test_concurrency.py

from nose.tools import ok_, eq_
from pyvirtualdisplay.display import Display
from threading import Thread
from pyvirtualdisplay import abstractdisplay


def test_with():
    abstractdisplay.RANDOMIZE_DISPLAY_NR = False
    ls = [0, 0]
    
    def f1():
        ls[0] = Display()
#         d1.start()
    
    def f2():
        ls[1] = Display()
#         d2.start()
        
    t1 = Thread(target=f1)
    t2 = Thread(target=f2)
    
    t1.start()
    t2.start()
    
    t1.join()
    t2.join()
    
#     print ls

    dv1 = ls[0].new_display_var
    dv2 = ls[1].new_display_var

#     print dv1
#     print dv2
    
    ok_(dv1 != dv2)
    
#     ok_(0)