Suite dependency/ordering in TestNG

FastTest

import org.testng.ITestContext;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

public class FastTest {
	ITestContext context;

	@BeforeMethod
	public void setup(ITestContext context) {
		this.context = context;
	}

	@Test
	public void test1() {
		System.out.println("Now Running: " + context.getSuite().getName()
				+ ", FastTest");
		try {
			Thread.sleep(1000);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

SlowTest

import org.testng.ITestContext;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

public class SlowTest {
	ITestContext context;

	@BeforeMethod
	public void setup(ITestContext context) {
		this.context = context;
	}

	@Test
	public void test2() {
		System.out.println("Now Running: " + context.getSuite().getName()
				+ ", SlowTest");
		try {
			Thread.sleep(5000);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

TestRunner

import java.util.ArrayList;
import java.util.List;

import org.testng.TestNG;
import org.testng.xml.*;

public class TestRunner {

	static TestNG testng;

	public static void main(String[] args) {

		try {
			testng = new TestNG();
			testng.setPreserveOrder(true);
			testng.setSuiteThreadPoolSize(2);

			// testng.setVerbose(2);

			List<XmlSuite> suites = new ArrayList<XmlSuite>();
			// create 1 fast and 1 slow suite
			for (int i = 0; i < 2; i++) {
				XmlSuite suite = new XmlSuite();
				suite.setName("Suite " + i);
				// add 2 tests
				for (int j = 0; j < 2; j++) {
					XmlTest xmltest = new XmlTest(suite);
					List<XmlClass> classes = new ArrayList<XmlClass>();
					if (i % 2 == 0)
						classes.add(new XmlClass("FastTest"));
					else
						classes.add(new XmlClass("SlowTest"));
					xmltest.setXmlClasses(classes);
				}
				suites.add(suite);
			}
			// create 2 slow suites
			for (int i = 2; i < 4; i++) {
				XmlSuite suite = new XmlSuite();
				suite.setName("Suite " + i);
				// add 2 tests
				for (int j = 0; j < 2; j++) {
					XmlTest xmltest = new XmlTest(suite);
					List<XmlClass> classes = new ArrayList<XmlClass>();
					if (i % 2 == 0)
						classes.add(new XmlClass("FastTest"));
					else
						classes.add(new XmlClass("SlowTest"));
					xmltest.setXmlClasses(classes);
				}
				suites.add(suite);
			}

			testng.setXmlSuites(suites);
			testng.run();
		} catch (Exception e1) {
			e1.printStackTrace();
		}

	}
}

Output:

Now Running: Suite 0, FastTest
Now Running: Suite 1, SlowTest
Now Running: Suite 0, FastTest

Suite 0

Total tests run: 2, Failures: 0, Skips: 0

Now Running: Suite 2, FastTest
Now Running: Suite 2, FastTest

Suite 2

Total tests run: 2, Failures: 0, Skips: 0

Now Running: Suite 3, SlowTest
Now Running: Suite 1, SlowTest
Now Running: Suite 3, SlowTest

Suite 1

Total tests run: 2, Failures: 0, Skips: 0

Suite 3

Total tests run: 2, Failures: 0, Skips: 0