--- /dev/null
+import unittest
+from test import test_support
+
+import sys, UserDict, cStringIO
+
+
+class DictTest(unittest.TestCase):
+ def test_constructor(self):
+ # calling built-in types without argument must return empty
+ self.assertEqual(dict(), {})
+ self.assert_(dict() is not {})
+
+ def test_bool(self):
+ self.assert_(not {})
+ self.assert_({1: 2})
+ self.assert_(bool({}) is False)
+ self.assert_(bool({1: 2}) is True)
+
+ def test_keys(self):
+ d = {}
+ self.assertEqual(d.keys(), [])
+ d = {'a': 1, 'b': 2}
+ k = d.keys()
+ self.assert_(d.has_key('a'))
+ self.assert_(d.has_key('b'))
+
+ self.assertRaises(TypeError, d.keys, None)
+
+ def test_values(self):
+ d = {}
+ self.assertEqual(d.values(), [])
+ d = {1:2}
+ self.assertEqual(d.values(), [2])
+
+ self.assertRaises(TypeError, d.values, None)
+
+ def test_items(self):
+ d = {}
+ self.assertEqual(d.items(), [])
+
+ d = {1:2}
+ self.assertEqual(d.items(), [(1, 2)])
+
+ self.assertRaises(TypeError, d.items, None)
+
+ def test_has_key(self):
+ d = {}
+ self.assert_(not d.has_key('a'))
+ d = {'a': 1, 'b': 2}
+ k = d.keys()
+ k.sort()
+ self.assertEqual(k, ['a', 'b'])
+
+ self.assertRaises(TypeError, d.has_key)
+
+ def test_contains(self):
+ d = {}
+ self.assert_(not ('a' in d))
+ self.assert_('a' not in d)
+ d = {'a': 1, 'b': 2}
+ self.assert_('a' in d)
+ self.assert_('b' in d)
+ self.assert_('c' not in d)
+
+ self.assertRaises(TypeError, d.__contains__)
+
+ def test_len(self):
+ d = {}
+ self.assertEqual(len(d), 0)
+ d = {'a': 1, 'b': 2}
+ self.assertEqual(len(d), 2)
+
+ def test_getitem(self):
+ d = {'a': 1, 'b': 2}
+ self.assertEqual(d['a'], 1)
+ self.assertEqual(d['b'], 2)
+ d['c'] = 3
+ d['a'] = 4
+ self.assertEqual(d['c'], 3)
+ self.assertEqual(d['a'], 4)
+ del d['b']
+ self.assertEqual(d, {'a': 4, 'c': 3})
+
+ self.assertRaises(TypeError, d.__getitem__)
+
+ class BadEq(object):
+ def __eq__(self, other):
+ raise Exc()
+
+ d = {}
+ d[BadEq()] = 42
+ self.assertRaises(KeyError, d.__getitem__, 23)
+
+ class Exc(Exception): pass
+
+ class BadHash(object):
+ fail = False
+ def __hash__(self):
+ if self.fail:
+ raise Exc()
+ else:
+ return 42
+
+ x = BadHash()
+ d[x] = 42
+ x.fail = True
+ self.assertRaises(Exc, d.__getitem__, x)
+
+ def test_clear(self):
+ d = {1:1, 2:2, 3:3}
+ d.clear()
+ self.assertEqual(d, {})
+
+ self.assertRaises(TypeError, d.clear, None)
+
+ def test_update(self):
+ d = {}
+ d.update({1:100})
+ d.update({2:20})
+ d.update({1:1, 2:2, 3:3})
+ self.assertEqual(d, {1:1, 2:2, 3:3})
+
+ d.update()
+ self.assertEqual(d, {1:1, 2:2, 3:3})
+
+ self.assertRaises((TypeError, AttributeError), d.update, None)
+
+ class SimpleUserDict:
+ def __init__(self):
+ self.d = {1:1, 2:2, 3:3}
+ def keys(self):
+ return self.d.keys()
+ def __getitem__(self, i):
+ return self.d[i]
+ d.clear()
+ d.update(SimpleUserDict())
+ self.assertEqual(d, {1:1, 2:2, 3:3})
+
+ class Exc(Exception): pass
+
+ d.clear()
+ class FailingUserDict:
