Is There a Simpler Method for Managing Test Order in TestNG?

Question

Is There a Simpler Method for Managing Test Order in TestNG?

Although I've come across similar questions, none have quite addressed my specific query... I'm currently using Selenium Webdriver 2.0 with TestNg and Java, and I'm in search of a more efficient way to manage the execution order of tests. All I really want is for the test cases to run in the same order as they are written in the classes. It just makes sense. It's simple. It's easy to maintain. And I find it surprising that this isn't the default behavior for testNg. (Why impose random ordering when it's not explicitly requested by the coder?)

As of now, I know I can manually add a list of methods to my testng xml file, but with 130 tests already (and many more to come!), maintaining such a method list will become increasingly cumbersome. For instance, if I were to add ten new test methods, I would need to remember to update all those methods in the xml file. What happens if I overlook adding one? I may never realize that it was skipped...

Thus, this approach would be quite challenging to maintain:

<test name="BVTQA01">
 <classes>
  <class name="TestPackage.BVT">
   <methods>
    <include name="testLogin"></include>
    <include name="testAddToCart"></include>
    ...
    <include name="test999 etc"></include>
   </methods>
  </class>
 </classes>
</test>

I also experimented with 'preserve-order':

<test name="BVTQA01" preserve-order="true">
 <classes>
  <class name="TestPackage.TestBVT" />
 </classes>
</test>

However, it seems to be disregarded unless I include a list of methods, which leads back to the maintenance nightmare of 'include name' lists...

So presently, I am simply listing my test classes in the xml file (as illustrated above - TestBVT containing 20 methods, etc.), and managing test execution order with 'depends on' annotations within the tests themselves. Nevertheless, this isn't an ideal solution because I end up creating dependencies on every single method. I prefer to eliminate dependencies where they aren't truly necessary. I only intend to utilize 'depends on' when there is a genuine dependency.

I've also explored options for automatically generating the xml from my @Test annotated methods. However, the proposed solutions lack clarity on how to actually implement them.

Any advice on getting testNg to execute my test classes sequentially, in the order they're written, without any random sorting or laborious list generation would be greatly appreciated. Thank you in advance,

JR

java selenium testng

Answer 1

Answer №1

If you need to run the TestNG programmatically, one way to do it is by following this code snippet:

package com.shn.test;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import javax.xml.parsers.ParserConfigurationException;

import org.testng.TestNG;
import org.testng.xml.XmlClass;
import org.testng.xml.XmlSuite;
import org.testng.xml.XmlTest;
import org.xml.sax.SAXException;

import com.shn.demos.RunDemo;

public class RunSuite{

    public static void main(String[] args)  {

        TestNG testNG = new TestNG();
        List<XmlSuite> suites = new ArrayList<XmlSuite>();

        //pass the name of Suite, Name of the groups to be executed & name of test
        suites.add(createSuite("SuiteDemo", "groupName1", "testName"));

        testNG.setSuiteThreadPoolSize(1);
        testNG.setXmlSuites(suites);

        testNG.run();
    }

    public static XmlSuite createSuite(String suiteName, String groupName, String testName) {
        XmlSuite suite = new XmlSuite();
        suite.setName(suiteName);
        suite.setParallel(XmlSuite.PARALLEL_NONE);

        LinkedHashMap<String, String> suiteParams = new LinkedHashMap<String, String>();
        //Put in the parameters out here which are required @ suite level
        suiteParams.put("SuiteKey1", "SuiteValue1");
        suiteParams.put("SuiteKey2", "SuiteValue2");
        suite.setParameters(suiteParams);

        XmlTest test = new XmlTest(suite);

        test.setName(testName);
        test.addIncludedGroup(groupName);
        //Put in the parametes out here wich are required @ test level
        test.addParameter("testKey1", "testValue1");
        test.addParameter("testKey2", "testValue2");

        List<XmlClass> clazzes = new ArrayList<XmlClass>();

        //This is your class under test
        XmlClass clazz = new XmlClass(Foo.class);
        clazzes.add(clazz);
        test.setClasses(clazzes);
        List<XmlTest> tests = new ArrayList<XmlTest>();
        tests.add(test);
        suite.setTests(tests);
        return suite;
    }
}

If you are looking to maintain order, you can try using setPreserveOrder() method. I haven't personally tested it, so let me know if it works for your specific needs.

