Python code coverage for Lib/test/test_extcall.py

#	count	content
1	n/a
2	n/a	"""Doctest for method/function calls.
3	n/a
4	n/a	We're going the use these types for extra testing
5	n/a
6	n/a	>>> from collections import UserList
7	n/a	>>> from collections import UserDict
8	n/a
9	n/a	We're defining four helper functions
10	n/a
11	n/a	>>> def e(a,b):
12	n/a	... print(a, b)
13	n/a
14	n/a	>>> def f(a, *k):
15	n/a	... print(a, support.sortdict(k))
16	n/a
17	n/a	>>> def g(x, y, *z):
18	n/a	... print(x, y, support.sortdict(z))
19	n/a
20	n/a	>>> def h(j=1, a=2, h=3):
21	n/a	... print(j, a, h)
22	n/a
23	n/a	Argument list examples
24	n/a
25	n/a	>>> f()
26	n/a	() {}
27	n/a	>>> f(1)
28	n/a	(1,) {}
29	n/a	>>> f(1, 2)
30	n/a	(1, 2) {}
31	n/a	>>> f(1, 2, 3)
32	n/a	(1, 2, 3) {}
33	n/a	>>> f(1, 2, 3, *(4, 5))
34	n/a	(1, 2, 3, 4, 5) {}
35	n/a	>>> f(1, 2, 3, *[4, 5])
36	n/a	(1, 2, 3, 4, 5) {}
37	n/a	>>> f(*[1, 2, 3], 4, 5)
38	n/a	(1, 2, 3, 4, 5) {}
39	n/a	>>> f(1, 2, 3, *UserList([4, 5]))
40	n/a	(1, 2, 3, 4, 5) {}
41	n/a	>>> f(1, 2, 3, [4, 5], [6, 7])
42	n/a	(1, 2, 3, 4, 5, 6, 7) {}
43	n/a	>>> f(1, [2, 3], 4, [5, 6], 7)
44	n/a	(1, 2, 3, 4, 5, 6, 7) {}
45	n/a	>>> f(UserList([1, 2]), UserList([3, 4]), 5, *UserList([6, 7]))
46	n/a	(1, 2, 3, 4, 5, 6, 7) {}
47	n/a
48	n/a	Here we add keyword arguments
49	n/a
50	n/a	>>> f(1, 2, 3, **{'a':4, 'b':5})
51	n/a	(1, 2, 3) {'a': 4, 'b': 5}
52	n/a	>>> f(1, 2, {'a': -1, 'b': 5}, {'a': 4, 'c': 6})
53	n/a	Traceback (most recent call last):
54	n/a	...
55	n/a	TypeError: f() got multiple values for keyword argument 'a'
56	n/a	>>> f(1, 2, **{'a': -1, 'b': 5}, a=4, c=6)
57	n/a	Traceback (most recent call last):
58	n/a	...
59	n/a	TypeError: f() got multiple values for keyword argument 'a'
60	n/a	>>> f(1, 2, a=3, {'a': 4}, {'a': 5})
61	n/a	Traceback (most recent call last):
62	n/a	...
