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190 lines
6.6 KiB
Python
190 lines
6.6 KiB
Python
# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
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import sys
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from unittest import TestCase, main, skipUnless
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try:
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from unittest.mock import patch, Mock
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except ImportError:
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from mock import patch, Mock
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from ..ansitowin32 import StreamWrapper
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from ..initialise import init, just_fix_windows_console, _wipe_internal_state_for_tests
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from .utils import osname, replace_by
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orig_stdout = sys.stdout
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orig_stderr = sys.stderr
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class InitTest(TestCase):
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@skipUnless(sys.stdout.isatty(), "sys.stdout is not a tty")
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def setUp(self):
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# sanity check
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self.assertNotWrapped()
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def tearDown(self):
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_wipe_internal_state_for_tests()
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sys.stdout = orig_stdout
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sys.stderr = orig_stderr
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def assertWrapped(self):
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self.assertIsNot(sys.stdout, orig_stdout, 'stdout should be wrapped')
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self.assertIsNot(sys.stderr, orig_stderr, 'stderr should be wrapped')
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self.assertTrue(isinstance(sys.stdout, StreamWrapper),
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'bad stdout wrapper')
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self.assertTrue(isinstance(sys.stderr, StreamWrapper),
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'bad stderr wrapper')
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def assertNotWrapped(self):
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self.assertIs(sys.stdout, orig_stdout, 'stdout should not be wrapped')
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self.assertIs(sys.stderr, orig_stderr, 'stderr should not be wrapped')
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@patch('colorama.initialise.reset_all')
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@patch('colorama.ansitowin32.winapi_test', lambda *_: True)
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@patch('colorama.ansitowin32.enable_vt_processing', lambda *_: False)
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def testInitWrapsOnWindows(self, _):
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with osname("nt"):
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init()
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self.assertWrapped()
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@patch('colorama.initialise.reset_all')
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@patch('colorama.ansitowin32.winapi_test', lambda *_: False)
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def testInitDoesntWrapOnEmulatedWindows(self, _):
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with osname("nt"):
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init()
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self.assertNotWrapped()
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def testInitDoesntWrapOnNonWindows(self):
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with osname("posix"):
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init()
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self.assertNotWrapped()
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def testInitDoesntWrapIfNone(self):
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with replace_by(None):
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init()
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# We can't use assertNotWrapped here because replace_by(None)
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# changes stdout/stderr already.
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self.assertIsNone(sys.stdout)
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self.assertIsNone(sys.stderr)
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def testInitAutoresetOnWrapsOnAllPlatforms(self):
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with osname("posix"):
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init(autoreset=True)
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self.assertWrapped()
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def testInitWrapOffDoesntWrapOnWindows(self):
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with osname("nt"):
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init(wrap=False)
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self.assertNotWrapped()
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def testInitWrapOffIncompatibleWithAutoresetOn(self):
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self.assertRaises(ValueError, lambda: init(autoreset=True, wrap=False))
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@patch('colorama.win32.SetConsoleTextAttribute')
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@patch('colorama.initialise.AnsiToWin32')
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def testAutoResetPassedOn(self, mockATW32, _):
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with osname("nt"):
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init(autoreset=True)
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self.assertEqual(len(mockATW32.call_args_list), 2)
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self.assertEqual(mockATW32.call_args_list[1][1]['autoreset'], True)
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self.assertEqual(mockATW32.call_args_list[0][1]['autoreset'], True)
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@patch('colorama.initialise.AnsiToWin32')
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def testAutoResetChangeable(self, mockATW32):
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with osname("nt"):
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init()
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init(autoreset=True)
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self.assertEqual(len(mockATW32.call_args_list), 4)
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self.assertEqual(mockATW32.call_args_list[2][1]['autoreset'], True)
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self.assertEqual(mockATW32.call_args_list[3][1]['autoreset'], True)
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init()
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self.assertEqual(len(mockATW32.call_args_list), 6)
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self.assertEqual(
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mockATW32.call_args_list[4][1]['autoreset'], False)
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self.assertEqual(
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mockATW32.call_args_list[5][1]['autoreset'], False)
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@patch('colorama.initialise.atexit.register')
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def testAtexitRegisteredOnlyOnce(self, mockRegister):
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init()
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self.assertTrue(mockRegister.called)
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mockRegister.reset_mock()
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init()
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self.assertFalse(mockRegister.called)
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class JustFixWindowsConsoleTest(TestCase):
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def _reset(self):
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_wipe_internal_state_for_tests()
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sys.stdout = orig_stdout
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sys.stderr = orig_stderr
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def tearDown(self):
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self._reset()
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@patch("colorama.ansitowin32.winapi_test", lambda: True)
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def testJustFixWindowsConsole(self):
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if sys.platform != "win32":
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# just_fix_windows_console should be a no-op
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just_fix_windows_console()
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self.assertIs(sys.stdout, orig_stdout)
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self.assertIs(sys.stderr, orig_stderr)
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else:
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def fake_std():
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# Emulate stdout=not a tty, stderr=tty
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# to check that we handle both cases correctly
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stdout = Mock()
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stdout.closed = False
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stdout.isatty.return_value = False
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stdout.fileno.return_value = 1
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sys.stdout = stdout
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stderr = Mock()
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stderr.closed = False
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stderr.isatty.return_value = True
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stderr.fileno.return_value = 2
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sys.stderr = stderr
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for native_ansi in [False, True]:
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with patch(
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'colorama.ansitowin32.enable_vt_processing',
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lambda *_: native_ansi
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):
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self._reset()
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fake_std()
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# Regular single-call test
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prev_stdout = sys.stdout
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prev_stderr = sys.stderr
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just_fix_windows_console()
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self.assertIs(sys.stdout, prev_stdout)
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if native_ansi:
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self.assertIs(sys.stderr, prev_stderr)
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else:
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self.assertIsNot(sys.stderr, prev_stderr)
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# second call without resetting is always a no-op
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prev_stdout = sys.stdout
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prev_stderr = sys.stderr
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just_fix_windows_console()
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self.assertIs(sys.stdout, prev_stdout)
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self.assertIs(sys.stderr, prev_stderr)
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self._reset()
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fake_std()
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# If init() runs first, just_fix_windows_console should be a no-op
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init()
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prev_stdout = sys.stdout
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prev_stderr = sys.stderr
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just_fix_windows_console()
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self.assertIs(prev_stdout, sys.stdout)
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self.assertIs(prev_stderr, sys.stderr)
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if __name__ == '__main__':
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main()
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