cpython/Lib/test/test_extcall.py

286 lines
6.1 KiB
Python

from test.test_support import verify, verbose, TestFailed, sortdict
from UserList import UserList
from UserDict import UserDict
def e(a, b):
print(a, b)
def f(*a, **k):
print(a, sortdict(k))
def g(x, *y, **z):
print(x, y, sortdict(z))
def h(j=1, a=2, h=3):
print(j, a, h)
f()
f(1)
f(1, 2)
f(1, 2, 3)
f(1, 2, 3, *(4, 5))
f(1, 2, 3, *[4, 5])
f(1, 2, 3, *UserList([4, 5]))
f(1, 2, 3, **{'a':4, 'b':5})
f(1, 2, 3, *(4, 5), **{'a':6, 'b':7})
f(1, 2, 3, x=4, y=5, *(6, 7), **{'a':8, 'b':9})
f(1, 2, 3, **UserDict(a=4, b=5))
f(1, 2, 3, *(4, 5), **UserDict(a=6, b=7))
f(1, 2, 3, x=4, y=5, *(6, 7), **UserDict(a=8, b=9))
# Verify clearing of SF bug #733667
try:
e(c=3)
except TypeError:
pass
else:
print("should raise TypeError: e() got an unexpected keyword argument 'c'")
try:
g()
except TypeError as err:
print("TypeError:", err)
else:
print("should raise TypeError: not enough arguments; expected 1, got 0")
try:
g(*())
except TypeError as err:
print("TypeError:", err)
else:
print("should raise TypeError: not enough arguments; expected 1, got 0")
try:
g(*(), **{})
except TypeError as err:
print("TypeError:", err)
else:
print("should raise TypeError: not enough arguments; expected 1, got 0")
g(1)
g(1, 2)
g(1, 2, 3)
g(1, 2, 3, *(4, 5))
class Nothing: pass
try:
g(*Nothing())
except TypeError as attr:
pass
else:
print("should raise TypeError")
class Nothing:
def __len__(self):
return 5
try:
g(*Nothing())
except TypeError as attr:
pass
else:
print("should raise TypeError")
class Nothing:
def __len__(self):
return 5
def __getitem__(self, i):
if i < 3:
return i
else:
raise IndexError, i
g(*Nothing())
class Nothing:
def __init__(self):
self.c = 0
def __iter__(self):
return self
try:
g(*Nothing())
except TypeError as attr:
pass
else:
print("should raise TypeError")
class Nothing:
def __init__(self):
self.c = 0
def __iter__(self):
return self
def __next__(self):
if self.c == 4:
raise StopIteration
c = self.c
self.c += 1
return c
g(*Nothing())
# make sure the function call doesn't stomp on the dictionary?
d = {'a': 1, 'b': 2, 'c': 3}
d2 = d.copy()
verify(d == d2)
g(1, d=4, **d)
print(sortdict(d))
print(sortdict(d2))
verify(d == d2, "function call modified dictionary")
# what about willful misconduct?
def saboteur(**kw):
kw['x'] = locals() # yields a cyclic kw
return kw
d = {}
kw = saboteur(a=1, **d)
verify(d == {})
# break the cycle
del kw['x']
try:
g(1, 2, 3, **{'x':4, 'y':5})
except TypeError as err:
print(err)
else:
print("should raise TypeError: keyword parameter redefined")
try:
g(1, 2, 3, a=4, b=5, *(6, 7), **{'a':8, 'b':9})
except TypeError as err:
print(err)
else:
print("should raise TypeError: keyword parameter redefined")
try:
f(**{1:2})
except TypeError as err:
print(err)
else:
print("should raise TypeError: keywords must be strings")
try:
h(**{'e': 2})
except TypeError as err:
print(err)
else:
print("should raise TypeError: unexpected keyword argument: e")
try:
h(*h)
except TypeError as err:
print(err)
else:
print("should raise TypeError: * argument must be a tuple")
try:
dir(*h)
except TypeError as err:
print(err)
else:
print("should raise TypeError: * argument must be a tuple")
try:
None(*h)
except TypeError as err:
print(err)
else:
print("should raise TypeError: * argument must be a tuple")
try:
h(**h)
except TypeError as err:
print(err)
else:
print("should raise TypeError: ** argument must be a dictionary")
try:
dir(**h)
except TypeError as err:
print(err)
else:
print("should raise TypeError: ** argument must be a dictionary")
try:
None(**h)
except TypeError as err:
print(err)
else:
print("should raise TypeError: ** argument must be a dictionary")
try:
dir(b=1,**{'b':1})
except TypeError as err:
print(err)
else:
print("should raise TypeError: dir() got multiple values for keyword argument 'b'")
def f2(*a, **b):
return a, b
d = {}
for i in range(512):
key = 'k%d' % i
d[key] = i
a, b = f2(1, *(2, 3), **d)
print(len(a), len(b), b == d)
class Foo:
def method(self, arg1, arg2):
return arg1 + arg2
x = Foo()
print(Foo.method(*(x, 1, 2)))
print(Foo.method(x, *(1, 2)))
try:
print(Foo.method(*(1, 2, 3)))
except TypeError as err:
pass
else:
print('expected a TypeError for unbound method call')
try:
print(Foo.method(1, *(2, 3)))
except TypeError as err:
pass
else:
print('expected a TypeError for unbound method call')
# A PyCFunction that takes only positional parameters should allow an
# empty keyword dictionary to pass without a complaint, but raise a
# TypeError if the dictionary is non-empty.
id(1, **{})
try:
id(1, **{"foo": 1})
except TypeError:
pass
else:
raise TestFailed, 'expected TypeError; no exception raised'
a, b, d, e, v, k = 'A', 'B', 'D', 'E', 'V', 'K'
funcs = []
maxargs = {}
for args in ['', 'a', 'ab']:
for defargs in ['', 'd', 'de']:
for vararg in ['', 'v']:
for kwarg in ['', 'k']:
name = 'z' + args + defargs + vararg + kwarg
arglist = list(args) + ['%s="%s"' % (x, x) for x in defargs]
if vararg: arglist.append('*' + vararg)
if kwarg: arglist.append('**' + kwarg)
decl = (('def %s(%s): print("ok %s", a, b, d, e, v, ' +
'type(k) is type ("") and k or sortdict(k))')
% (name, ', '.join(arglist), name))
exec(decl)
func = eval(name)
funcs.append(func)
maxargs[func] = len(args + defargs)
for name in ['za', 'zade', 'zabk', 'zabdv', 'zabdevk']:
func = eval(name)
for args in [(), (1, 2), (1, 2, 3, 4, 5)]:
for kwargs in ['', 'a', 'd', 'ad', 'abde']:
kwdict = {}
for k in kwargs: kwdict[k] = k + k
print(func.__name__, args, sortdict(kwdict), '->', end=' ')
try: func(*args, **kwdict)
except TypeError as err: print(err)