| 1 | n/a | '''Test warnings replacement in pyshell.py and run.py. |
|---|
| 2 | n/a | |
|---|
| 3 | n/a | This file could be expanded to include traceback overrides |
|---|
| 4 | n/a | (in same two modules). If so, change name. |
|---|
| 5 | n/a | Revise if output destination changes (http://bugs.python.org/issue18318). |
|---|
| 6 | n/a | Make sure warnings module is left unaltered (http://bugs.python.org/issue18081). |
|---|
| 7 | n/a | ''' |
|---|
| 8 | n/a | |
|---|
| 9 | n/a | import unittest |
|---|
| 10 | n/a | from test.support import captured_stderr |
|---|
| 11 | n/a | |
|---|
| 12 | n/a | import warnings |
|---|
| 13 | n/a | # Try to capture default showwarning before Idle modules are imported. |
|---|
| 14 | n/a | showwarning = warnings.showwarning |
|---|
| 15 | n/a | # But if we run this file within idle, we are in the middle of the run.main loop |
|---|
| 16 | n/a | # and default showwarnings has already been replaced. |
|---|
| 17 | n/a | running_in_idle = 'idle' in showwarning.__name__ |
|---|
| 18 | n/a | |
|---|
| 19 | n/a | from idlelib import run |
|---|
| 20 | n/a | from idlelib import pyshell as shell |
|---|
| 21 | n/a | |
|---|
| 22 | n/a | # The following was generated from pyshell.idle_formatwarning |
|---|
| 23 | n/a | # and checked as matching expectation. |
|---|
| 24 | n/a | idlemsg = ''' |
|---|
| 25 | n/a | Warning (from warnings module): |
|---|
| 26 | n/a | File "test_warning.py", line 99 |
|---|
| 27 | n/a | Line of code |
|---|
| 28 | n/a | UserWarning: Test |
|---|
| 29 | n/a | ''' |
|---|
| 30 | n/a | shellmsg = idlemsg + ">>> " |
|---|
| 31 | n/a | |
|---|
| 32 | n/a | class RunWarnTest(unittest.TestCase): |
|---|
| 33 | n/a | |
|---|
| 34 | n/a | @unittest.skipIf(running_in_idle, "Does not work when run within Idle.") |
|---|
| 35 | n/a | def test_showwarnings(self): |
|---|
| 36 | n/a | self.assertIs(warnings.showwarning, showwarning) |
|---|
| 37 | n/a | run.capture_warnings(True) |
|---|
| 38 | n/a | self.assertIs(warnings.showwarning, run.idle_showwarning_subproc) |
|---|
| 39 | n/a | run.capture_warnings(False) |
|---|
| 40 | n/a | self.assertIs(warnings.showwarning, showwarning) |
|---|
| 41 | n/a | |
|---|
| 42 | n/a | def test_run_show(self): |
|---|
| 43 | n/a | with captured_stderr() as f: |
|---|
| 44 | n/a | run.idle_showwarning_subproc( |
|---|
| 45 | n/a | 'Test', UserWarning, 'test_warning.py', 99, f, 'Line of code') |
|---|
| 46 | n/a | # The following uses .splitlines to erase line-ending differences |
|---|
| 47 | n/a | self.assertEqual(idlemsg.splitlines(), f.getvalue().splitlines()) |
|---|
| 48 | n/a | |
|---|
| 49 | n/a | class ShellWarnTest(unittest.TestCase): |
|---|
| 50 | n/a | |
|---|
| 51 | n/a | @unittest.skipIf(running_in_idle, "Does not work when run within Idle.") |
|---|
| 52 | n/a | def test_showwarnings(self): |
|---|
| 53 | n/a | self.assertIs(warnings.showwarning, showwarning) |
|---|
| 54 | n/a | shell.capture_warnings(True) |
|---|
| 55 | n/a | self.assertIs(warnings.showwarning, shell.idle_showwarning) |
|---|
| 56 | n/a | shell.capture_warnings(False) |
|---|
| 57 | n/a | self.assertIs(warnings.showwarning, showwarning) |
|---|
| 58 | n/a | |
|---|
| 59 | n/a | def test_idle_formatter(self): |
|---|
| 60 | n/a | # Will fail if format changed without regenerating idlemsg |
|---|
| 61 | n/a | s = shell.idle_formatwarning( |
|---|
| 62 | n/a | 'Test', UserWarning, 'test_warning.py', 99, 'Line of code') |
|---|
| 63 | n/a | self.assertEqual(idlemsg, s) |
|---|
| 64 | n/a | |
|---|
| 65 | n/a | def test_shell_show(self): |
|---|
| 66 | n/a | with captured_stderr() as f: |
|---|
| 67 | n/a | shell.idle_showwarning( |
|---|
| 68 | n/a | 'Test', UserWarning, 'test_warning.py', 99, f, 'Line of code') |
|---|
| 69 | n/a | self.assertEqual(shellmsg.splitlines(), f.getvalue().splitlines()) |
|---|
| 70 | n/a | |
|---|
| 71 | n/a | |
|---|
| 72 | n/a | if __name__ == '__main__': |
|---|
| 73 | n/a | unittest.main(verbosity=2, exit=False) |
|---|