63	n/a	TypeError: f() got multiple values for keyword argument 'a'
64	n/a	>>> f(1, 2, 3, [4, 5], *{'a':6, 'b':7})
65	n/a	(1, 2, 3, 4, 5) {'a': 6, 'b': 7}
66	n/a	>>> f(1, 2, 3, x=4, y=5, (6, 7), *{'a':8, 'b': 9})
67	n/a	(1, 2, 3, 6, 7) {'a': 8, 'b': 9, 'x': 4, 'y': 5}
68	n/a	>>> f(1, 2, 3, [4, 5], {'c': 8}, *{'a':6, 'b':7})
69	n/a	(1, 2, 3, 4, 5) {'a': 6, 'b': 7, 'c': 8}
70	n/a	>>> f(1, 2, 3, (4, 5), x=6, y=7, *{'a':8, 'b': 9})
71	n/a	(1, 2, 3, 4, 5) {'a': 8, 'b': 9, 'x': 6, 'y': 7}
72	n/a
73	n/a	>>> f(1, 2, 3, **UserDict(a=4, b=5))
74	n/a	(1, 2, 3) {'a': 4, 'b': 5}
75	n/a	>>> f(1, 2, 3, (4, 5), *UserDict(a=6, b=7))
76	n/a	(1, 2, 3, 4, 5) {'a': 6, 'b': 7}
77	n/a	>>> f(1, 2, 3, x=4, y=5, (6, 7), *UserDict(a=8, b=9))
78	n/a	(1, 2, 3, 6, 7) {'a': 8, 'b': 9, 'x': 4, 'y': 5}
79	n/a	>>> f(1, 2, 3, (4, 5), x=6, y=7, *UserDict(a=8, b=9))
80	n/a	(1, 2, 3, 4, 5) {'a': 8, 'b': 9, 'x': 6, 'y': 7}
81	n/a
82	n/a	Examples with invalid arguments (TypeErrors). We're also testing the function
83	n/a	names in the exception messages.
84	n/a
85	n/a	Verify clearing of SF bug #733667
86	n/a
87	n/a	>>> e(c=4)
88	n/a	Traceback (most recent call last):
89	n/a	...
90	n/a	TypeError: e() got an unexpected keyword argument 'c'
91	n/a
92	n/a	>>> g()
93	n/a	Traceback (most recent call last):
94	n/a	...
95	n/a	TypeError: g() missing 1 required positional argument: 'x'
96	n/a
97	n/a	>>> g(*())
98	n/a	Traceback (most recent call last):
99	n/a	...
100	n/a	TypeError: g() missing 1 required positional argument: 'x'
101	n/a
102	n/a	>>> g((), *{})
103	n/a	Traceback (most recent call last):
104	n/a	...
105	n/a	TypeError: g() missing 1 required positional argument: 'x'
106	n/a
107	n/a	>>> g(1)
108	n/a	1 () {}
109	n/a	>>> g(1, 2)
110	n/a	1 (2,) {}
111	n/a	>>> g(1, 2, 3)
112	n/a	1 (2, 3) {}
113	n/a	>>> g(1, 2, 3, *(4, 5))
114	n/a	1 (2, 3, 4, 5) {}
115	n/a
116	n/a	>>> class Nothing: pass
117	n/a	...
118	n/a	>>> g(*Nothing())
119	n/a	Traceback (most recent call last):
120	n/a	...
121	n/a	TypeError: g() argument after * must be an iterable, not Nothing
122	n/a
123	n/a	>>> class Nothing:
124	n/a	... def __len__(self): return 5
125	n/a	...
126	n/a
127	n/a	>>> g(*Nothing())
128	n/a	Traceback (most recent call last):
129	n/a	...
130	n/a	TypeError: g() argument after * must be an iterable, not Nothing
131	n/a
132	n/a	>>> class Nothing():
133	n/a	... def __len__(self): return 5
134	n/a	... def __getitem__(self, i):
135	n/a	... if i<3: return i
136	n/a	... else: raise IndexError(i)
137	n/a	...
138	n/a
139	n/a	>>> g(*Nothing())
140	n/a	0 (1, 2) {}
141	n/a
142	n/a	>>> class Nothing:
143	n/a	... def __init__(self): self.c = 0
144	n/a	... def __iter__(self): return self
145	n/a	... def __next__(self):
146	n/a	... if self.c == 4:
147	n/a	... raise StopIteration
148	n/a	... c = self.c
149	n/a	... self.c += 1
150	n/a	... return c
151	n/a	...
152	n/a
153	n/a	>>> g(*Nothing())
154	n/a	0 (1, 2, 3) {}
155	n/a
156	n/a	Check for issue #4806: Does a TypeError in a generator get propagated with the
157	n/a	right error message? (Also check with other iterables.)
