mirror of
https://github.com/python/cpython.git
synced 2025-07-30 06:34:15 +00:00
Minor bugs in the __index__ code (PEP 357), with tests.
This commit is contained in:
Armin Rigo
parent
4ef3a23a35
commit
314861c568
3 changed files with 100 additions and 132 deletions
|
|
@ -10,82 +10,13 @@ class newstyle(object):
|
|||
def __index__(self):
|
||||
return self.ind
|
||||
|
||||
class ListTestCase(unittest.TestCase):
|
||||
class BaseTestCase(unittest.TestCase):
|
||||
def setUp(self):
|
||||
self.seq = [0,10,20,30,40,50]
|
||||
self.o = oldstyle()
|
||||
self.n = newstyle()
|
||||
self.o2 = oldstyle()
|
||||
self.n2 = newstyle()
|
||||
|
||||
def test_basic(self):
|
||||
self.o.ind = -2
|
||||
self.n.ind = 2
|
||||
assert(self.seq[self.n] == 20)
|
||||
assert(self.seq[self.o] == 40)
|
||||
assert(operator.index(self.o) == -2)
|
||||
assert(operator.index(self.n) == 2)
|
||||
|
||||
def test_error(self):
|
||||
self.o.ind = 'dumb'
|
||||
self.n.ind = 'bad'
|
||||
myfunc = lambda x, obj: obj.seq[x]
|
||||
self.failUnlessRaises(TypeError, operator.index, self.o)
|
||||
self.failUnlessRaises(TypeError, operator.index, self.n)
|
||||
self.failUnlessRaises(TypeError, myfunc, self.o, self)
|
||||
self.failUnlessRaises(TypeError, myfunc, self.n, self)
|
||||
|
||||
def test_slice(self):
|
||||
self.o.ind = 1
|
||||
self.o2.ind = 3
|
||||
self.n.ind = 2
|
||||
self.n2.ind = 4
|
||||
assert(self.seq[self.o:self.o2] == self.seq[1:3])
|
||||
assert(self.seq[self.n:self.n2] == self.seq[2:4])
|
||||
|
||||
class TupleTestCase(unittest.TestCase):
|
||||
def setUp(self):
|
||||
self.seq = (0,10,20,30,40,50)
|
||||
self.o = oldstyle()
|
||||
self.n = newstyle()
|
||||
self.o2 = oldstyle()
|
||||
self.n2 = newstyle()
|
||||
|
||||
|
||||
def test_basic(self):
|
||||
self.o.ind = -2
|
||||
self.n.ind = 2
|
||||
assert(self.seq[self.n] == 20)
|
||||
assert(self.seq[self.o] == 40)
|
||||
assert(operator.index(self.o) == -2)
|
||||
assert(operator.index(self.n) == 2)
|
||||
|
||||
def test_error(self):
|
||||
self.o.ind = 'dumb'
|
||||
self.n.ind = 'bad'
|
||||
myfunc = lambda x, obj: obj.seq[x]
|
||||
self.failUnlessRaises(TypeError, operator.index, self.o)
|
||||
self.failUnlessRaises(TypeError, operator.index, self.n)
|
||||
self.failUnlessRaises(TypeError, myfunc, self.o, self)
|
||||
self.failUnlessRaises(TypeError, myfunc, self.n, self)
|
||||
|
||||
def test_slice(self):
|
||||
self.o.ind = 1
|
||||
self.o2.ind = 3
|
||||
self.n.ind = 2
|
||||
self.n2.ind = 4
|
||||
assert(self.seq[self.o:self.o2] == self.seq[1:3])
|
||||
assert(self.seq[self.n:self.n2] == self.seq[2:4])
|
||||
|
||||
class StringTestCase(unittest.TestCase):
|
||||
def setUp(self):
|
||||
self.seq = "this is a test"
|
||||
self.o = oldstyle()
|
||||
self.n = newstyle()
|
||||
self.o2 = oldstyle()
|
||||
self.n2 = newstyle()
|
||||
|
||||
|
||||
def test_basic(self):
|
||||
self.o.ind = -2
|
||||
self.n.ind = 2
|
||||
|
|
@ -111,40 +42,86 @@ class StringTestCase(unittest.TestCase):
|
|||
assert(self.seq[self.o:self.o2] == self.seq[1:3])
|
||||
assert(self.seq[self.n:self.n2] == self.seq[2:4])
|
||||
|
||||
def test_repeat(self):
|
||||
self.o.ind = 3
|
||||
self.n.ind = 2
|
||||
assert(self.seq * self.o == self.seq * 3)
|
||||
assert(self.seq * self.n == self.seq * 2)
|
||||
assert(self.o * self.seq == self.seq * 3)
|
||||
assert(self.n * self.seq == self.seq * 2)
|
||||
|
||||
