117 lines
3.6 KiB
Python
117 lines
3.6 KiB
Python
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"""
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Tests for hyperlink.test.common
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"""
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from typing import Any
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from unittest import TestCase
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from .common import HyperlinkTestCase
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class _ExpectedException(Exception):
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"""An exception used to test HyperlinkTestCase.assertRaises."""
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class _UnexpectedException(Exception):
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"""An exception used to test HyperlinkTestCase.assertRaises."""
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class TestHyperlink(TestCase):
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"""Tests for HyperlinkTestCase"""
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def setUp(self):
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# type: () -> None
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self.hyperlink_test = HyperlinkTestCase("run")
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def test_assertRaisesWithCallable(self):
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# type: () -> None
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"""HyperlinkTestCase.assertRaises does not raise an AssertionError
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when given a callable that, when called with the provided
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arguments, raises the expected exception.
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"""
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called_with = []
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def raisesExpected(*args, **kwargs):
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# type: (Any, Any) -> None
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called_with.append((args, kwargs))
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raise _ExpectedException
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self.hyperlink_test.assertRaises(
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_ExpectedException, raisesExpected, 1, keyword=True
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)
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self.assertEqual(called_with, [((1,), {"keyword": True})])
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def test_assertRaisesWithCallableUnexpectedException(self):
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# type: () -> None
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"""When given a callable that raises an unexpected exception,
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HyperlinkTestCase.assertRaises raises that exception.
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"""
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def doesNotRaiseExpected(*args, **kwargs):
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# type: (Any, Any) -> None
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raise _UnexpectedException
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try:
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self.hyperlink_test.assertRaises(
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_ExpectedException, doesNotRaiseExpected
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)
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except _UnexpectedException:
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pass
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def test_assertRaisesWithCallableDoesNotRaise(self):
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# type: () -> None
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"""HyperlinkTestCase.assertRaises raises an AssertionError when given
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a callable that, when called, does not raise any exception.
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"""
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def doesNotRaise(*args, **kwargs):
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# type: (Any, Any) -> None
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pass
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try:
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self.hyperlink_test.assertRaises(_ExpectedException, doesNotRaise)
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except AssertionError:
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pass
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def test_assertRaisesContextManager(self):
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# type: () -> None
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"""HyperlinkTestCase.assertRaises does not raise an AssertionError
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when used as a context manager with a suite that raises the
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expected exception. The context manager stores the exception
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instance under its `exception` instance variable.
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"""
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with self.hyperlink_test.assertRaises(_ExpectedException) as cm:
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raise _ExpectedException
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self.assertTrue( # type: ignore[unreachable]
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isinstance(cm.exception, _ExpectedException)
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)
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def test_assertRaisesContextManagerUnexpectedException(self):
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# type: () -> None
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"""When used as a context manager with a block that raises an
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unexpected exception, HyperlinkTestCase.assertRaises raises
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that unexpected exception.
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"""
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try:
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with self.hyperlink_test.assertRaises(_ExpectedException):
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raise _UnexpectedException
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except _UnexpectedException:
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pass
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def test_assertRaisesContextManagerDoesNotRaise(self):
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# type: () -> None
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"""HyperlinkTestcase.assertRaises raises an AssertionError when used
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as a context manager with a block that does not raise any
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exception.
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"""
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try:
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with self.hyperlink_test.assertRaises(_ExpectedException):
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pass
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except AssertionError:
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pass
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