Ka8. Nearly my friend. The following from Ryanair, the largest European operator.....
Say, on a 737 NG:
Do you perform an engine / APU / cargo fire test on every turn around? No.
Do you test the configuration warning before every take off? Yes, three separate times before EVERY flight.
Do both PF and PNF check the flight controls before every take off? Yes, absolutely!!
Do you perform the EGPWS / TCAS / STALL / Overspeed test on every turn around? No.
Do you do a light test on every turn around? No.
For every european operator I know, the answer is no to all above...
(And obviously, the answer is yes to all above for the first flight of the day)