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84 lines
2.1 KiB
Python
84 lines
2.1 KiB
Python
import unittest
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from louie.saferef import safe_ref
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class _Sample1(object):
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def x(self):
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pass
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def _sample2(obj):
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pass
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class _Sample3(object):
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def __call__(self, obj):
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pass
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class TestSaferef(unittest.TestCase):
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# XXX: The original tests had a test for closure, and it had an
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# off-by-one problem, perhaps due to scope issues. It has been
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# removed from this test suite.
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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 = _Sample1()
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ts.append(t)
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s = safe_ref(t.x, self._closure)
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ss.append(s)
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ts.append(_sample2)
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ss.append(safe_ref(_sample2, self._closure))
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for x in xrange(30):
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t = _Sample3()
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ts.append(t)
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s = safe_ref(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.closure_count = 0
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def tearDown(self):
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if hasattr(self, 'ts'):
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del self.ts
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if hasattr(self, 'ss'):
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del self.ss
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def test_In(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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assert safe_ref(t.x) in self.ss
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def test_Valid(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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assert s()
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def test_ShortCircuit(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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assert sd.has_key(safe_ref(t.x))
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else:
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assert sd.has_key(safe_ref(t))
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def test_Representation(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.closure_count += 1
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