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#Copyright ReportLab Europe Ltd. 2000-2012
#see license.txt for license details
"""
Tests for TypedPropertyCollection class.
"""
__version__='''$Id$'''
from reportlab.lib.testutils import setOutDir,makeSuiteForClasses, printLocation
setOutDir(__name__)
import os, sys, copy
from os.path import join, basename, splitext
import unittest
from reportlab.graphics.widgetbase import PropHolder, TypedPropertyCollection
from reportlab.lib.attrmap import AttrMap, AttrMapValue
from reportlab.lib.validators import isNumber
TPC = TypedPropertyCollection
class PH(PropHolder):
_attrMap = AttrMap(
a = AttrMapValue(isNumber),
b = AttrMapValue(isNumber)
)
class APH(PH):
def __init__(self):
self.a = 1
class BPH(APH):
def __init__(self):
APH.__init__(self)
def __getattr__(self,name):
if name=='b': return -1
raise AttributeError
class TPCTestCase(unittest.TestCase):
"Test TypedPropertyCollection class."
def test0(self):
"Test setting an invalid collective attribute."
t = TPC(PH)
try:
t.c = 42
except AttributeError:
pass
def test1(self):
"Test setting a valid collective attribute."
t = TPC(PH)
t.a = 42
assert t.a == 42
def test2(self):
"Test setting a valid collective attribute with an invalid value."
t = TPC(PH)
try:
t.a = 'fourty-two'
except AttributeError:
pass
def test3(self):
"Test setting a valid collective attribute with a convertible invalid value."
t = TPC(PH)
t.a = '42'
assert t.a == '42' # Or should it rather be an integer?
def test4(self):
"Test accessing an unset collective attribute."
t = TPC(PH)
try:
t.a
except AttributeError:
pass
def test5(self):
"Test overwriting a collective attribute in one slot."
t = TPC(PH)
t.a = 42
t[0].a = 4242
assert t[0].a == 4242
def test6(self):
"Test overwriting a one slot attribute with a collective one."
t = TPC(PH)
t[0].a = 4242
t.a = 42
assert t[0].a == 4242
def test7(self):
"Test to ensure we can handle classes with __getattr__ methods"
a=TypedPropertyCollection(APH)
b=TypedPropertyCollection(BPH)
a.a=3
b.a=4
try:
a.b
assert 1, "Shouldn't be able to see a.b"
except AttributeError:
pass
a.b=0
assert a.b==0, "Wrong value for "+str(a.b)
assert b.b==-1, "This should call __getattr__ special"
b.b=0
assert a[0].b==0
assert b[0].b==-1, "Class __getattr__ should return -1"
def makeSuite():
return makeSuiteForClasses(TPCTestCase)
#noruntests
if __name__ == "__main__":
unittest.TextTestRunner().run(makeSuite())
printLocation()
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