Parameterizing Tests

package com.gaurav.testNG;

import org.testng.Assert;
import org.testng.annotations.Test;
import org.testng.annotations.DataProvider;

public class DataProvider1 {

    @Test(dataProvider = "provideNumbers")
    public void test(int number, int expected) {
        Assert.assertEquals(number + 10, expected);
    }

    @DataProvider(name = "provideNumbers")
    public Object[][] provideData() {

        return new Object[][] { { 10, 20 }, { 100, 110 }, { 200, 210 } };
    }

}