java - testng not running in priority order when dependsOnMethods is specified -

whenever specify priority , dependsonmethods on @test annotated method, order of execution of test methods not according priority. why so? here test class demonstrate issue:

package unittest.testngtestcases;  import org.testng.annotations.test;  public class testngtest1 {     @test(priority=1)     public void t1()     {         system.out.println("running 1");     }     @test(priority=2,dependsonmethods="t1")     public void t2()     {         system.out.println("running 2");     }     @test(priority=3,dependsonmethods="t2")     public void t3()     {         system.out.println("running 3");     }     @test(priority=4)     public void t4()     {         system.out.println("running 4");     } } 

actual output :

running 1 running 4 running 2 running 3  =============================================== tests suite total tests run: 4, failures: 0, skips: 0 =============================================== 

expected output :

running 1 running 2 running 3 running 4  =============================================== tests suite total tests run: 4, failures: 0, skips: 0 =============================================== 

the order of test execution should have been t1, t2, t3, t4. why t4 getting executed after t1, when t2 , t3 have higher priority t4?

tia

all independent methods (that not have @dependsonmethods dependency) executed first. methods dependency executed. if there ambiguity in execution order after ordering, priority comes picture.

this ordering scheme:

1. execute independent methods (methods without @dependsonmethods annotation)
2. if there ambiguity in ordering use priority resolve ambiguity independent methods
3. execute dependent methods in order of dependency
4. if there ambiguity in ordering use priority resolve ambiguity dependent methods
5. if there still ambiguity (due not using priority or 2 methods having same priority) order them based on alphabetical order.

now ambiguity resolved since no 2 methods can have same name.