Answer 2

If you need to run the TestNG programmatically, one way to do it is by following this code snippet:

package com.shn.test;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import javax.xml.parsers.ParserConfigurationException;

import org.testng.TestNG;
import org.testng.xml.XmlClass;
import org.testng.xml.XmlSuite;
import org.testng.xml.XmlTest;
import org.xml.sax.SAXException;

import com.shn.demos.RunDemo;

public class RunSuite{

    public static void main(String[] args)  {

        TestNG testNG = new TestNG();
        List<XmlSuite> suites = new ArrayList<XmlSuite>();

        //pass the name of Suite, Name of the groups to be executed & name of test
        suites.add(createSuite("SuiteDemo", "groupName1", "testName"));

        testNG.setSuiteThreadPoolSize(1);
        testNG.setXmlSuites(suites);

        testNG.run();
    }

    public static XmlSuite createSuite(String suiteName, String groupName, String testName) {
        XmlSuite suite = new XmlSuite();
        suite.setName(suiteName);
        suite.setParallel(XmlSuite.PARALLEL_NONE);

        LinkedHashMap<String, String> suiteParams = new LinkedHashMap<String, String>();
        //Put in the parameters out here which are required @ suite level
        suiteParams.put("SuiteKey1", "SuiteValue1");
        suiteParams.put("SuiteKey2", "SuiteValue2");
        suite.setParameters(suiteParams);

        XmlTest test = new XmlTest(suite);

        test.setName(testName);
        test.addIncludedGroup(groupName);
        //Put in the parametes out here wich are required @ test level
        test.addParameter("testKey1", "testValue1");
        test.addParameter("testKey2", "testValue2");

        List<XmlClass> clazzes = new ArrayList<XmlClass>();

        //This is your class under test
        XmlClass clazz = new XmlClass(Foo.class);
        clazzes.add(clazz);
        test.setClasses(clazzes);
        List<XmlTest> tests = new ArrayList<XmlTest>();
        tests.add(test);
        suite.setTests(tests);
        return suite;
    }
}

If you are looking to maintain order, you can try using setPreserveOrder() method. I haven't personally tested it, so let me know if it works for your specific needs.

Answer 3

Answer №2

To automatically generate priority annotations for each test method, you can implement and register the IAnnotationTransformer interface. This transformer utilizes javassist to read the method line number and assign it as a TestNG test priority.

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;

import javassist.*;

import org.testng.IAnnotationTransformer;
import org.testng.annotations.ITestAnnotation;

public class AssignTestPriorityTransformer implements IAnnotationTransformer
{
    static ClassPool s_ClassPool = ClassPool.getDefault(); 

    @Override
    public void transform(ITestAnnotation p_annotation, Class p_testClass, Constructor p_testConstructor, Method p_testMethod)
    {
        p_annotation.setPriority(getMethodLineNumber(p_testMethod));
    }
    
    private int getMethodLineNumber(Method p_testMethod)
    {
        try
        {
            CtClass cc = s_ClassPool.get(p_testMethod.getDeclaringClass().getCanonicalName());
            CtMethod methodX = cc.getDeclaredMethod(p_testMethod.getName());
            return methodX.getMethodInfo().getLineNumber(0);        
        }
        catch(Exception e)
        {
            throw new RuntimeException("Failed to retrieve line number of method "+p_testMethod, e);
        }
    }
}

Register this listener in your XML file:

<suite name="Suite" parallel="false">
<listeners>
    <listener class-name="AssignTestPriorityTransformer" />
</listeners>
<test name="All tests">
    <classes>
        <class name="tests.YourTests"/>
    </classes>
</test>
</suite>

The AssignTestPriorityTransformer ensures that methods annotated with @Test are processed in the same order as they are defined in the source code of the test class.

