[Python-3000-checkins] r56255 - python/branches/p3yk/Lib/test/test_setcomps.py
thomas.wouters
python-3000-checkins at python.org
Wed Jul 11 12:41:38 CEST 2007
Author: thomas.wouters
Date: Wed Jul 11 12:41:37 2007
New Revision: 56255
Modified:
python/branches/p3yk/Lib/test/test_setcomps.py
Log:
Clean up merge glitch or copy-paste error (the entire module was duplicated,
except the first half even had some more copy-paste errors, referring to
listcomps and genexps instead of setcomps)
Modified: python/branches/p3yk/Lib/test/test_setcomps.py
==============================================================================
--- python/branches/p3yk/Lib/test/test_setcomps.py (original)
+++ python/branches/p3yk/Lib/test/test_setcomps.py Wed Jul 11 12:41:37 2007
@@ -134,308 +134,6 @@
def test_main(verbose=None):
import sys
from test import test_support
- from test import test_listcomps
- test_support.run_doctest(test_listcomps, verbose)
-
- # verify reference counting
- if verbose and hasattr(sys, "gettotalrefcount"):
- import gc
- counts = [None] * 5
- for i in range(len(counts)):
- test_support.run_doctest(test_genexps, verbose)
- gc.collect()
- counts[i] = sys.gettotalrefcount()
- print(counts)
-
-if __name__ == "__main__":
- test_main(verbose=True)
-doctests = """
-########### Tests mostly copied from test_listcomps.py ############
-
-Test simple loop with conditional
-
- >>> sum({i*i for i in range(100) if i&1 == 1})
- 166650
-
-Test simple case
-
- >>> {2*y + x + 1 for x in (0,) for y in (1,)}
- {3}
-
-Test simple nesting
-
- >>> list(sorted({(i,j) for i in range(3) for j in range(4)}))
- [(0, 0), (0, 1), (0, 2), (0, 3), (1, 0), (1, 1), (1, 2), (1, 3), (2, 0), (2, 1), (2, 2), (2, 3)]
-
-Test nesting with the inner expression dependent on the outer
-
- >>> list(sorted({(i,j) for i in range(4) for j in range(i)}))
- [(1, 0), (2, 0), (2, 1), (3, 0), (3, 1), (3, 2)]
-
-Make sure the induction variable is not exposed
-
- >>> i = 20
- >>> sum({i*i for i in range(100)})
- 328350
-
- >>> i
- 20
-
-Verify that syntax error's are raised for setcomps used as lvalues
-
- >>> {y for y in (1,2)} = 10 # doctest: +IGNORE_EXCEPTION_DETAIL
- Traceback (most recent call last):
- ...
- SyntaxError: ...
-
- >>> {y for y in (1,2)} += 10 # doctest: +IGNORE_EXCEPTION_DETAIL
- Traceback (most recent call last):
- ...
- SyntaxError: ...
-
-
-Make a nested set comprehension that acts like set(range())
-
- >>> def srange(n):
- ... return {i for i in range(n)}
- >>> list(sorted(srange(10)))
- [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
-
-Same again, only as a lambda expression instead of a function definition
-
- >>> lrange = lambda n: {i for i in range(n)}
- >>> list(sorted(lrange(10)))
- [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
-
-Generators can call other generators:
-
- >>> def grange(n):
- ... for x in {i for i in range(n)}:
- ... yield x
- >>> list(sorted(grange(5)))
- [0, 1, 2, 3, 4]
-
-
-Make sure that None is a valid return value
-
- >>> {None for i in range(10)}
- {None}
-
-########### Tests for various scoping corner cases ############
-
-Return lambdas that use the iteration variable as a default argument
-
- >>> items = {(lambda i=i: i) for i in range(5)}
- >>> {x() for x in items} == set(range(5))
- True
-
-Same again, only this time as a closure variable
-
- >>> items = {(lambda: i) for i in range(5)}
- >>> {x() for x in items}
- {4}
-
-Another way to test that the iteration variable is local to the list comp
-
- >>> items = {(lambda: i) for i in range(5)}
- >>> i = 20
- >>> {x() for x in items}
- {4}
-
-And confirm that a closure can jump over the list comp scope
-
- >>> items = {(lambda: y) for i in range(5)}
- >>> y = 2
- >>> {x() for x in items}
- {2}
-
-We also repeat each of the above scoping tests inside a function
-
- >>> def test_func():
- ... items = {(lambda i=i: i) for i in range(5)}
- ... return {x() for x in items}
- >>> test_func() == set(range(5))
- True
-
- >>> def test_func():
- ... items = {(lambda: i) for i in range(5)}
- ... return {x() for x in items}
- >>> test_func()
- {4}
-
- >>> def test_func():
