Priority in TestNG with multiple classes

Question

I\'m facing with the following problem: I created two classes which include @Tests with priority attribute:

@Test( priority = 1 )
public void testA1() {
             


        

Answer 1

In your suite xml use group-by-instances="true"

Sample, where TestClass1 and TestClass2 has the same content as yours

<suite thread-count="2" verbose="10" name="testSuite" parallel="tests">
<test verbose="2" name="MytestCase" group-by-instances="true">
    <classes>
        <class name="com.crazytests.dataproviderissue.TestClass1" />
        <class name="com.crazytests.dataproviderissue.TestClass2" />
    </classes>
</test>
</suite> 

I get the output

testA1

testA2

testA3

testB1

testB2

testB3

Answer 2

In my case I've separated classes into different tests in testng.xml file and priorities worked as in earlier versions used to.

<suite name="Suite1" verbose="1">
<test name="TVS_AUTO_TESTS 1">
    <classes>
        <class name="TVS_auto_tests.CheckLoginTests"/>
    </classes>
</test>
<test name="TVS_AUTO_TESTS 2">
    <classes>
        <class name="TVS_auto_tests.PageNavigationTests"/>
    </classes>
</test>

Answer 3

Group the test methods of first class and put dependsOnGroups in test methods of 2nd class.So execution will be proper as per the expectation shown below

ClassOne is as follows

    @Test( priority = 1,groups="FirstClass" )
    public void testA1() {
        System.out.println("testA1");
    }

    @Test( priority = 2,groups="FirstClass" )
    public void testA2() {
        System.out.println("testA2");
    }

    @Test( priority = 3,groups="FirstClass" )
    public void testA3() {
        System.out.println("testA3");
    }

ClassTwo is as follows

    @Test( priority = 1,dependsOnGroups="FirstClass")
    public void testB1() {
        System.out.println("testB1");
    }

    @Test( priority = 2,dependsOnGroups="FirstClass" )
    public void testB2() {
        System.out.println("testB2");
    }

    @Test( priority = 3,dependsOnGroups="FirstClass" )
    public void testB3() {
        System.out.println("testB3");
    }

And Finally testng.xml is

<suite name="Suite">
  <test thread-count="5" name="Test">
    <classes>
      <class name="TestCMD.ClassOne"/>
      <class name="TestCMD.ClassTwo"/>
    </classes>
  </test> <!-- Test -->
</suite> <!-- Suite -->

It gives the same output as per priority given in both the classes and order also

Answer 4

You can just provide @Test(testName="test1") / @Test(testName="test2") at the top of each class, and the priorities will be automatically grouped per class. Of course you keep the existing annotations.

Answer 5

The most correct way is to use dependsOnMethods. Priority levels are global for test (don't mix with test-methods which are annotated with @Test). In other words: when testng runs test (from <test> tag) it groups methods by priorities and then run it. In your case both testA1 and testB1 have priority=1, so will be executed at the beginning.

Answer 6

you should change the priority on B test to be like this

    @Test( priority = 4 )
    public void testB1() {
        System.out.println("testB1");
    }

    @Test( priority = 5 )
    public void testB2() {
        System.out.println("testB2");
    }

    @Test( priority = 6 )
    public void testB3() {
        System.out.println("testB3");
    }

and no changes for XML because it runs as priority