Current File : //lib/python3/dist-packages/hyperlink/test/test_common.py
"""
Tests for hyperlink.test.common
"""
from typing import Any
from unittest import TestCase
from .common import HyperlinkTestCase
class _ExpectedException(Exception):
"""An exception used to test HyperlinkTestCase.assertRaises."""
class _UnexpectedException(Exception):
"""An exception used to test HyperlinkTestCase.assertRaises."""
class TestHyperlink(TestCase):
"""Tests for HyperlinkTestCase"""
def setUp(self):
# type: () -> None
self.hyperlink_test = HyperlinkTestCase("run")
def test_assertRaisesWithCallable(self):
# type: () -> None
"""HyperlinkTestCase.assertRaises does not raise an AssertionError
when given a callable that, when called with the provided
arguments, raises the expected exception.
"""
called_with = []
def raisesExpected(*args, **kwargs):
# type: (Any, Any) -> None
called_with.append((args, kwargs))
raise _ExpectedException
self.hyperlink_test.assertRaises(
_ExpectedException, raisesExpected, 1, keyword=True
)
self.assertEqual(called_with, [((1,), {"keyword": True})])
def test_assertRaisesWithCallableUnexpectedException(self):
# type: () -> None
"""When given a callable that raises an unexpected exception,
HyperlinkTestCase.assertRaises raises that exception.
"""
def doesNotRaiseExpected(*args, **kwargs):
# type: (Any, Any) -> None
raise _UnexpectedException
try:
self.hyperlink_test.assertRaises(
_ExpectedException, doesNotRaiseExpected
)
except _UnexpectedException:
pass
def test_assertRaisesWithCallableDoesNotRaise(self):
# type: () -> None
"""HyperlinkTestCase.assertRaises raises an AssertionError when given
a callable that, when called, does not raise any exception.
"""
def doesNotRaise(*args, **kwargs):
# type: (Any, Any) -> None
pass
try:
self.hyperlink_test.assertRaises(_ExpectedException, doesNotRaise)
except AssertionError:
pass
def test_assertRaisesContextManager(self):
# type: () -> None
"""HyperlinkTestCase.assertRaises does not raise an AssertionError
when used as a context manager with a suite that raises the
expected exception. The context manager stores the exception
instance under its `exception` instance variable.
"""
with self.hyperlink_test.assertRaises(_ExpectedException) as cm:
raise _ExpectedException
self.assertTrue( # type: ignore[unreachable]
isinstance(cm.exception, _ExpectedException)
)
def test_assertRaisesContextManagerUnexpectedException(self):
# type: () -> None
"""When used as a context manager with a block that raises an
unexpected exception, HyperlinkTestCase.assertRaises raises
that unexpected exception.
"""
try:
with self.hyperlink_test.assertRaises(_ExpectedException):
raise _UnexpectedException
except _UnexpectedException:
pass
def test_assertRaisesContextManagerDoesNotRaise(self):
# type: () -> None
"""HyperlinkTestcase.assertRaises raises an AssertionError when used
as a context manager with a block that does not raise any
exception.
"""
try:
with self.hyperlink_test.assertRaises(_ExpectedException):
pass
except AssertionError:
pass
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