158	n/a
159	n/a	>>> def broken(): raise TypeError("myerror")
160	n/a	...
161	n/a
162	n/a	>>> g(*(broken() for i in range(1)))
163	n/a	Traceback (most recent call last):
164	n/a	...
165	n/a	TypeError: myerror
166	n/a
167	n/a	>>> class BrokenIterable1:
168	n/a	... def __iter__(self):
169	n/a	... raise TypeError('myerror')
170	n/a	...
171	n/a	>>> g(*BrokenIterable1())
172	n/a	Traceback (most recent call last):
173	n/a	...
174	n/a	TypeError: myerror
175	n/a
176	n/a	>>> class BrokenIterable2:
177	n/a	... def __iter__(self):
178	n/a	... yield 0
179	n/a	... raise TypeError('myerror')
180	n/a	...
181	n/a	>>> g(*BrokenIterable2())
182	n/a	Traceback (most recent call last):
183	n/a	...
184	n/a	TypeError: myerror
185	n/a
186	n/a	>>> class BrokenSequence:
187	n/a	... def __getitem__(self, idx):
188	n/a	... raise TypeError('myerror')
189	n/a	...
190	n/a	>>> g(*BrokenSequence())
191	n/a	Traceback (most recent call last):
192	n/a	...
193	n/a	TypeError: myerror
194	n/a
195	n/a	Make sure that the function doesn't stomp the dictionary
196	n/a
197	n/a	>>> d = {'a': 1, 'b': 2, 'c': 3}
198	n/a	>>> d2 = d.copy()
199	n/a	>>> g(1, d=4, **d)
200	n/a	1 () {'a': 1, 'b': 2, 'c': 3, 'd': 4}
201	n/a	>>> d == d2
202	n/a	True
203	n/a
204	n/a	What about willful misconduct?
205	n/a
206	n/a	>>> def saboteur(**kw):
207	n/a	... kw['x'] = 'm'
208	n/a	... return kw
209	n/a
210	n/a	>>> d = {}
211	n/a	>>> kw = saboteur(a=1, **d)
212	n/a	>>> d
213	n/a	{}
214	n/a
215	n/a
216	n/a	>>> g(1, 2, 3, **{'x': 4, 'y': 5})
217	n/a	Traceback (most recent call last):
218	n/a	...
219	n/a	TypeError: g() got multiple values for argument 'x'
220	n/a
221	n/a	>>> f(**{1:2})
222	n/a	Traceback (most recent call last):
223	n/a	...
224	n/a	TypeError: f() keywords must be strings
225	n/a
226	n/a	>>> h(**{'e': 2})
227	n/a	Traceback (most recent call last):
228	n/a	...
229	n/a	TypeError: h() got an unexpected keyword argument 'e'
230	n/a
231	n/a	>>> h(*h)
232	n/a	Traceback (most recent call last):
233	n/a	...
234	n/a	TypeError: h() argument after * must be an iterable, not function
235	n/a
236	n/a	>>> h(1, *h)
237	n/a	Traceback (most recent call last):
238	n/a	...
239	n/a	TypeError: h() argument after * must be an iterable, not function
240	n/a
241	n/a	>>> h([1], h)
242	n/a	Traceback (most recent call last):
243	n/a	...
244	n/a	TypeError: h() argument after * must be an iterable, not function
245	n/a
246	n/a	>>> dir(*h)
247	n/a	Traceback (most recent call last):
248	n/a	...
249	n/a	TypeError: dir() argument after * must be an iterable, not function
250	n/a
251	n/a	>>> None(*h)
252	n/a	Traceback (most recent call last):
253	n/a	...
254	n/a	TypeError: NoneType object argument after * must be an iterable, \
255	n/a	not function
256	n/a
257	n/a	>>> h(**h)
258	n/a	Traceback (most recent call last):
259	n/a	...