- ... items = {(lambda: i) for i in range(5)}
- ... i = 20
- ... return {x() for x in items}
- >>> test_func()
- {4}
-
- >>> def test_func():
- ... items = {(lambda: y) for i in range(5)}
- ... y = 2
- ... return {x() for x in items}
- >>> test_func()
- {2}
-
-"""
-
-
-__test__ = {'doctests' : doctests}
-
-def test_main(verbose=None):
- import sys
- from test import test_support
- from test import test_listcomps
- test_support.run_doctest(test_listcomps, verbose)
-
- # verify reference counting
- if verbose and hasattr(sys, "gettotalrefcount"):
- import gc
- counts = [None] * 5
- for i in range(len(counts)):
- test_support.run_doctest(test_genexps, verbose)
- gc.collect()
- counts[i] = sys.gettotalrefcount()
- print(counts)
-
-if __name__ == "__main__":
- test_main(verbose=True)
-doctests = """
-########### Tests mostly copied from test_listcomps.py ############
-
-Test simple loop with conditional
-
- >>> sum({i*i for i in range(100) if i&1 == 1})
- 166650
-
-Test simple case
-
- >>> {2*y + x + 1 for x in (0,) for y in (1,)}
- {3}
-
-Test simple nesting
-
- >>> list(sorted({(i,j) for i in range(3) for j in range(4)}))
- [(0, 0), (0, 1), (0, 2), (0, 3), (1, 0), (1, 1), (1, 2), (1, 3), (2, 0), (2, 1), (2, 2), (2, 3)]
-
-Test nesting with the inner expression dependent on the outer
-
- >>> list(sorted({(i,j) for i in range(4) for j in range(i)}))
- [(1, 0), (2, 0), (2, 1), (3, 0), (3, 1), (3, 2)]
-
-Make sure the induction variable is not exposed
-
- >>> i = 20
- >>> sum({i*i for i in range(100)})
- 328350
-
- >>> i
- 20
-
-Verify that syntax error's are raised for setcomps used as lvalues
-
- >>> {y for y in (1,2)} = 10 # doctest: +IGNORE_EXCEPTION_DETAIL
- Traceback (most recent call last):
- ...
- SyntaxError: ...
-
- >>> {y for y in (1,2)} += 10 # doctest: +IGNORE_EXCEPTION_DETAIL
- Traceback (most recent call last):
- ...
- SyntaxError: ...
-
-
-Make a nested set comprehension that acts like set(range())
-
- >>> def srange(n):
- ... return {i for i in range(n)}
- >>> list(sorted(srange(10)))
- [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
-
-Same again, only as a lambda expression instead of a function definition
-
- >>> lrange = lambda n: {i for i in range(n)}
- >>> list(sorted(lrange(10)))
- [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
-
-Generators can call other generators:
-
- >>> def grange(n):
- ... for x in {i for i in range(n)}:
- ... yield x
- >>> list(sorted(grange(5)))
- [0, 1, 2, 3, 4]
-
-
-Make sure that None is a valid return value
-
- >>> {None for i in range(10)}
- {None}
-
-########### Tests for various scoping corner cases ############
-
-Return lambdas that use the iteration variable as a default argument
-
- >>> items = {(lambda i=i: i) for i in range(5)}
- >>> {x() for x in items} == set(range(5))
- True
-
-Same again, only this time as a closure variable
-
- >>> items = {(lambda: i) for i in range(5)}
- >>> {x() for x in items}
- {4}
-
-Another way to test that the iteration variable is local to the list comp
-
- >>> items = {(lambda: i) for i in range(5)}
- >>> i = 20
- >>> {x() for x in items}
- {4}
-
-And confirm that a closure can jump over the list comp scope
-
- >>> items = {(lambda: y) for i in range(5)}
- >>> y = 2
- >>> {x() for x in items}
- {2}
-
-We also repeat each of the above scoping tests inside a function
-
- >>> def test_func():
- ... items = {(lambda i=i: i) for i in range(5)}
- ... return {x() for x in items}
- >>> test_func() == set(range(5))
- True
-
- >>> def test_func():
- ... items = {(lambda: i) for i in range(5)}
- ... return {x() for x in items}
- >>> test_func()
- {4}
-
- >>> def test_func():
- ... items = {(lambda: i) for i in range(5)}
- ... i = 20
- ... return {x() for x in items}
- >>> test_func()
- {4}
-
- >>> def test_func():
- ... items = {(lambda: y) for i in range(5)}
- ... y = 2
- ... return {x() for x in items}
- >>> test_func()
- {2}
-
-"""
-
-
-__test__ = {'doctests' : doctests}
-
-def test_main(verbose=None):
- import sys
- from test import test_support
from test import test_setcomps
test_support.run_doctest(test_setcomps, verbose)
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