Andrew K. Choi
ddce9f5125
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18 lines
629 B
Python
18 lines
629 B
Python
from __future__ import annotations
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import os
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from unittest import TestCase, mock
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from mypy.util import get_terminal_width
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class TestGetTerminalSize(TestCase):
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def test_get_terminal_size_in_pty_defaults_to_80(self) -> None:
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# when run using a pty, `os.get_terminal_size()` returns `0, 0`
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ret = os.terminal_size((0, 0))
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mock_environ = os.environ.copy()
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mock_environ.pop("COLUMNS", None)
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with mock.patch.object(os, "get_terminal_size", return_value=ret):
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with mock.patch.dict(os.environ, values=mock_environ, clear=True):
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assert get_terminal_width() == 80
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