260	n/a	TypeError: h() argument after ** must be a mapping, not function
261	n/a
262	n/a	>>> h(**[])
263	n/a	Traceback (most recent call last):
264	n/a	...
265	n/a	TypeError: h() argument after ** must be a mapping, not list
266	n/a
267	n/a	>>> h(a=1, **h)
268	n/a	Traceback (most recent call last):
269	n/a	...
270	n/a	TypeError: h() argument after ** must be a mapping, not function
271	n/a
272	n/a	>>> h(a=1, **[])
273	n/a	Traceback (most recent call last):
274	n/a	...
275	n/a	TypeError: h() argument after ** must be a mapping, not list
276	n/a
277	n/a	>>> h({'a': 1}, h)
278	n/a	Traceback (most recent call last):
279	n/a	...
280	n/a	TypeError: h() argument after ** must be a mapping, not function
281	n/a
282	n/a	>>> h({'a': 1}, [])
283	n/a	Traceback (most recent call last):
284	n/a	...
285	n/a	TypeError: h() argument after ** must be a mapping, not list
286	n/a
287	n/a	>>> dir(**h)
288	n/a	Traceback (most recent call last):
289	n/a	...
290	n/a	TypeError: dir() argument after ** must be a mapping, not function
291	n/a
292	n/a	>>> None(**h)
293	n/a	Traceback (most recent call last):
294	n/a	...
295	n/a	TypeError: NoneType object argument after ** must be a mapping, \
296	n/a	not function
297	n/a
298	n/a	>>> dir(b=1, **{'b': 1})
299	n/a	Traceback (most recent call last):
300	n/a	...
301	n/a	TypeError: dir() got multiple values for keyword argument 'b'
302	n/a
303	n/a	Another helper function
304	n/a
305	n/a	>>> def f2(a, *b):
306	n/a	... return a, b
307	n/a
308	n/a
309	n/a	>>> d = {}
310	n/a	>>> for i in range(512):
311	n/a	... key = 'k%d' % i
312	n/a	... d[key] = i
313	n/a	>>> a, b = f2(1, (2,3), *d)
314	n/a	>>> len(a), len(b), b == d
315	n/a	(3, 512, True)
316	n/a
317	n/a	>>> class Foo:
318	n/a	... def method(self, arg1, arg2):
319	n/a	... return arg1+arg2
320	n/a
321	n/a	>>> x = Foo()
322	n/a	>>> Foo.method(*(x, 1, 2))
323	n/a	3
324	n/a	>>> Foo.method(x, *(1, 2))
325	n/a	3
326	n/a	>>> Foo.method(*(1, 2, 3))
327	n/a	5
328	n/a	>>> Foo.method(1, *[2, 3])
329	n/a	5
330	n/a
331	n/a	A PyCFunction that takes only positional parameters should allow an
332	n/a	empty keyword dictionary to pass without a complaint, but raise a
333	n/a	TypeError if te dictionary is not empty
334	n/a
335	n/a	>>> try:
336	n/a	... silence = id(1, *{})
337	n/a	... True
338	n/a	... except:
339	n/a	... False
340	n/a	True
341	n/a
342	n/a	>>> id(1, **{'foo': 1})
343	n/a	Traceback (most recent call last):
344	n/a	...
345	n/a	TypeError: id() takes no keyword arguments
346	n/a
347	n/a	A corner case of keyword dictionary items being deleted during
348	n/a	the function call setup. See <http://bugs.python.org/issue2016>.
349	n/a
350	n/a	>>> class Name(str):
351	n/a	... def __eq__(self, other):
352	n/a	... try:
353	n/a	... del x[self]
354	n/a	... except KeyError:
355	n/a	... pass
356	n/a	... return str.__eq__(self, other)
357	n/a	... def __hash__(self):
358	n/a	... return str.__hash__(self)
359	n/a
360	n/a	>>> x = {Name("a"):1, Name("b"):2}
361	n/a	>>> def f(a, b):
362	n/a	... print(a,b)
363	n/a	>>> f(**x)
364	n/a	1 2
365	n/a
366	n/a	Too many arguments:
367	n/a
368	n/a	>>> def f(): pass
369	n/a	>>> f(1)
370	n/a	Traceback (most recent call last):
371	n/a	...
