Code snippet for https://stackoverflow.com/a/55719931/679824

CreateUser.java

package com.rationaleemotions.stackoverflow.qn55692848;

import org.testng.annotations.Test;

public class CreateUser {

  @Test(priority = 1)
  public void one() {}

  @Test(priority = 2)
  public void two() {}

  @Test(priority = 3)
  public void three() {}

  @Test(priority = 4)
  public void four() {}

  @Test(priority = 5)
  public void five() {}
}

execution_output.txt

...
... TestNG 7.0.0-beta5 by Cédric Beust (cedric@beust.com)
...
Executing com.rationaleemotions.stackoverflow.qn55692848.CreateUser.one on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.CreateUser.two on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.CreateUser.three on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.CreateUser.four on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.CreateUser.five on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Login.one on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Login.two on thread [1]

Executing com.rationaleemotions.stackoverflow.qn55692848.Login.three on thread [1]

Executing com.rationaleemotions.stackoverflow.qn55692848.Login.five on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Login.four on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.LostPassword.one on thread [1]

Executing com.rationaleemotions.stackoverflow.qn55692848.LostPassword.two on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.LostPassword.three on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.LostPassword.four on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.LostPassword.five on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Forms.one on thread [1]

Executing com.rationaleemotions.stackoverflow.qn55692848.Forms.two on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Forms.three on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Forms.four on thread [1]

Executing com.rationaleemotions.stackoverflow.qn55692848.Forms.five on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.OperatorDashboard.one on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.OperatorDashboard.two on thread [1]



Executing com.rationaleemotions.stackoverflow.qn55692848.OperatorDashboard.four on thread [1]

Executing com.rationaleemotions.stackoverflow.qn55692848.OperatorDashboard.five on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.OperatorDashboard.three on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Reports.one on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Reports.two on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Reports.three on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Reports.four on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.Reports.five on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.SubmitterDashboard.one on thread [1]

Executing com.rationaleemotions.stackoverflow.qn55692848.SubmitterDashboard.two on thread [1]

Executing com.rationaleemotions.stackoverflow.qn55692848.SubmitterDashboard.three on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.SubmitterDashboard.four on thread [1]
Executing com.rationaleemotions.stackoverflow.qn55692848.SubmitterDashboard.five on thread [1]
PASSED: one
PASSED: two
PASSED: three
PASSED: four
PASSED: five
PASSED: one
PASSED: two
PASSED: three
PASSED: four
PASSED: five
PASSED: one
PASSED: two
PASSED: three
PASSED: four
PASSED: five
PASSED: one
PASSED: two
PASSED: three
PASSED: four
PASSED: five
PASSED: one
PASSED: two
PASSED: three
PASSED: four
PASSED: five
PASSED: one
PASSED: two
PASSED: three
PASSED: four
PASSED: five
PASSED: one
PASSED: two
PASSED: three
PASSED: four
PASSED: five

===============================================
    xx
    Tests run: 35, Failures: 0, Skips: 0
===============================================

===============================================
xx-TestSuite
Total tests run: 35, Passes: 35, Failures: 0, Skips: 0
===============================================


Process finished with exit code 0

Forms.java

package com.rationaleemotions.stackoverflow.qn55692848;

import org.testng.annotations.Test;

public class Forms {

  @Test(priority = 1)
  public void one() {}

  @Test(priority = 2)
  public void two() {}

  @Test(priority = 3)
  public void three() {}

  @Test(priority = 4)
  public void four() {}

  @Test(priority = 5)
  public void five() {}
}

Login.java

package com.rationaleemotions.stackoverflow.qn55692848;

import org.testng.annotations.Test;

public class Login {

  @Test(priority = 1)
  public void one() {}

  @Test(priority = 2)
  public void two() {}

  @Test(priority = 3)
  public void three() {}

  @Test(priority = 4)
  public void four() {}

  @Test(priority = 5)
  public void five() {}
}

LostPassword.java

package com.rationaleemotions.stackoverflow.qn55692848;

import org.testng.annotations.Test;

public class LostPassword {

  @Test(priority = 1)
  public void one() {}

  @Test(priority = 2)
  public void two() {}

  @Test(priority = 3)
  public void three() {}

  @Test(priority = 4)
  public void four() {}

  @Test(priority = 5)
  public void five() {}
}

OperatorDashboard.java

package com.rationaleemotions.stackoverflow.qn55692848;

import org.testng.annotations.Test;

public class OperatorDashboard {

  @Test(priority = 1)
  public void one() {}

  @Test(priority = 2)
  public void two() {}

  @Test(priority = 3)
  public void three() {}

  @Test(priority = 4)
  public void four() {}

  @Test(priority = 5)
  public void five() {}
}

Reports

package com.rationaleemotions.stackoverflow.qn55692848;

import org.testng.annotations.Test;

public class Reports {

  @Test(priority = 1)
  public void one() {}

  @Test(priority = 2)
  public void two() {}

  @Test(priority = 3)
  public void three() {}

  @Test(priority = 4)
  public void four() {}

  @Test(priority = 5)
  public void five() {}
}

SubmitterDashboard.java

package com.rationaleemotions.stackoverflow.qn55692848;

import org.testng.annotations.Test;

public class SubmitterDashboard {

  @Test(priority = 1)
  public void one() {}

  @Test(priority = 2)
  public void two() {}

  @Test(priority = 3)
  public void three() {}

  @Test(priority = 4)
  public void four() {}

  @Test(priority = 5)
  public void five() {}
}

testing.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="xx-TestSuite" parallel="false" preserve-order="true" verbose="2">
  <listeners>
    <listener
      class-name="com.rationaleemotions.stackoverflow.qn55692848.TrackingListener"/>
  </listeners>
  <test name="xx">
    <classes>
      <class name="com.rationaleemotions.stackoverflow.qn55692848.CreateUser"/>
      <class name="com.rationaleemotions.stackoverflow.qn55692848.Login"/>
      <class name="com.rationaleemotions.stackoverflow.qn55692848.LostPassword"/>
      <class name="com.rationaleemotions.stackoverflow.qn55692848.Forms"/>
      <class name="com.rationaleemotions.stackoverflow.qn55692848.OperatorDashboard"/>
      <class name="com.rationaleemotions.stackoverflow.qn55692848.Reports"/>
      <class name="com.rationaleemotions.stackoverflow.qn55692848.SubmitterDashboard"/>
    </classes>
  </test>
</suite>