class UnicodeTestCase(unittest.TestCase):
|
||||
def setUp(self):
|
||||
self.seq = u"this is a test"
|
||||
self.o = oldstyle()
|
||||
self.n = newstyle()
|
||||
self.o2 = oldstyle()
|
||||
self.n2 = newstyle()
|
||||
def test_wrappers(self):
|
||||
n = self.n
|
||||
n.ind = 5
|
||||
assert n.__index__() == 5
|
||||
assert 6 .__index__() == 6
|
||||
assert -7L.__index__() == -7
|
||||
assert self.seq.__getitem__(n) == self.seq[5]
|
||||
assert self.seq.__mul__(n) == self.seq * 5
|
||||
assert self.seq.__rmul__(n) == self.seq * 5
|
||||
|
||||
def test_infinite_recusion(self):
|
||||
class Trap1(int):
|
||||
def __index__(self):
|
||||
return self
|
||||
class Trap2(long):
|
||||
def __index__(self):
|
||||
return self
|
||||
self.failUnlessRaises(TypeError, operator.getitem, self.seq, Trap1())
|
||||
self.failUnlessRaises(TypeError, operator.getitem, self.seq, Trap2())
|
||||
|
||||
|
||||
def test_basic(self):
|
||||
class ListTestCase(BaseTestCase):
|
||||
seq = [0,10,20,30,40,50]
|
||||
|
||||
def test_setdelitem(self):
|
||||
self.o.ind = -2
|
||||
self.n.ind = 2
|
||||
assert(self.seq[self.n] == self.seq[2])
|
||||
assert(self.seq[self.o] == self.seq[-2])
|
||||
assert(operator.index(self.o) == -2)
|
||||
assert(operator.index(self.n) == 2)
|
||||
lst = list('ab!cdefghi!j')
|
||||
del lst[self.o]
|
||||
del lst[self.n]
|
||||
lst[self.o] = 'X'
|
||||
lst[self.n] = 'Y'
|
||||
assert lst == list('abYdefghXj')
|
||||
|
||||
def test_error(self):
|
||||
self.o.ind = 'dumb'
|
||||
self.n.ind = 'bad'
|
||||
myfunc = lambda x, obj: obj.seq[x]
|
||||
self.failUnlessRaises(TypeError, operator.index, self.o)
|
||||
self.failUnlessRaises(TypeError, operator.index, self.n)
|
||||
self.failUnlessRaises(TypeError, myfunc, self.o, self)
|
||||
self.failUnlessRaises(TypeError, myfunc, self.n, self)
|
||||
lst = [5, 6, 7, 8, 9, 10, 11]
|
||||
lst.__setitem__(self.n, "here")
|
||||
assert lst == [5, 6, "here", 8, 9, 10, 11]
|
||||
lst.__delitem__(self.n)
|
||||
assert lst == [5, 6, 8, 9, 10, 11]
|
||||
|
||||
def test_slice(self):
|
||||
self.o.ind = 1
|
||||
self.o2.ind = 3
|
||||
self.n.ind = 2
|
||||
self.n2.ind = 4
|
||||
assert(self.seq[self.o:self.o2] == self.seq[1:3])
|
||||
assert(self.seq[self.n:self.n2] == self.seq[2:4])
|
||||
def test_inplace_repeat(self):
|
||||
self.o.ind = 2
|
||||
self.n.ind = 3
|
||||
lst = [6, 4]
|
||||
lst *= self.o
|
||||
assert lst == [6, 4, 6, 4]
|
||||
lst *= self.n
|
||||
assert lst == [6, 4, 6, 4] * 3
|
||||
|
||||
lst = [5, 6, 7, 8, 9, 11]
|
||||
l2 = lst.__imul__(self.n)
|
||||
assert l2 is lst
|
||||
assert lst == [5, 6, 7, 8, 9, 11] * 3
|
||||
|
||||
|
||||
class TupleTestCase(BaseTestCase):
|
||||
seq = (0,10,20,30,40,50)
|
||||
|
||||
class StringTestCase(BaseTestCase):
|
||||
seq = "this is a test"
|
||||
|
||||
class UnicodeTestCase(BaseTestCase):
|
||||
seq = u"this is a test"
|
||||
|
||||
|
||||
class XRangeTestCase(unittest.TestCase):
|
||||
|
||||
def test_xrange(self):
|
||||
n = newstyle()
|
||||
n.ind = 5
|
||||
assert xrange(1, 20)[n] == 6
|
||||
assert xrange(1, 20).__getitem__(n) == 6
|
||||
|
||||
|
||||
def test_main():
|
||||
|
|
@ -152,7 +129,8 @@ def test_main():
|
|||
ListTestCase,
|
||||
TupleTestCase,
|
||||
StringTestCase,
|
||||
UnicodeTestCase
|
||||
UnicodeTestCase,
|
||||
XRangeTestCase,
|
||||
)
|
||||
|
||||
if __name__ == "__main__":
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue