Nick Coghlan | 8bd24fe | 2012-08-20 23:02:28 +1000 | [diff] [blame] | 1 | "Test InteractiveConsole and InteractiveInterpreter from code module" |
| 2 | import sys |
| 3 | import unittest |
R David Murray | c31e622 | 2014-09-29 11:25:00 -0400 | [diff] [blame] | 4 | from textwrap import dedent |
Nick Coghlan | 8bd24fe | 2012-08-20 23:02:28 +1000 | [diff] [blame] | 5 | from contextlib import ExitStack |
| 6 | from unittest import mock |
| 7 | from test import support |
| 8 | |
| 9 | code = support.import_module('code') |
| 10 | |
| 11 | |
| 12 | class TestInteractiveConsole(unittest.TestCase): |
| 13 | |
| 14 | def setUp(self): |
| 15 | self.console = code.InteractiveConsole() |
| 16 | self.mock_sys() |
| 17 | |
| 18 | def mock_sys(self): |
| 19 | "Mock system environment for InteractiveConsole" |
| 20 | # use exit stack to match patch context managers to addCleanup |
| 21 | stack = ExitStack() |
| 22 | self.addCleanup(stack.close) |
| 23 | self.infunc = stack.enter_context(mock.patch('code.input', |
| 24 | create=True)) |
| 25 | self.stdout = stack.enter_context(mock.patch('code.sys.stdout')) |
| 26 | self.stderr = stack.enter_context(mock.patch('code.sys.stderr')) |
| 27 | prepatch = mock.patch('code.sys', wraps=code.sys, spec=code.sys) |
| 28 | self.sysmod = stack.enter_context(prepatch) |
| 29 | if sys.excepthook is sys.__excepthook__: |
| 30 | self.sysmod.excepthook = self.sysmod.__excepthook__ |
| 31 | |
| 32 | def test_ps1(self): |
| 33 | self.infunc.side_effect = EOFError('Finished') |
| 34 | self.console.interact() |
| 35 | self.assertEqual(self.sysmod.ps1, '>>> ') |
| 36 | |
| 37 | def test_ps2(self): |
| 38 | self.infunc.side_effect = EOFError('Finished') |
| 39 | self.console.interact() |
| 40 | self.assertEqual(self.sysmod.ps2, '... ') |
| 41 | |
| 42 | def test_console_stderr(self): |
| 43 | self.infunc.side_effect = ["'antioch'", "", EOFError('Finished')] |
| 44 | self.console.interact() |
| 45 | for call in list(self.stdout.method_calls): |
| 46 | if 'antioch' in ''.join(call[1]): |
| 47 | break |
| 48 | else: |
| 49 | raise AssertionError("no console stdout") |
| 50 | |
| 51 | def test_syntax_error(self): |
| 52 | self.infunc.side_effect = ["undefined", EOFError('Finished')] |
| 53 | self.console.interact() |
| 54 | for call in self.stderr.method_calls: |
doko@ubuntu.com | 15bec9c | 2014-05-13 11:28:12 +0200 | [diff] [blame] | 55 | if 'NameError' in ''.join(call[1]): |
Nick Coghlan | 8bd24fe | 2012-08-20 23:02:28 +1000 | [diff] [blame] | 56 | break |
| 57 | else: |
| 58 | raise AssertionError("No syntax error from console") |
| 59 | |
| 60 | def test_sysexcepthook(self): |
| 61 | self.infunc.side_effect = ["raise ValueError('')", |
| 62 | EOFError('Finished')] |
| 63 | hook = mock.Mock() |
| 64 | self.sysmod.excepthook = hook |
| 65 | self.console.interact() |
| 66 | self.assertTrue(hook.called) |
| 67 | |
Georg Brandl | fbc3c3c | 2013-10-13 21:49:06 +0200 | [diff] [blame] | 68 | def test_banner(self): |
| 69 | # with banner |
| 70 | self.infunc.side_effect = EOFError('Finished') |
| 71 | self.console.interact(banner='Foo') |
| 72 | self.assertEqual(len(self.stderr.method_calls), 2) |
| 73 | banner_call = self.stderr.method_calls[0] |
| 74 | self.assertEqual(banner_call, ['write', ('Foo\n',), {}]) |
| 75 | |
| 76 | # no banner |
| 77 | self.stderr.reset_mock() |
| 78 | self.infunc.side_effect = EOFError('Finished') |
| 79 | self.console.interact(banner='') |
| 80 | self.assertEqual(len(self.stderr.method_calls), 1) |
| 81 | |
R David Murray | c31e622 | 2014-09-29 11:25:00 -0400 | [diff] [blame] | 82 | def test_cause_tb(self): |
| 83 | self.infunc.side_effect = ["raise ValueError('') from AttributeError", |
| 84 | EOFError('Finished')] |
| 85 | self.console.interact() |
| 86 | output = ''.join(''.join(call[1]) for call in self.stderr.method_calls) |
| 87 | expected = dedent(""" |
| 88 | AttributeError |
| 89 | |
| 90 | The above exception was the direct cause of the following exception: |
| 91 | |
| 92 | Traceback (most recent call last): |
| 93 | File "<console>", line 1, in <module> |
| 94 | ValueError |
| 95 | """) |
| 96 | self.assertIn(expected, output) |
| 97 | |
| 98 | def test_context_tb(self): |
| 99 | self.infunc.side_effect = ["try: ham\nexcept: eggs\n", |
| 100 | EOFError('Finished')] |
| 101 | self.console.interact() |
| 102 | output = ''.join(''.join(call[1]) for call in self.stderr.method_calls) |
| 103 | expected = dedent(""" |
| 104 | Traceback (most recent call last): |
| 105 | File "<console>", line 1, in <module> |
| 106 | NameError: name 'ham' is not defined |
| 107 | |
| 108 | During handling of the above exception, another exception occurred: |
| 109 | |
| 110 | Traceback (most recent call last): |
| 111 | File "<console>", line 2, in <module> |
| 112 | NameError: name 'eggs' is not defined |
| 113 | """) |
| 114 | self.assertIn(expected, output) |
| 115 | |
Nick Coghlan | 8bd24fe | 2012-08-20 23:02:28 +1000 | [diff] [blame] | 116 | |
Nick Coghlan | 8bd24fe | 2012-08-20 23:02:28 +1000 | [diff] [blame] | 117 | if __name__ == "__main__": |
| 118 | unittest.main() |