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How to perform data parameterization in TestNG?
We can perform data parameterization in TestNG. The parameterization in execution in TestNG can be done in the following ways −
data parameterization with @Parameters annotation.
data parameterization with @DataProvider annotation.
Example
Code Implementation of TestNG xml file with @Parameter annotation.
<?xml version = "1.0" encoding = "UTF-8"?> <!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" > <suite name = "Tutorialspoint Test"> <parameter name = "Url" value="https://www.tutorial.com"/> <test name = "Regression Cycle 1"> <classes> <class name = "TestParameter" /> </classes> </test> </suite>
We can pass values at runtime to the test methods by defining <parameter> in the TestNG xml file.
Example
import org.testng.annotations.Parameters; import org.testng.annotations.Test; public class TestParameter { @Test @Parameters("Url") public void loginwithUrl(String urlname) { System.out.println("The value of url is : " + urlname);} }
Java class files have @Parameters with (“Url”).
Code Implementation with @DataProvider annotation.
@DataProvider(name = "QuestionSearch") public Object[][] quest_anssearch(){ return new Object[][] { { “Tutorialspoint”, “Java”}, { “Python”, “PyCharm”}, }; } @Test(dataProvider = "QuestionSearch ") public void userInput(String subject, String lang){ System.out.println("The values are : " + subject +”“+ lang); }
We can pass multiple data at runtime with the help of @DataProvider in the Java class file.
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