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Can Selenium use multi threading in one browser?
Selenium can use multi−threading in one browser with the help of TestNG framework. TestNG provides the feature of parallel execution which works on the concept of Java multi−threading.
To execute tests based on various parameters, the TestNG has an XML file where we have the configurations. The attributes parallel and thread−count are used for parallel execution.
The parallel attributes can have the following values −
Classes − to execute all tests in a class within a one thread.
Instances − to execute all methods in the same instance within one thread.
Tests − to execute all methods in the same tag within one thread.
Methods − to execute methods in different threads.
The thread−count attribute determines the count of threads that we want to have while executing tests.
Example
import org.testng.annotations.Test;
import org.testng.annotations.AfterClass;
public class TestNG14 {
@Test
public void testCase1() {
System.out.println("This is the first Test Case");
}
@Test
public void testCase2() {
System.out.println("This is the second Test Case");
}
@Test
public void testCase3() {
System.out.println("This is the third Test Case");
}
//executed after all methods in the same class
@AfterClass
public void afterClass() {
System.out.println("This will execute after the Class");
}
}Example
Code Implementation of xml file.
<!DOCTYPE suite SYSTEM "https://testng.org/testng−1.0.dtd" > <!−−parallel set to methods with thread count 2−−> <suite name="Test−Suite" parallel="methods" thread−count="2"> <test name="Tutorialspoint Test" > <classes> <class name="TestNG14" /> </classes> </test> </suite>
Output
TestNG results in a format of report.
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