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"""
Use this module to get and run all tk tests.
Tkinter tests should live in a package inside the directory where this file
lives, like test_tkinter.
Extensions also should live in packages following the same rule as above.
"""
import os
import sys
import unittest
import importlib
import test.test_support
this_dir_path = os.path.abspath(os.path.dirname(__file__))
_tk_unavailable = None
def check_tk_availability():
"""Check that Tk is installed and available."""
global _tk_unavailable
if _tk_unavailable is None:
_tk_unavailable = False
if sys.platform == 'darwin':
# The Aqua Tk implementations on OS X can abort the process if
# being called in an environment where a window server connection
# cannot be made, for instance when invoked by a buildbot or ssh
# process not running under the same user id as the current console
# user. To avoid that, raise an exception if the window manager
# connection is not available.
from ctypes import cdll, c_int, pointer, Structure
from ctypes.util import find_library
app_services = cdll.LoadLibrary(find_library("ApplicationServices"))
if app_services.CGMainDisplayID() == 0:
_tk_unavailable = "cannot run without OS X window manager"
else:
class ProcessSerialNumber(Structure):
_fields_ = [("highLongOfPSN", c_int),
("lowLongOfPSN", c_int)]
psn = ProcessSerialNumber()
psn_p = pointer(psn)
if ( (app_services.GetCurrentProcess(psn_p) < 0) or
(app_services.SetFrontProcess(psn_p) < 0) ):
_tk_unavailable = "cannot run without OS X gui process"
else: # not OS X
import Tkinter
try:
Tkinter.Button()
except Tkinter.TclError as msg:
# assuming tk is not available
_tk_unavailable = "tk not available: %s" % msg
if _tk_unavailable:
raise unittest.SkipTest(_tk_unavailable)
return
def is_package(path):
for name in os.listdir(path):
if name in ('__init__.py', '__init__.pyc', '__init.pyo'):
return True
return False
def get_tests_modules(basepath=this_dir_path, gui=True, packages=None):
"""This will import and yield modules whose names start with test_
and are inside packages found in the path starting at basepath.
If packages is specified it should contain package names that want
their tests colleted.
"""
py_ext = '.py'
for dirpath, dirnames, filenames in os.walk(basepath):
for dirname in list(dirnames):
if dirname[0] == '.':
dirnames.remove(dirname)
if is_package(dirpath) and filenames:
pkg_name = dirpath[len(basepath) + len(os.sep):].replace('/', '.')
if packages and pkg_name not in packages:
continue
filenames = filter(
lambda x: x.startswith('test_') and x.endswith(py_ext),
filenames)
for name in filenames:
try:
yield importlib.import_module(
".%s" % name[:-len(py_ext)], pkg_name)
except test.test_support.ResourceDenied:
if gui:
raise
def get_tests(text=True, gui=True, packages=None):
"""Yield all the tests in the modules found by get_tests_modules.
If nogui is True, only tests that do not require a GUI will be
returned."""
attrs = []
if text:
attrs.append('tests_nogui')
if gui:
attrs.append('tests_gui')
for module in get_tests_modules(gui=gui, packages=packages):
for attr in attrs:
for test in getattr(module, attr, ()):
yield test
if __name__ == "__main__":
test.test_support.use_resources = ['gui']
test.test_support.run_unittest(*get_tests())