[1][1] = "pal@123";

data[2][0] = "alka";

data[2][1] = "al@145";

return data;

}


}


//The following method will run 3 times as the dataProvider returns an object array of 3 rows and 2 columns

@Test(dataProvider = "ExcelDataProvider", dataProviderClass = ExcelData.class)

public void APItest1(String username, String password) {

System.out.println("APItest1 testClass2");

System.out.println("usernmame: "+username);

System.out.println("password: "+password);


}



========

#Listeners in TestNG:

- If you want to write some code to take a screenshot on test failure or anything like that you can use the ITestListener Interface in TestNG

- If you want to use Listeners you must implement the ITestListener interface.


ITestListener interface has following methods which should be overriden by the implemented class:


onTestStart(): An onTestStart() is invoked only when any test method gets started.

onTestSuccess(): An onTestSuccess() method is executed on the success of a test method.

onTestFailure(): An onTestFailure() method is invoked when test method fails.

onTestSkipped(): An onTestSkipped() run only when any test method has been skipped.

onTestFailedButWithinSuccessPercentage(): This method is invoked each time when the test method fails but within success percentage.

onStart(): An onStart() method is executed on the start of a <test> tag

onFinish(): An onFinish() method is executed on end of a <test> tag


======

Q. How do you run only selected test cases in testNG.

Ans:- There are 3 ways to do so:


1. By using enabled Helper attribute.


@Test(enabled=true)


Sample testng script to run the class.


<suite name = "Suite">

   <test name = "test">

 

     <classes>

         <class name = "TestClass" />

      </classes>

   

   </test>

</suite>

Second method is to setup the group details at Test annotation.



2. By using groups in TestNG:


@Test(group = {functionalTest} )


Sample script to run the class

<suite name = "Suite">

   <test name = "test">   

      <groups>

         <run>

            <include name = "functionalTest" />

         </run>

      </groups>

      <classes>

         <class name = "TestClass" />

      </classes>

      </test>

</suite>


3. Without using annotation , we can skip few cases in selenium testing by following the script in testng Suite

   With Include Option:

<suite name = "Suite"> 

   <test name = "test">   

      <classes> 

         <class name = "TestClass">

<methods>

<include name= "FirstCase"/>

<include name= "SecondCase"/>

<include name= "ThirdCase"/>

</methods>

</class> 

      </classes>   

   </test>

</suite>


OR With Exclude Option:


<suite name = "Suite"> 

   <test name = "test">   

      <classes> 

         <class name = "TestClass">

<methods>

<exclude name= "FourthCase"/>

<exclude name= "FifthCase"/>

</methods>

</class> 

      </classes>   

   </test>

</suite>



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