+ def keys(self):
+ raise Exc
+ self.assertRaises(Exc, d.update, FailingUserDict())
+
+ class FailingUserDict:
+ def keys(self):
+ class BogonIter:
+ def __init__(self):
+ self.i = 1
+ def __iter__(self):
+ return self
+ def next(self):
+ if self.i:
+ self.i = 0
+ return 'a'
+ raise Exc
+ return BogonIter()
+ def __getitem__(self, key):
+ return key
+ self.assertRaises(Exc, d.update, FailingUserDict())
+
+ class FailingUserDict:
+ def keys(self):
+ class BogonIter:
+ def __init__(self):
+ self.i = ord('a')
+ def __iter__(self):
+ return self
+ def next(self):
+ if self.i <= ord('z'):
+ rtn = chr(self.i)
+ self.i += 1
+ return rtn
+ raise StopIteration
+ return BogonIter()
+ def __getitem__(self, key):
+ raise Exc
+ self.assertRaises(Exc, d.update, FailingUserDict())
+
+ class badseq(object):
+ def __iter__(self):
+ return self
+ def next(self):
+ raise Exc()
+
+ self.assertRaises(Exc, {}.update, badseq())
+
+ self.assertRaises(ValueError, {}.update, [(1, 2, 3)])
+
+ def test_fromkeys(self):
+ self.assertEqual(dict.fromkeys('abc'), {'a':None, 'b':None, 'c':None})
+ d = {}
+ self.assert_(not(d.fromkeys('abc') is d))
+ self.assertEqual(d.fromkeys('abc'), {'a':None, 'b':None, 'c':None})
+ self.assertEqual(d.fromkeys((4,5),0), {4:0, 5:0})
+ self.assertEqual(d.fromkeys([]), {})
+ def g():
+ yield 1
+ self.assertEqual(d.fromkeys(g()), {1:None})
+ self.assertRaises(TypeError, {}.fromkeys, 3)
+ class dictlike(dict): pass
+ self.assertEqual(dictlike.fromkeys('a'), {'a':None})
+ self.assertEqual(dictlike().fromkeys('a'), {'a':None})
+ self.assert_(type(dictlike.fromkeys('a')) is dictlike)
+ self.assert_(type(dictlike().fromkeys('a')) is dictlike)
+ class mydict(dict):
+ def __new__(cls):
+ return UserDict.UserDict()
+ ud = mydict.fromkeys('ab')
+ self.assertEqual(ud, {'a':None, 'b':None})
+ self.assert_(isinstance(ud, UserDict.UserDict))
+ self.assertRaises(TypeError, dict.fromkeys)
+
+ class Exc(Exception): pass
+
+ class baddict1(dict):
+ def __init__(self):
+ raise Exc()
+
+ self.assertRaises(Exc, baddict1.fromkeys, [1])
+
+ class BadSeq(object):
+ def __iter__(self):
+ return self
+ def next(self):
+ raise Exc()
+
+ self.assertRaises(Exc, dict.fromkeys, BadSeq())
+
+ class baddict2(dict):
+ def __setitem__(self, key, value):
+ raise Exc()
+
+ self.assertRaises(Exc, baddict2.fromkeys, [1])
+
+ def test_copy(self):
+ d = {1:1, 2:2, 3:3}
+ self.assertEqual(d.copy(), {1:1, 2:2, 3:3})
+ self.assertEqual({}.copy(), {})
+ self.assertRaises(TypeError, d.copy, None)
+
+ def test_get(self):
+ d = {}
+ self.assert_(d.get('c') is None)
+ self.assertEqual(d.get('c', 3), 3)
+ d = {'a' : 1, 'b' : 2}
+ self.assert_(d.get('c') is None)
+ self.assertEqual(d.get('c', 3), 3)
+ self.assertEqual(d.get('a'), 1)
+ self.assertEqual(d.get('a', 3), 1)
+ self.assertRaises(TypeError, d.get)
+ self.assertRaises(TypeError, d.get, None, None, None)
+
+ def test_setdefault(self):
+ # dict.setdefault()
+ d = {}
