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

"""
Tests for interrupting tests with Control-C.
"""

import StringIO

from twisted.trial import unittest
from twisted.trial import reporter, runner


class TrialTest(unittest.SynchronousTestCase):
def setUp(self):
self.output = StringIO.StringIO()
self.reporter = reporter.TestResult()
self.loader = runner.TestLoader()


class TestInterruptInTest(TrialTest):
class InterruptedTest(unittest.TestCase):
def test_02_raiseInterrupt(self):
raise KeyboardInterrupt

def test_01_doNothing(self):
pass

def test_03_doNothing(self):
TestInterruptInTest.test_03_doNothing_run = True

def setUp(self):
super(TestInterruptInTest, self).setUp()
self.suite = self.loader.loadClass(TestInterruptInTest.InterruptedTest)
TestInterruptInTest.test_03_doNothing_run = None

def test_setUpOK(self):
self.assertEqual(3, self.suite.countTestCases())
self.assertEqual(0, self.reporter.testsRun)
self.failIf(self.reporter.shouldStop)

def test_interruptInTest(self):
runner.TrialSuite([self.suite]).run(self.reporter)
self.failUnless(self.reporter.shouldStop)
self.assertEqual(2, self.reporter.testsRun)
self.failIf(TestInterruptInTest.test_03_doNothing_run,
"test_03_doNothing ran.")


class TestInterruptInSetUp(TrialTest):
testsRun = 0

class InterruptedTest(unittest.TestCase):
def setUp(self):
if TestInterruptInSetUp.testsRun > 0:
raise KeyboardInterrupt

def test_01(self):
TestInterruptInSetUp.testsRun += 1

def test_02(self):
TestInterruptInSetUp.testsRun += 1
TestInterruptInSetUp.test_02_run = True

def setUp(self):
super(TestInterruptInSetUp, self).setUp()
self.suite = self.loader.loadClass(
TestInterruptInSetUp.InterruptedTest)
TestInterruptInSetUp.test_02_run = False
TestInterruptInSetUp.testsRun = 0

def test_setUpOK(self):
self.assertEqual(0, TestInterruptInSetUp.testsRun)
self.assertEqual(2, self.suite.countTestCases())
self.assertEqual(0, self.reporter.testsRun)
self.failIf(self.reporter.shouldStop)

def test_interruptInSetUp(self):
runner.TrialSuite([self.suite]).run(self.reporter)
self.failUnless(self.reporter.shouldStop)
self.assertEqual(2, self.reporter.testsRun)
self.failIf(TestInterruptInSetUp.test_02_run,
"test_02 ran")


class TestInterruptInTearDown(TrialTest):
testsRun = 0

class InterruptedTest(unittest.TestCase):
def tearDown(self):
if TestInterruptInTearDown.testsRun > 0:
raise KeyboardInterrupt

def test_01(self):
TestInterruptInTearDown.testsRun += 1

def test_02(self):
TestInterruptInTearDown.testsRun += 1
TestInterruptInTearDown.test_02_run = True

def setUp(self):
super(TestInterruptInTearDown, self).setUp()
self.suite = self.loader.loadClass(
TestInterruptInTearDown.InterruptedTest)
TestInterruptInTearDown.testsRun = 0
TestInterruptInTearDown.test_02_run = False

def test_setUpOK(self):
self.assertEqual(0, TestInterruptInTearDown.testsRun)
self.assertEqual(2, self.suite.countTestCases())
self.assertEqual(0, self.reporter.testsRun)
self.failIf(self.reporter.shouldStop)

def test_interruptInTearDown(self):
runner.TrialSuite([self.suite]).run(self.reporter)
self.assertEqual(1, self.reporter.testsRun)
self.failUnless(self.reporter.shouldStop)
self.failIf(TestInterruptInTearDown.test_02_run,
"test_02 ran")