cpython/Lib/test/test_code.py
Benjamin Peterson ad9d48d865 Merged revisions 62090-62091,62096,62100,62102,62110-62114 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r62090 | brett.cannon | 2008-04-01 07:37:43 -0500 (Tue, 01 Apr 2008) | 3 lines

  Generalize test.test_support.test_stdout() with a base context manager so that
  it is easy to capture stderr if desired.
........
  r62091 | brett.cannon | 2008-04-01 07:46:02 -0500 (Tue, 01 Apr 2008) | 3 lines

  Add ``if __name__ == '__main__'`` to some test files where it didn't take a lot
  of effort to do so.
........
  r62096 | amaury.forgeotdarc | 2008-04-01 17:52:48 -0500 (Tue, 01 Apr 2008) | 4 lines

  Newly enabled test appears to leak:
  it registers the same codec on each iteration.
  Do it only once at load time.
........
  r62100 | amaury.forgeotdarc | 2008-04-01 19:55:04 -0500 (Tue, 01 Apr 2008) | 4 lines

  A DocTestSuite cannot run multiple times: it clears its globals dictionary after the first run.

  Rebuild the DocTestSuite on each iteration.
........
  r62102 | jeffrey.yasskin | 2008-04-01 23:07:44 -0500 (Tue, 01 Apr 2008) | 3 lines

  Try to make test_signal less flaky.  I still see some flakiness in
  test_itimer_prof.
........
  r62110 | vinay.sajip | 2008-04-02 16:09:27 -0500 (Wed, 02 Apr 2008) | 1 line

  Fix: #2315, #2316, #2317: TimedRotatingFileHandler - changed logic to better handle daylight savings time, deletion of old log files, and fixed a bug in calculating rollover when no logging occurs for a longer interval than the rollover period.
........
  r62111 | vinay.sajip | 2008-04-02 16:10:23 -0500 (Wed, 02 Apr 2008) | 1 line

  Added updates with respect to recent changes to TimedRotatingFileHandler.
........
  r62112 | vinay.sajip | 2008-04-02 16:17:25 -0500 (Wed, 02 Apr 2008) | 1 line

  Added updates with respect to recent changes to TimedRotatingFileHandler.
........
  r62113 | amaury.forgeotdarc | 2008-04-02 16:18:46 -0500 (Wed, 02 Apr 2008) | 2 lines

  Remove debug prints; the buildbot now passes the tests
........
  r62114 | benjamin.peterson | 2008-04-02 16:20:35 -0500 (Wed, 02 Apr 2008) | 2 lines

  Suggested proposed changes to Python be considered on some mailing lists first
........
2008-04-02 21:49:44 +00:00

129 lines
2.3 KiB
Python

"""This module includes tests of the code object representation.
>>> def f(x):
... def g(y):
... return x + y
... return g
...
>>> dump(f.__code__)
name: f
argcount: 1
kwonlyargcount: 0
names: ()
varnames: ('x', 'g')
cellvars: ('x',)
freevars: ()
nlocals: 2
flags: 3
consts: ('None', '<code object g>')
>>> dump(f(4).__code__)
name: g
argcount: 1
kwonlyargcount: 0
names: ()
varnames: ('y',)
cellvars: ()
freevars: ('x',)
nlocals: 1
flags: 19
consts: ('None',)
>>> def h(x, y):
... a = x + y
... b = x - y
... c = a * b
... return c
...
>>> dump(h.__code__)
name: h
argcount: 2
kwonlyargcount: 0
names: ()
varnames: ('x', 'y', 'a', 'b', 'c')
cellvars: ()
freevars: ()
nlocals: 5
flags: 67
consts: ('None',)
>>> def attrs(obj):
... print(obj.attr1)
... print(obj.attr2)
... print(obj.attr3)
>>> dump(attrs.__code__)
name: attrs
argcount: 1
kwonlyargcount: 0
names: ('print', 'attr1', 'attr2', 'attr3')
varnames: ('obj',)
cellvars: ()
freevars: ()
nlocals: 1
flags: 67
consts: ('None',)
>>> def optimize_away():
... 'doc string'
... 'not a docstring'
... 53
... 0x53
>>> dump(optimize_away.__code__)
name: optimize_away
argcount: 0
kwonlyargcount: 0
names: ()
varnames: ()
cellvars: ()
freevars: ()
nlocals: 0
flags: 67
consts: ("'doc string'", 'None')
>>> def keywordonly_args(a,b,*,k1):
... return a,b,k1
...
>>> dump(keywordonly_args.__code__)
name: keywordonly_args
argcount: 2
kwonlyargcount: 1
names: ()
varnames: ('a', 'b', 'k1')
cellvars: ()
freevars: ()
nlocals: 3
flags: 67
consts: ('None',)
"""
def consts(t):
"""Yield a doctest-safe sequence of object reprs."""
for elt in t:
r = repr(elt)
if r.startswith("<code object"):
yield "<code object %s>" % elt.co_name
else:
yield r
def dump(co):
"""Print out a text representation of a code object."""
for attr in ["name", "argcount", "kwonlyargcount", "names", "varnames",
"cellvars", "freevars", "nlocals", "flags"]:
print("%s: %s" % (attr, getattr(co, "co_" + attr)))
print("consts:", tuple(consts(co.co_consts)))
def test_main(verbose=None):
from test.test_support import run_doctest
from test import test_code
run_doctest(test_code, verbose)
if __name__ == '__main__':
test_main()