Python Programming _selenium2library Source Analysis

[Package] Keywords

All keywords encapsulated

[Class] _waiting.py

Wait for the condition of the function to judge, replace sleep, in order to execute more use cases with conditional logic, can effectively save the execution wait time, quickly locate the problem

_wait_until (self, timeout, error, function, *args)

Overview: Until function (*args) is true, return None, false to return error, time-out timeout

Parameters:

Error: Initializing to timeout exception

function: Conditional judgment, return TRUE or False

Return:none or Error

 1  def  _wait_until (self, timeout, Error, function, *args):  2  error = Error.re Place ( " <TIMEOUT>  "  , Self._format_timeout (timeout)  3  def< /span> Wait_func ():   4  return  None if  function (*args) else   error   5  self._wait_until_no_error (timeout, wait_func) 

_wait_until_no_error (self, timeout, wait_func, *args)

Overview: Return when Wait_func (*args) is false, timeout throws a timeout exception

1     def_wait_until_no_error (self, timeout,Wait_func,* args):2Timeout = robot.utils.timestr_to_secs (timeout)ifTimeout is  notNoneElseSelf._timeout_in_secs3MaxTime = Time.time () +Timeout4          whileTrue:5             Timeout_error = wait_func (*args) 6             if  notTimeout_error:return7             ifTime.time () >MaxTime:8                 Raiseassertionerror (timeout_error)9Time.sleep (0.2)

The final call is _wait_until_no_error (self, timeout, wait_func, *args). In the layer call, the Python syntax used, one is the function nesting, but "everything is the object", function can also do parameter passing

Python Programming _selenium2library Source Analysis