372	n/a	TypeError: f() takes 0 positional arguments but 1 was given
373	n/a	>>> def f(a): pass
374	n/a	>>> f(1, 2)
375	n/a	Traceback (most recent call last):
376	n/a	...
377	n/a	TypeError: f() takes 1 positional argument but 2 were given
378	n/a	>>> def f(a, b=1): pass
379	n/a	>>> f(1, 2, 3)
380	n/a	Traceback (most recent call last):
381	n/a	...
382	n/a	TypeError: f() takes from 1 to 2 positional arguments but 3 were given
383	n/a	>>> def f(*, kw): pass
384	n/a	>>> f(1, kw=3)
385	n/a	Traceback (most recent call last):
386	n/a	...
387	n/a	TypeError: f() takes 0 positional arguments but 1 positional argument (and 1 keyword-only argument) were given
388	n/a	>>> def f(*, kw, b): pass
389	n/a	>>> f(1, 2, 3, b=3, kw=3)
390	n/a	Traceback (most recent call last):
391	n/a	...
392	n/a	TypeError: f() takes 0 positional arguments but 3 positional arguments (and 2 keyword-only arguments) were given
393	n/a	>>> def f(a, b=2, *, kw): pass
394	n/a	>>> f(2, 3, 4, kw=4)
395	n/a	Traceback (most recent call last):
396	n/a	...
397	n/a	TypeError: f() takes from 1 to 2 positional arguments but 3 positional arguments (and 1 keyword-only argument) were given
398	n/a
399	n/a	Too few and missing arguments:
400	n/a
401	n/a	>>> def f(a): pass
402	n/a	>>> f()
403	n/a	Traceback (most recent call last):
404	n/a	...
405	n/a	TypeError: f() missing 1 required positional argument: 'a'
406	n/a	>>> def f(a, b): pass
407	n/a	>>> f()
408	n/a	Traceback (most recent call last):
409	n/a	...
410	n/a	TypeError: f() missing 2 required positional arguments: 'a' and 'b'
411	n/a	>>> def f(a, b, c): pass
412	n/a	>>> f()
413	n/a	Traceback (most recent call last):
414	n/a	...
415	n/a	TypeError: f() missing 3 required positional arguments: 'a', 'b', and 'c'
416	n/a	>>> def f(a, b, c, d, e): pass
417	n/a	>>> f()
418	n/a	Traceback (most recent call last):
419	n/a	...
420	n/a	TypeError: f() missing 5 required positional arguments: 'a', 'b', 'c', 'd', and 'e'
421	n/a	>>> def f(a, b=4, c=5, d=5): pass
422	n/a	>>> f(c=12, b=9)
423	n/a	Traceback (most recent call last):
424	n/a	...
425	n/a	TypeError: f() missing 1 required positional argument: 'a'
426	n/a
427	n/a	Same with keyword only args:
428	n/a
429	n/a	>>> def f(*, w): pass
430	n/a	>>> f()
431	n/a	Traceback (most recent call last):
432	n/a	...
433	n/a	TypeError: f() missing 1 required keyword-only argument: 'w'
434	n/a	>>> def f(*, a, b, c, d, e): pass
435	n/a	>>> f()
436	n/a	Traceback (most recent call last):
437	n/a	...
438	n/a	TypeError: f() missing 5 required keyword-only arguments: 'a', 'b', 'c', 'd', and 'e'
439	n/a
440	n/a	"""
441	n/a
442	n/a	import sys
443	n/a	from test import support
444	n/a
445	n/a	def test_main():
446	n/a	support.run_doctest(sys.modules[__name__], True)
447	n/a
448	n/a	if __name__ == '__main__':
449	n/a	test_main()