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90 lines
2.9 KiB
Python
90 lines
2.9 KiB
Python
# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
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"""Tests for the pylint checker in :mod:`pylint.extensions.overlapping_exceptions
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"""
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from os.path import dirname, join
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from sys import version_info
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import pytest
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from pylint.extensions.overlapping_exceptions import OverlappingExceptionsChecker
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@pytest.fixture(scope="module")
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def checker(checker):
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return OverlappingExceptionsChecker
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@pytest.fixture(scope="module")
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def disable(disable):
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return ["I"]
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def test_overlapping_exceptions(linter):
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test = join(dirname(__file__), "data", "overlapping_exceptions.py")
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linter.check([test])
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msgs = linter.reporter.messages
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expected = [
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(13, "Overlapping exceptions (SomeException and SomeException are the same)"),
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(
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18,
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"Overlapping exceptions (SomeException is an ancestor class of SubclassException)",
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),
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(23, "Overlapping exceptions (SomeException and AliasException are the same)"),
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(
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28,
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"Overlapping exceptions (AliasException is an ancestor class of SubclassException)",
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),
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(34, "Overlapping exceptions (SomeException and AliasException are the same)"),
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(
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34,
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"Overlapping exceptions (SomeException is an ancestor class of SubclassException)",
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),
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(
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34,
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"Overlapping exceptions (AliasException is an ancestor class of SubclassException)",
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),
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(
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39,
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"Overlapping exceptions (ArithmeticError is an ancestor class of FloatingPointError)",
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),
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(
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44,
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"Overlapping exceptions (ValueError is an ancestor class of UnicodeDecodeError)",
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),
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]
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assert len(msgs) == len(expected)
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for msg, exp in zip(msgs, expected):
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assert msg.msg_id == "W0714"
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assert msg.symbol == "overlapping-except"
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assert msg.category == "warning"
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assert (msg.line, msg.msg) == exp
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@pytest.mark.skipif(version_info < (3, 3), reason="not relevant to Python version")
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def test_overlapping_exceptions_py33(linter):
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"""From Python 3.3 both IOError and socket.error are aliases for OSError."""
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test = join(dirname(__file__), "data", "overlapping_exceptions_py33.py")
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linter.check([test])
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msgs = linter.reporter.messages
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expected = [
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(7, "Overlapping exceptions (IOError and OSError are the same)"),
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(12, "Overlapping exceptions (socket.error and OSError are the same)"),
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(
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17,
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"Overlapping exceptions (socket.error is an ancestor class of ConnectionError)",
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),
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]
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assert len(msgs) == len(expected)
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for msg, exp in zip(msgs, expected):
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assert msg.msg_id == "W0714"
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assert msg.symbol == "overlapping-except"
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assert msg.category == "warning"
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assert (msg.line, msg.msg) == exp
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