Executing multiple test sequentially with different parameters testng

Question

I was trying to run multiple test with different parameters sequentially using data providers, basically the scenario is suppose there are 5 test completing a test flow and

Answer 1

So my concern is that all test should run first with first parameter air and then again all test should execute with next parameter "earth"

Here is the output that i got for the input "air" and "earth"

Test-1 with data: Air
Test-2 with data: Air
Test-1 with data: Water
Test-2 with data: Water

Test Class - RandomTest

public class RandomTest {
    private String str = "";

    public RandomTest(String str) {
    this.str = str;
    }

    @Test
    public void firstTest() {
    System.out.println("Test-1 with data: "+str);
    }

    @Test
    public void secondTest() {
    System.out.println("Test-2 with data: "+str);
}}

Factory class - SampleFactory

public class SampleFactory {
@Factory(dataProvider="dp")
public Object[] createInstances(String str) {
    return new Object[] {new RandomTest(str)};
}

@DataProvider(name="dp")
public static Object[][] createData() {
    return new Object[][] {
            new Object[] { new String("Air") },
            new Object[] { new String("Water") }
    };
}}

Run the class SampleFactory from testng.xml, Please note: group-by-instances="true"

<suite name="Suite-A" verbose="1">
<test name="test" group-by-instances="true">
    <classes>
        <class name="tests.SampleFactory"></class>
    </classes>
</test>
</suite>

Ref: http://testng.org/doc/documentation-main.html#factories
Ref: http://java.dzone.com/articles/testng-run-tests-sequentially

Answer 2

You can change your parameters without code change, change only testng.xml file.

Your Java class:

 import org.testng.annotations.Parameters;
 import org.testng.annotations.Test;

 public class ParameterizedTest1 {
    @Test
    @Parameters("myName")
    public void parameterTest(String myName) {
       System.out.println("Parameterized value is : " + myName);
    }
 }

testng.xml:

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >

 <suite name="Suite1">
  <test name="test1">
    <parameter name="myName" value="manisha"/> 
    <classes>
       <class name="ParameterizedTest1" />
    </classes>
  </test>
 </suite>

http://www.tutorialspoint.com/testng/testng_parameterized_test.htm

Answer 3

You can use nose-ittr, its a nose extension for supporting parametrized testing.

example:

@ittr(number=[1, 2, 3, 4])  
def test_even(self):
    assert_equal(self.number % 2, 0)