Running test cases with Regex

In this topic, we will use the regular expressions to include/exclude test methods from the test suite execution.

Now we will consider an example to understand how to use Regex for running test cases in TestNG.

Step 1: Let's create a java project.

package com.TheDeveloperBlog;

import org.testng.annotations.Test;

public class test 
{
  @Test
  public void WebLoginCarLoan()
  {
	  System.out.println("WebLoginCarLoan");
  }
  @Test
  public void MobileLoginCarLoan()
  {
	  System.out.println("MobileLoginCarLoan");
  }
  @Test
  public void MobileLoginPersonalLoan()
  {
	  System.out.println("MobileLoginPersonalLoan");
  }
  @Test
  public void MobileLoginHomeLoan()
  {
	  System.out.println("MobileLoginHomeLoan");
  }
  @Test
  public void LoginAPICarLoan()
  {
	  System.out.println("LoginAPICarLoan");
  }
}

Step 2: Till now, we have created the java file. If we want to include only those test cases which are starting with a keyword "Mobile". To achieve this, we need to configure testing.xml file and after configuration, it would look like:

Note: The pattern /sequence .*/ searches the string which is starting with the sequence keyword including space character. The '*' asterisk represents the remaining characters.

In the above testing.xml configuration file, we include all the test cases represented by the starting keyword 'Mobile' with a pattern Mobile.* in <include> tag.

Step 3: Run the testng.xml file. Right click on the testng.xml file and move the cursor down, click on the 1 TestNG Suite.

Output

In the above case, we use regular expression in a <include> tag. We can also use the regular expression in <exclude> tag as well.

Let's understand through an example.

Step 1: Let's create a simple java project.

package com.TheDeveloperBlog;

import org.testng.annotations.Test;

public class exclude 
{
@Test
	public void employeeid()
 {
	 System.out.println("EmployeeID");
 }
 @Test
 public void employee_name()
 {
	 System.out.println("Employee Name");
 }
 @Test
 public void employee_address()
 {
	 System.out.println("Employee Address");
 }
 @Test
 public void owner_name()
 {
	 System.out.println("Owner Name");
 }
}

Step 2: Now we want to exclude those test methods which are starting with a keyword "employee", we use a regular expression in a <exclude> tag. To achieve this, we need to configure the testng.xml file and its configuration would look like:

Step 3: Run the testng.xml file.

Output