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Current File : //lib/python3/dist-packages/twisted/trial/test/test_keyboard.py

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Tests for interrupting tests with Control-C.
"""
from __future__ import annotations

from io import StringIO

from twisted.trial import reporter, runner, unittest


class TrialTest(unittest.SynchronousTestCase):
    def setUp(self) -> None:
        self.output = StringIO()
        self.reporter = reporter.TestResult()
        self.loader = runner.TestLoader()


class InterruptInTestTests(TrialTest):
    test_03_doNothing_run: bool | None

    class InterruptedTest(unittest.TestCase):
        def test_02_raiseInterrupt(self) -> None:
            raise KeyboardInterrupt

        def test_01_doNothing(self) -> None:
            pass

        def test_03_doNothing(self) -> None:
            InterruptInTestTests.test_03_doNothing_run = True

    def setUp(self) -> None:
        super().setUp()
        self.suite = self.loader.loadClass(InterruptInTestTests.InterruptedTest)
        InterruptInTestTests.test_03_doNothing_run = None

    def test_setUpOK(self) -> None:
        self.assertEqual(3, self.suite.countTestCases())
        self.assertEqual(0, self.reporter.testsRun)
        self.assertFalse(self.reporter.shouldStop)

    def test_interruptInTest(self) -> None:
        runner.TrialSuite([self.suite]).run(self.reporter)
        self.assertTrue(self.reporter.shouldStop)
        self.assertEqual(2, self.reporter.testsRun)
        self.assertFalse(
            InterruptInTestTests.test_03_doNothing_run, "test_03_doNothing ran."
        )


class InterruptInSetUpTests(TrialTest):
    testsRun = 0
    test_02_run: bool

    class InterruptedTest(unittest.TestCase):
        def setUp(self) -> None:
            if InterruptInSetUpTests.testsRun > 0:
                raise KeyboardInterrupt

        def test_01(self) -> None:
            InterruptInSetUpTests.testsRun += 1

        def test_02(self) -> None:
            InterruptInSetUpTests.testsRun += 1
            InterruptInSetUpTests.test_02_run = True

    def setUp(self) -> None:
        super().setUp()
        self.suite = self.loader.loadClass(InterruptInSetUpTests.InterruptedTest)
        InterruptInSetUpTests.test_02_run = False
        InterruptInSetUpTests.testsRun = 0

    def test_setUpOK(self) -> None:
        self.assertEqual(0, InterruptInSetUpTests.testsRun)
        self.assertEqual(2, self.suite.countTestCases())
        self.assertEqual(0, self.reporter.testsRun)
        self.assertFalse(self.reporter.shouldStop)

    def test_interruptInSetUp(self) -> None:
        runner.TrialSuite([self.suite]).run(self.reporter)
        self.assertTrue(self.reporter.shouldStop)
        self.assertEqual(2, self.reporter.testsRun)
        self.assertFalse(InterruptInSetUpTests.test_02_run, "test_02 ran")


class InterruptInTearDownTests(TrialTest):
    testsRun = 0
    test_02_run: bool

    class InterruptedTest(unittest.TestCase):
        def tearDown(self) -> None:
            if InterruptInTearDownTests.testsRun > 0:
                raise KeyboardInterrupt

        def test_01(self) -> None:
            InterruptInTearDownTests.testsRun += 1

        def test_02(self) -> None:
            InterruptInTearDownTests.testsRun += 1
            InterruptInTearDownTests.test_02_run = True

    def setUp(self) -> None:
        super().setUp()
        self.suite = self.loader.loadClass(InterruptInTearDownTests.InterruptedTest)
        InterruptInTearDownTests.testsRun = 0
        InterruptInTearDownTests.test_02_run = False

    def test_setUpOK(self) -> None:
        self.assertEqual(0, InterruptInTearDownTests.testsRun)
        self.assertEqual(2, self.suite.countTestCases())
        self.assertEqual(0, self.reporter.testsRun)
        self.assertFalse(self.reporter.shouldStop)

    def test_interruptInTearDown(self) -> None:
        runner.TrialSuite([self.suite]).run(self.reporter)
        self.assertEqual(1, self.reporter.testsRun)
        self.assertTrue(self.reporter.shouldStop)
        self.assertFalse(InterruptInTearDownTests.test_02_run, "test_02 ran")

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