Test driven exercise
Code testing, patterns, profiles and optimisation. example from a Well House Consultants training course
More on Code testing, patterns, profiles and optimisation. [link]
Source code: annie.py Module: Y212
""" Example ..
Exercise ... here is some data about tables
Put this in a data file:
Rect 1900 1900 Oak
Rect 1800 2400 Pine
Circ 2000 Maple
Rect 1500 2400 Birch
Write a factory and series of classes so this works:
rest = 
for lyne in open("cheznous.txt"):
seats = 0
materials = 
for tab in rest:
seats += tab.getseats()
print "We can seat",seats,"at tables of", " ".join(materials)
current.age = age
current.hisfactor = factor
ea = this.age * this.hisfactor
itsa = this.__class__.__name__
called = this.getName()
return "A %s animal called %s" % (itsa,called)
a1 = this.getEffectiveAge()
a2 = that.getEffectiveAge()
if a2 > a1: return that
# "P\tdog\tGypsy\t5\t7\tBlack and White\n"
fields = rawline.strip().split("\t")
ob = None
if fields == "P":
ob = pet(fields,fields,
elif fields == "F":
ob = farm(fields,
# error handler?
sofar = collect
for posn in range(1,len(collect)):
sofar = sofar.getOlder(collect[posn])
# getOldest = staticmethod(getOldest)
current.name = name
return "We DON'T give farm animals names"
if __name__ == "__main__":
billy = pet("William","dog",3,7,"Black and White")
tufty = pet("Tufty","G.Pig",2,14,"Brown and White")
ermintrude = farm("Cow",3,10,"Fresian")
fromFile = "P\tdog\tGypsy\t5\t7\tBlack and White\n"
another = animal.factory(fromFile)
mybeasts = (billy, tufty, ermintrude, another)
for beast in mybeasts:
a1 = beast.getEffectiveAge()
print a1, beast
older = billy.getOlder(tufty)
print "older is",older
oldest = animal.getOldest(mybeasts)
print "oldest is",oldest
Learn about this subject
This module and example are covered on the following public courses:
* Learning to program in Python
* Python Programming
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