| from test_support import verify, verbose, TestFailed |
| from UserList import UserList |
| |
| def sortdict(d): |
| keys = d.keys() |
| keys.sort() |
| lst = [] |
| for k in keys: |
| lst.append("%r: %r" % (k, d[k])) |
| return "{%s}" % ", ".join(lst) |
| |
| 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}) |
| |
| try: |
| g() |
| except TypeError, err: |
| print "TypeError:", err |
| else: |
| print "should raise TypeError: not enough arguments; expected 1, got 0" |
| |
| try: |
| g(*()) |
| except TypeError, err: |
| print "TypeError:", err |
| else: |
| print "should raise TypeError: not enough arguments; expected 1, got 0" |
| |
| try: |
| g(*(), **{}) |
| except TypeError, 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 AttributeError, attr: |
| pass |
| else: |
| print "should raise AttributeError: __len__" |
| |
| class Nothing: |
| def __len__(self): |
| return 5 |
| try: |
| g(*Nothing()) |
| except AttributeError, attr: |
| pass |
| else: |
| print "should raise AttributeError: __getitem__" |
| |
| class Nothing: |
| def __len__(self): |
| return 5 |
| def __getitem__(self, i): |
| if i < 3: |
| return i |
| else: |
| raise IndexError, i |
| 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, 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, err: |
| print err |
| else: |
| print "should raise TypeError: keyword parameter redefined" |
| |
| try: |
| f(**{1:2}) |
| except TypeError, err: |
| print err |
| else: |
| print "should raise TypeError: keywords must be strings" |
| |
| try: |
| h(**{'e': 2}) |
| except TypeError, err: |
| print err |
| else: |
| print "should raise TypeError: unexpected keyword argument: e" |
| |
| try: |
| h(*h) |
| except TypeError, err: |
| print err |
| else: |
| print "should raise TypeError: * argument must be a tuple" |
| |
| try: |
| dir(*h) |
| except TypeError, err: |
| print err |
| else: |
| print "should raise TypeError: * argument must be a tuple" |
| |
| try: |
| None(*h) |
| except TypeError, err: |
| print err |
| else: |
| print "should raise TypeError: * argument must be a tuple" |
| |
| try: |
| h(**h) |
| except TypeError, err: |
| print err |
| else: |
| print "should raise TypeError: ** argument must be a dictionary" |
| |
| try: |
| dir(**h) |
| except TypeError, err: |
| print err |
| else: |
| print "should raise TypeError: ** argument must be a dictionary" |
| |
| try: |
| None(**h) |
| except TypeError, err: |
| print err |
| else: |
| print "should raise TypeError: ** argument must be a dictionary" |
| |
| try: |
| dir(b=1,**{'b':1}) |
| except TypeError, 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, err: |
| print err |
| try: |
| print Foo.method(1, *(2, 3)) |
| except TypeError, err: |
| print err |
| |
| # 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) + map( |
| lambda x: '%s="%s"' % (x, x), defargs) |
| if vararg: arglist.append('*' + vararg) |
| if kwarg: arglist.append('**' + kwarg) |
| decl = 'def %s(%s): print "ok %s", a, b, d, e, v, 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.func_name, args, sortdict(kwdict), '->', |
| try: apply(func, args, kwdict) |
| except TypeError, err: print err |