mirror of https://github.com/python/cpython
445 lines
11 KiB
Python
445 lines
11 KiB
Python
doctests = """
|
|
########### Tests borrowed from or inspired by test_genexps.py ############
|
|
|
|
Test simple loop with conditional
|
|
|
|
>>> sum([i*i for i in range(100) if i&1 == 1])
|
|
166650
|
|
|
|
Test simple nesting
|
|
|
|
>>> [(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
|
|
|
|
>>> [(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 listcomps 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: ...
|
|
|
|
|
|
########### Tests borrowed from or inspired by test_generators.py ############
|
|
|
|
Make a nested list comprehension that acts like range()
|
|
|
|
>>> def frange(n):
|
|
... return [i for i in xrange(n)]
|
|
>>> frange(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 xrange(n)]
|
|
>>> 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 xrange(n)]:
|
|
... yield x
|
|
>>> list(grange(5))
|
|
[0, 1, 2, 3, 4]
|
|
|
|
|
|
Make sure that None is a valid return value
|
|
|
|
>>> [None for i in xrange(10)]
|
|
[None, None, None, None, None, None, None, None, None, 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]
|
|
[0, 1, 2, 3, 4]
|
|
|
|
Same again, only this time as a closure variable
|
|
|
|
>>> items = [(lambda: i) for i in range(5)]
|
|
>>> [x() for x in items]
|
|
[4, 4, 4, 4, 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, 4, 4, 4, 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, 2, 2, 2, 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()
|
|
[0, 1, 2, 3, 4]
|
|
|
|
>>> def test_func():
|
|
... items = [(lambda: i) for i in range(5)]
|
|
... return [x() for x in items]
|
|
>>> test_func()
|
|
[4, 4, 4, 4, 4]
|
|
|
|
>>> def test_func():
|
|
... items = [(lambda: i) for i in range(5)]
|
|
... i = 20
|
|
... return [x() for x in items]
|
|
>>> test_func()
|
|
[4, 4, 4, 4, 4]
|
|
|
|
>>> def test_func():
|
|
... items = [(lambda: y) for i in range(5)]
|
|
... y = 2
|
|
... return [x() for x in items]
|
|
>>> test_func()
|
|
[2, 2, 2, 2, 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 xrange(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 borrowed from or inspired by test_genexps.py ############
|
|
|
|
Test simple loop with conditional
|
|
|
|
>>> sum([i*i for i in range(100) if i&1 == 1])
|
|
166650
|
|
|
|
Test simple nesting
|
|
|
|
>>> [(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
|
|
|
|
>>> [(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 listcomps 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: ...
|
|
|
|
|
|
########### Tests borrowed from or inspired by test_generators.py ############
|
|
|
|
Make a nested list comprehension that acts like range()
|
|
|
|
>>> def frange(n):
|
|
... return [i for i in xrange(n)]
|
|
>>> frange(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 xrange(n)]
|
|
>>> 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 xrange(n)]:
|
|
... yield x
|
|
>>> list(grange(5))
|
|
[0, 1, 2, 3, 4]
|
|
|
|
|
|
Make sure that None is a valid return value
|
|
|
|
>>> [None for i in xrange(10)]
|
|
[None, None, None, None, None, None, None, None, None, 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]
|
|
[0, 1, 2, 3, 4]
|
|
|
|
Same again, only this time as a closure variable
|
|
|
|
>>> items = [(lambda: i) for i in range(5)]
|
|
>>> [x() for x in items]
|
|
[4, 4, 4, 4, 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, 4, 4, 4, 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, 2, 2, 2, 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()
|
|
[0, 1, 2, 3, 4]
|
|
|
|
>>> def test_func():
|
|
... items = [(lambda: i) for i in range(5)]
|
|
... return [x() for x in items]
|
|
>>> test_func()
|
|
[4, 4, 4, 4, 4]
|
|
|
|
>>> def test_func():
|
|
... items = [(lambda: i) for i in range(5)]
|
|
... i = 20
|
|
... return [x() for x in items]
|
|
>>> test_func()
|
|
[4, 4, 4, 4, 4]
|
|
|
|
>>> def test_func():
|
|
... items = [(lambda: y) for i in range(5)]
|
|
... y = 2
|
|
... return [x() for x in items]
|
|
>>> test_func()
|
|
[2, 2, 2, 2, 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 xrange(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 borrowed from or inspired by test_genexps.py ############
|
|
|
|
Test simple loop with conditional
|
|
|
|
>>> sum([i*i for i in range(100) if i&1 == 1])
|
|
166650
|
|
|
|
Test simple nesting
|
|
|
|
>>> [(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
|
|
|
|
>>> [(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 listcomps 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: ...
|
|
|
|
|
|
########### Tests borrowed from or inspired by test_generators.py ############
|
|
|
|
Make a nested list comprehension that acts like range()
|
|
|
|
>>> def frange(n):
|
|
... return [i for i in xrange(n)]
|
|
>>> frange(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 xrange(n)]
|
|
>>> 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 xrange(n)]:
|
|
... yield x
|
|
>>> list(grange(5))
|
|
[0, 1, 2, 3, 4]
|
|
|
|
|
|
Make sure that None is a valid return value
|
|
|
|
>>> [None for i in xrange(10)]
|
|
[None, None, None, None, None, None, None, None, None, 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]
|
|
[0, 1, 2, 3, 4]
|
|
|
|
Same again, only this time as a closure variable
|
|
|
|
>>> items = [(lambda: i) for i in range(5)]
|
|
>>> [x() for x in items]
|
|
[4, 4, 4, 4, 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, 4, 4, 4, 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, 2, 2, 2, 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()
|
|
[0, 1, 2, 3, 4]
|
|
|
|
>>> def test_func():
|
|
... items = [(lambda: i) for i in range(5)]
|
|
... return [x() for x in items]
|
|
>>> test_func()
|
|
[4, 4, 4, 4, 4]
|
|
|
|
>>> def test_func():
|
|
... items = [(lambda: i) for i in range(5)]
|
|
... i = 20
|
|
... return [x() for x in items]
|
|
>>> test_func()
|
|
[4, 4, 4, 4, 4]
|
|
|
|
>>> def test_func():
|
|
... items = [(lambda: y) for i in range(5)]
|
|
... y = 2
|
|
... return [x() for x in items]
|
|
>>> test_func()
|
|
[2, 2, 2, 2, 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 xrange(len(counts)):
|
|
test_support.run_doctest(test_genexps, verbose)
|
|
gc.collect()
|
|
counts[i] = sys.gettotalrefcount()
|
|
print(counts)
|
|
|
|
if __name__ == "__main__":
|
|
test_main(verbose=True)
|