How to retrieve all test methods name in TestNG suite?
Last Updated :
12 Sep, 2024
TestNG is a powerful testing framework that provides easy configuration and management of test cases. One useful feature of TestNG is the ability to retrieve and display all test methods in a test suite. In this example, we demonstrate how to access and print the names of all test methods defined in a suite after the execution of the test cases.
How to Retrieve All Test Methods Names in TestNG Suite?
Retrieving the names of all test methods in a TestNG suite can be useful for reporting, logging, or debugging purposes. Using the ITestContext interface, you can easily access detailed information about the test execution, including the test methods.
ITestContext is an interface provided by TestNG that captures various details about the test run, such as:
- Test Name: The name of the test group or suite.
- Start and End Times: Time information about the test run.
- Test Methods: Information about all test methods included in the test.
In the context of retrieving test method names, the ITestContext interface provides the getAllTestMethods() method. This method returns an array of ITestNGMethod objects, each representing a test method. Each ITestNGMethod object contains metadata about the test method, such as its name, parameters, and status.
By iterating over the array of ITestNGMethod objects, you can retrieve the name of each test method using getMethodName(). This allows you to access all the test methods defined in your suite and print them, or use them for other purposes such as reporting.
Approach
- Create a Test Class: Start by creating a class, for example, TestClass, which contains the test methods annotated with @Test. Each method represents a test case, and these methods will be part of the TestNG suite.
- Annotate Methods with @Test: Define multiple test methods using the @Test annotation. These test methods will perform specific actions when the test suite is run. In this case, there are three methods: testA, testB, and testC.
- Implement @AfterSuite Method: Use the @AfterSuite annotation to create a method that will be executed after all test methods in the suite have run. Inside this method, use the ITestContext object to retrieve all the test methods that were part of the suite.
- Retrieve Test Methods: Using the ITestContext.getAllTestMethods() method, you can obtain an array of ITestNGMethod objects, which contain information about each test method, including its name.
- Print Test Method Names: Loop through the array of test methods and print the name of each method using method.getMethodName().
- Configure TestNG XML: Define an XML configuration file (testng.xml) to configure the suite and specify the test class that contains the test methods.
- Run the Test Suite: Finally, run the TestNG suite. After the test execution is complete, the names of all test methods will be printed as part of the @AfterSuite logic.
Example Code
Java
package test;
import org.testng.ITestContext;
import org.testng.ITestNGMethod;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.Test;
public class TestClass {
@Test
public void testA() {
System.out.println("Executing testA");
}
@Test
public void testB() {
System.out.println("Executing testB");
}
@Test
public void testC() {
System.out.println("Executing testC");
}
// After the test suite is executed, retrieve and print all test method names
@AfterSuite
public void afterSuite(ITestContext context) {
// Retrieve all test methods in the current context
ITestNGMethod[] allTestMethods = context.getAllTestMethods();
// Print the names of all test methods
System.out.println("All test methods in the suite:");
for (ITestNGMethod method : allTestMethods) {
System.out.println(method.getMethodName());
}
}
}
testng.xml
XML
<?xml version = "1.0" encoding = "UTF-8"?>
<suite name="Suite">
<test name="Test Suite">
<classes>
<class name="test.TestClass">
</class>
</classes>
</test>
</suite>
Output:
After running the TestNG suite, the console output will display the names of all test methods in the suite:
OutputConclusion
Retrieving all test method names in a TestNG suite is a simple yet powerful technique for managing and analyzing your test runs. By leveraging the ITestContext interface, you can access all the test methods in your suite through the getAllTestMethods() method. This allows you to loop through and retrieve the names of each test method after the test execution is completed. Such functionality can be beneficial for logging, reporting, and debugging purposes, making it easier to monitor test executions and improve the overall quality of your tests.