beremiz

Tests: Enhance robustness of stdout driven waiting state in Sikuli based tests.
wxPython4
2022-03-05, Edouard Tisserant
ce366d67a5b7
Tests: Enhance robustness of stdout driven waiting state in Sikuli based tests.

Some tests were randomly passing, because from time to time waiting for idle was skiped. It was combination of multiple problems :
- buffering on stdout (now use readline + flush for each write to log)
- it is sometime required to wait for activity before waiting for timeout added "WaitForChangeAndIdle" to "stdoutIdleObserver"
<?xml version='1.0' encoding='utf-8'?>
<PyFile xmlns:xhtml="http://www.w3.org/1999/xhtml">
<variables>
<variable name="Test_Python_Var" type="INT" initial="4"/>
<variable name="Second_Python_Var" type="INT" initial="5"/>
</variables>
<globals>
<xhtml:p><![CDATA[
import time,sys,ctypes
Python_to_C_Call = PLCBinary.Python_to_C_Call
Python_to_C_Call.restype = ctypes.c_int
Python_to_C_Call.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_int)]
def MyPythonFunc(arg):
i = ctypes.c_int()
if(Python_to_C_Call(arg, i)):
res = i.value
print "toC:", arg, "from C:", res, "FBID:", FBID
else:
print "Failed Python_to_C_Call failed"
res = None
print "Python read PLC global :",PLCGlobals.Test_Python_Var
print "Python read PLC global Grumpf :",PLCGlobals.Grumpf
PLCGlobals.Second_Python_Var = 789
sys.stdout.flush()
return res
async_error_test_code = """
def badaboom():
tuple()[0]
import wx
def badaboomwx():
wx.CallAfter(badaboom)
from threading import Timer
a = Timer(3, badaboom)
a.start()
b = Timer(6, badaboomwx)
b.start()
"""
]]></xhtml:p>
</globals>
<init>
<xhtml:p><![CDATA[
global x, y
x = 2
y = 5
print "py_runtime init:", x, ",", y
]]></xhtml:p>
</init>
<cleanup>
<xhtml:p><![CDATA[
print "py_runtime cleanup"
]]></xhtml:p>
</cleanup>
<start>
<xhtml:p><![CDATA[
global x, y
print "py_runtime start", x * x + y * y
]]></xhtml:p>
</start>
<stop>
<xhtml:p><![CDATA[
print "py_runtime stop"
]]></xhtml:p>
</stop>
</PyFile>