def test_log_preset():

->     log = py.log.get(test_log_preset) 

       l2 = []

       log.set_sub(x1=None, x2=l2.append)

       l3 = []

       log2 = py.log.get(test_log_preset, 

                         x2=None,

                         x3=l3.append)

       log2.x2("hello")

       log2.x3("world")

       assert l2[0].strcontent() == "hello"

       assert l3[0].strcontent() == "world"