mirror of https://github.com/python/cpython
74 lines
2.7 KiB
Python
74 lines
2.7 KiB
Python
|
'''Test warnings replacement in PyShell.py and run.py.
|
||
|
|
|
||
|
|
This file could be expanded to include traceback overrides
|
||
|
|
(in same two modules). If so, change name.
|
||
|
|
Revise if output destination changes (http://bugs.python.org/issue18318).
|
||
|
|
Make sure warnings module is left unaltered (http://bugs.python.org/issue18081).
|
||
|
|
'''
|
||
|
|
|
||
|
|
import unittest
|
||
|
|
from test.support import captured_stderr
|
||
|
|
|
||
|
|
import warnings
|
||
|
|
# Try to capture default showwarning before Idle modules are imported.
|
||
|
|
showwarning = warnings.showwarning
|
||
|
|
# But if we run this file within idle, we are in the middle of the run.main loop
|
||
|
|
# and default showwarnings has already been replaced.
|
||
|
|
running_in_idle = 'idle' in showwarning.__name__
|
||
|
|
|
||
|
|
from idlelib import run
|
||
|
|
from idlelib import PyShell as shell
|
||
|
|
|
||
|
|
# The following was generated from PyShell.idle_formatwarning
|
||
|
|
# and checked as matching expectation.
|
||
|
|
idlemsg = '''
|
||
|
|
Warning (from warnings module):
|
||
|
|
File "test_warning.py", line 99
|
||
|
|
Line of code
|
||
|
|
UserWarning: Test
|
||
|
|
'''
|
||
|
|
shellmsg = idlemsg + ">>> "
|
||
|
|
|
||
|
|
class RunWarnTest(unittest.TestCase):
|
||
|
|
|
||
|
|
@unittest.skipIf(running_in_idle, "Does not work when run within Idle.")
|
||
|
|
def test_showwarnings(self):
|
||
|
|
self.assertIs(warnings.showwarning, showwarning)
|
||
|
|
run.capture_warnings(True)
|
||
|
|
self.assertIs(warnings.showwarning, run.idle_showwarning_subproc)
|
||
|
|
run.capture_warnings(False)
|
||
|
|
self.assertIs(warnings.showwarning, showwarning)
|
||
|
|
|
||
|
|
def test_run_show(self):
|
||
|
|
with captured_stderr() as f:
|
||
|
|
run.idle_showwarning_subproc(
|
||
|
|
'Test', UserWarning, 'test_warning.py', 99, f, 'Line of code')
|
||
|
|
# The following uses .splitlines to erase line-ending differences
|
||
|
|
self.assertEqual(idlemsg.splitlines(), f.getvalue().splitlines())
|
||
|
|
|
||
|
|
class ShellWarnTest(unittest.TestCase):
|
||
|
|
|
||
|
|
@unittest.skipIf(running_in_idle, "Does not work when run within Idle.")
|
||
|
|
def test_showwarnings(self):
|
||
|
|
self.assertIs(warnings.showwarning, showwarning)
|
||
|
|
shell.capture_warnings(True)
|
||
|
|
self.assertIs(warnings.showwarning, shell.idle_showwarning)
|
||
|
|
shell.capture_warnings(False)
|
||
|
|
self.assertIs(warnings.showwarning, showwarning)
|
||
|
|
|
||
|
|
def test_idle_formatter(self):
|
||
|
|
# Will fail if format changed without regenerating idlemsg
|
||
|
|
s = shell.idle_formatwarning(
|
||
|
|
'Test', UserWarning, 'test_warning.py', 99, 'Line of code')
|
||
|
|
self.assertEqual(idlemsg, s)
|
||
|
|
|
||
|
|
def test_shell_show(self):
|
||
|
|
with captured_stderr() as f:
|
||
|
|
shell.idle_showwarning(
|
||
|
|
'Test', UserWarning, 'test_warning.py', 99, f, 'Line of code')
|
||
|
|
self.assertEqual(shellmsg.splitlines(), f.getvalue().splitlines())
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
unittest.main(verbosity=2, exit=False)
|