+ self.assert_(d.setdefault('key0') is None)
+ d.setdefault('key0', [])
+ self.assert_(d.setdefault('key0') is None)
+ d.setdefault('key', []).append(3)
+ self.assertEqual(d['key'][0], 3)
+ d.setdefault('key', []).append(4)
+ self.assertEqual(len(d['key']), 2)
+ self.assertRaises(TypeError, d.setdefault)
+
+ class Exc(Exception): pass
+
+ class BadHash(object):
+ fail = False
+ def __hash__(self):
+ if self.fail:
+ raise Exc()
+ else:
+ return 42
+
+ x = BadHash()
+ d[x] = 42
+ x.fail = True
+ self.assertRaises(Exc, d.setdefault, x, [])
+
+ def test_popitem(self):
+ # dict.popitem()
+ for copymode in -1, +1:
+ # -1: b has same structure as a
+ # +1: b is a.copy()
+ for log2size in range(12):
+ size = 2**log2size
+ a = {}
+ b = {}
+ for i in range(size):
+ a[repr(i)] = i
+ if copymode < 0:
+ b[repr(i)] = i
+ if copymode > 0:
+ b = a.copy()
+ for i in range(size):
+ ka, va = ta = a.popitem()
+ self.assertEqual(va, int(ka))
+ kb, vb = tb = b.popitem()
+ self.assertEqual(vb, int(kb))
+ self.assert_(not(copymode < 0 and ta != tb))
+ self.assert_(not a)
+ self.assert_(not b)
+
+ d = {}
+ self.assertRaises(KeyError, d.popitem)
+
+ def test_pop(self):
+ # Tests for pop with specified key
+ d = {}
+ k, v = 'abc', 'def'
+ d[k] = v
+ self.assertRaises(KeyError, d.pop, 'ghi')
+
+ self.assertEqual(d.pop(k), v)
+ self.assertEqual(len(d), 0)
+
+ self.assertRaises(KeyError, d.pop, k)
+
+ # verify longs/ints get same value when key > 32 bits (for 64-bit archs)
+ # see SF bug #689659
+ x = 4503599627370496L
+ y = 4503599627370496
+ h = {x: 'anything', y: 'something else'}
+ self.assertEqual(h[x], h[y])
+
+ self.assertEqual(d.pop(k, v), v)
+ d[k] = v
+ self.assertEqual(d.pop(k, 1), v)
+
+ self.assertRaises(TypeError, d.pop)
+
+ class Exc(Exception): pass
+
+ class BadHash(object):
+ fail = False
+ def __hash__(self):
+ if self.fail:
+ raise Exc()
+ else:
+ return 42
+
+ x = BadHash()
+ d[x] = 42
+ x.fail = True
+ self.assertRaises(Exc, d.pop, x)
+
+ def test_mutatingiteration(self):
+ d = {}
+ d[1] = 1
+ try:
+ for i in d:
+ d[i+1] = 1
+ except RuntimeError:
+ pass
+ else:
+ self.fail("changing dict size during iteration doesn't raise Error")
+
+ def test_repr(self):
+ d = {}
+ self.assertEqual(repr(d), '{}')
+ d[1] = 2
+ self.assertEqual(repr(d), '{1: 2}')
+ d = {}
+ d[1] = d
+ self.assertEqual(repr(d), '{1: {...}}')
+
+ class Exc(Exception): pass
+
+ class BadRepr(object):
+ def __repr__(self):
+ raise Exc()
+
+ d = {1: BadRepr()}
+ self.assertRaises(Exc, repr, d)
+
+ def test_le(self):
+ self.assert_(not ({} < {}))
+ self.assert_(not ({1: 2} < {1L: 2L}))
+
+ class Exc(Exception): pass
+
+ class BadCmp(object):
+ def __eq__(self, other):
+ raise Exc()
+
+ d1 = {BadCmp(): 1}
+ d2 = {1: 1}
+ try:
+ d1 < d2
+ except Exc:
+ pass
+ else:
+ self.fail("< didn't raise Exc")
+
+def test_main():
+ test_support.run_unittest(
+ DictTest,
+ )
+
+if __name__ == "__main__":
+ test_main()
projects / python / commitdiff