Answer 4

To automatically generate priority annotations for each test method, you can implement and register the IAnnotationTransformer interface. This transformer utilizes javassist to read the method line number and assign it as a TestNG test priority.

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;

import javassist.*;

import org.testng.IAnnotationTransformer;
import org.testng.annotations.ITestAnnotation;

public class AssignTestPriorityTransformer implements IAnnotationTransformer
{
    static ClassPool s_ClassPool = ClassPool.getDefault(); 

    @Override
    public void transform(ITestAnnotation p_annotation, Class p_testClass, Constructor p_testConstructor, Method p_testMethod)
    {
        p_annotation.setPriority(getMethodLineNumber(p_testMethod));
    }
    
    private int getMethodLineNumber(Method p_testMethod)
    {
        try
        {
            CtClass cc = s_ClassPool.get(p_testMethod.getDeclaringClass().getCanonicalName());
            CtMethod methodX = cc.getDeclaredMethod(p_testMethod.getName());
            return methodX.getMethodInfo().getLineNumber(0);        
        }
        catch(Exception e)
        {
            throw new RuntimeException("Failed to retrieve line number of method "+p_testMethod, e);
        }
    }
}

Register this listener in your XML file:

<suite name="Suite" parallel="false">
<listeners>
    <listener class-name="AssignTestPriorityTransformer" />
</listeners>
<test name="All tests">
    <classes>
        <class name="tests.YourTests"/>
    </classes>
</test>
</suite>

The AssignTestPriorityTransformer ensures that methods annotated with @Test are processed in the same order as they are defined in the source code of the test class.

Answer 5

Answer №3

Utilizing priority annotations can enhance your TestNG experience, even though they are not a standard feature of the framework. By incorporating priorities for all 130 tests, you gain a higher level of control over your testing process. You can find more information on priority annotations at:

Answer 6

Utilizing priority annotations can enhance your TestNG experience, even though they are not a standard feature of the framework. By incorporating priorities for all 130 tests, you gain a higher level of control over your testing process. You can find more information on priority annotations at:

Is There a Simpler Method for Managing Test Order in TestNG?

Answer №1

Answer №2

Answer №3

Similar questions

Renaming a list of Object[] in a JList: A step-by-step guide

What is the best way to create a list of JsonArrays within a JSON file using Java?

Having trouble constructing a selenium image within a Docker container

Issue encountered while using Selenium: Unable to successfully click the Close button on overlay when a second product is added to the cart. However, there is no problem clicking the Close button for the first item added

Changing font colors with POI: A step-by-step guide

Issue with starting the driver server for Selenium Edge Chromium in Java has caused a WebDriverException due to timeout

The dilemma surrounding implementing the Page Object Model in C# using Selenium is causing uncertainty

Exploring carousel elements in Selenium using Python

Breaking down objects and actions within the page object model with Selenium

Ensure that the web application is successfully logged into using MSTest, and verify that the application is fully loaded before proceeding

Selenium webdriver is having difficulty locating the element

Extract all relevant URLs and Hrefs from the web using web scraping techniques

The process of manipulating the content of an HTML textarea using Selenium with Python

Using Java to rotate an iOS device with Selenium

Searching for a specific element using XPath in Selenium

Protractor Error: Internet Explorer Launch Error Due to Inconsistent Protected Mode Settings Across Zones

"Implementing a Selenium Java script to wait for the invisibility of multiple elements

How to terminate a Selenium "click" thread after a timeout

Locate the text of an element that is not visible on the screen while the code is running

Selenium - enlarging an element fails, but shrinking it is successful