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# Copyright (c) 2008-2016 testtools developers. See LICENSE for details.
import warnings
from typing import ClassVar
from testtools import TestCase
from testtools.matchers import (
AfterPreprocessing,
Contains,
Equals,
HasLength,
MatchesListwise,
MatchesStructure,
)
from testtools.matchers._warnings import IsDeprecated, WarningMessage, Warnings
from ..helpers import FullStackRunTest
from ..matchers.helpers import TestMatchersInterface
def make_warning(warning_type, message):
warnings.warn(message, warning_type, 2)
def make_warning_message(message, category, filename=None, lineno=None, line=None):
return warnings.WarningMessage(
message=message, category=category, filename=filename, lineno=lineno, line=line
)
class TestWarningMessageCategoryTypeInterface(TestCase, TestMatchersInterface):
"""Tests for `testtools.matchers._warnings.WarningMessage`.
In particular matching the ``category_type``.
"""
matches_matcher: ClassVar = WarningMessage(category_type=DeprecationWarning)
warning_foo = make_warning_message("foo", DeprecationWarning)
warning_bar = make_warning_message("bar", SyntaxWarning)
warning_base = make_warning_message("base", Warning)
matches_matches: ClassVar = [warning_foo]
matches_mismatches: ClassVar = [warning_bar, warning_base]
str_examples: ClassVar[list] = []
describe_examples: ClassVar[list] = []
class TestWarningMessageMessageInterface(TestCase, TestMatchersInterface):
"""Tests for `testtools.matchers._warnings.WarningMessage`.
In particular matching the ``message``.
"""
matches_matcher: ClassVar = WarningMessage(
category_type=DeprecationWarning, message=Equals("foo")
)
warning_foo = make_warning_message("foo", DeprecationWarning)
warning_bar = make_warning_message("bar", DeprecationWarning)
matches_matches: ClassVar = [warning_foo]
matches_mismatches: ClassVar = [warning_bar]
str_examples: ClassVar[list] = []
describe_examples: ClassVar[list] = []
class TestWarningMessageFilenameInterface(TestCase, TestMatchersInterface):
"""Tests for `testtools.matchers._warnings.WarningMessage`.
In particular matching the ``filename``.
"""
matches_matcher: ClassVar = WarningMessage(
category_type=DeprecationWarning, filename=Equals("a")
)
warning_foo = make_warning_message("foo", DeprecationWarning, filename="a")
warning_bar = make_warning_message("bar", DeprecationWarning, filename="b")
matches_matches: ClassVar = [warning_foo]
matches_mismatches: ClassVar = [warning_bar]
str_examples: ClassVar[list] = []
describe_examples: ClassVar[list] = []
class TestWarningMessageLineNumberInterface(TestCase, TestMatchersInterface):
"""Tests for `testtools.matchers._warnings.WarningMessage`.
In particular matching the ``lineno``.
"""
matches_matcher: ClassVar = WarningMessage(
category_type=DeprecationWarning, lineno=Equals(42)
)
warning_foo = make_warning_message("foo", DeprecationWarning, lineno=42)
warning_bar = make_warning_message("bar", DeprecationWarning, lineno=21)
matches_matches: ClassVar = [warning_foo]
matches_mismatches: ClassVar = [warning_bar]
str_examples: ClassVar[list] = []
describe_examples: ClassVar[list] = []
class TestWarningMessageLineInterface(TestCase, TestMatchersInterface):
"""Tests for `testtools.matchers._warnings.WarningMessage`.
In particular matching the ``line``.
"""
matches_matcher: ClassVar = WarningMessage(
category_type=DeprecationWarning, line=Equals("x")
)
warning_foo = make_warning_message("foo", DeprecationWarning, line="x")
warning_bar = make_warning_message("bar", DeprecationWarning, line="y")
matches_matches: ClassVar = [warning_foo]
matches_mismatches: ClassVar = [warning_bar]
str_examples: ClassVar[list] = []
describe_examples: ClassVar[list] = []
class TestWarningsInterface(TestCase, TestMatchersInterface):
"""Tests for `testtools.matchers._warnings.Warnings`.
Specifically without the optional argument.
"""
matches_matcher: ClassVar = Warnings()
@staticmethod
def old_func():
warnings.warn("old_func is deprecated", DeprecationWarning, 2)
matches_matches: ClassVar = [old_func]
matches_mismatches: ClassVar = [lambda: None]
# Tricky to get function objects to render constantly, and the interfaces
# helper uses assertEqual rather than (for instance) DocTestMatches.
str_examples: ClassVar[list] = []
describe_examples: ClassVar[list] = []
class TestWarningsMatcherInterface(TestCase, TestMatchersInterface):
"""Tests for `testtools.matchers._warnings.Warnings`.
Specifically with the optional matcher argument.
"""
matches_matcher: ClassVar = Warnings(
warnings_matcher=MatchesListwise(
[MatchesStructure(message=AfterPreprocessing(str, Contains("old_func")))]
)
)
@staticmethod
def old_func():
warnings.warn("old_func is deprecated", DeprecationWarning, 2)
@staticmethod
def older_func():
warnings.warn("older_func is deprecated", DeprecationWarning, 2)
matches_matches: ClassVar = [old_func]
matches_mismatches: ClassVar = [lambda: None, older_func]
str_examples: ClassVar[list] = []
describe_examples: ClassVar[list] = []
class TestWarningsMatcherNoWarningsInterface(TestCase, TestMatchersInterface):
"""Tests for `testtools.matchers._warnings.Warnings`.
Specifically with the optional matcher argument matching that there were no
warnings.
"""
matches_matcher: ClassVar = Warnings(warnings_matcher=HasLength(0))
@staticmethod
def nowarning_func():
pass
@staticmethod
def warning_func():
warnings.warn("warning_func is deprecated", DeprecationWarning, 2)
matches_matches: ClassVar = [nowarning_func]
matches_mismatches: ClassVar = [warning_func]
str_examples: ClassVar[list] = []
describe_examples: ClassVar[list] = []
class TestWarningMessage(TestCase):
"""Tests for `testtools.matchers._warnings.WarningMessage`."""
run_tests_with = FullStackRunTest
def test_category(self):
def old_func():
warnings.warn("old_func is deprecated", DeprecationWarning, 2)
self.assertThat(old_func, IsDeprecated(Contains("old_func")))
class TestIsDeprecated(TestCase):
"""Tests for `testtools.matchers._warnings.IsDeprecated`."""
run_tests_with = FullStackRunTest
def test_warning(self):
def old_func():
warnings.warn("old_func is deprecated", DeprecationWarning, 2)
self.assertThat(old_func, IsDeprecated(Contains("old_func")))
def test_suite():
from unittest import TestLoader
return TestLoader().loadTestsFromName(__name__)
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