mirror of https://github.com/django/django.git
73 lines
1.8 KiB
Python
73 lines
1.8 KiB
Python
import unittest
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from django.dispatch.saferef import safeRef
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from django.utils.six.moves import xrange
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class Test1(object):
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def x(self):
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pass
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def test2(obj):
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pass
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class Test2(object):
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def __call__(self, obj):
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pass
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class SaferefTests(unittest.TestCase):
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def setUp(self):
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ts = []
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ss = []
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for x in xrange(5000):
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t = Test1()
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ts.append(t)
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s = safeRef(t.x, self._closure)
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ss.append(s)
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ts.append(test2)
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ss.append(safeRef(test2, self._closure))
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for x in xrange(30):
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t = Test2()
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ts.append(t)
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s = safeRef(t, self._closure)
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ss.append(s)
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self.ts = ts
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self.ss = ss
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self.closureCount = 0
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def tearDown(self):
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del self.ts
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del self.ss
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def testIn(self):
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"""Test the "in" operator for safe references (cmp)"""
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for t in self.ts[:50]:
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self.assertTrue(safeRef(t.x) in self.ss)
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def testValid(self):
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"""Test that the references are valid (return instance methods)"""
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for s in self.ss:
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self.assertTrue(s())
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def testShortCircuit(self):
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"""Test that creation short-circuits to reuse existing references"""
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sd = {}
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for s in self.ss:
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sd[s] = 1
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for t in self.ts:
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if hasattr(t, 'x'):
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self.assertTrue(safeRef(t.x) in sd)
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else:
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self.assertTrue(safeRef(t) in sd)
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def testRepresentation(self):
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"""Test that the reference object's representation works
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XXX Doesn't currently check the results, just that no error
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is raised
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"""
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repr(self.ss[-1])
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def _closure(self, ref):
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"""Dumb utility mechanism to increment deletion counter"""
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self.closureCount +=1
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