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from twisted.trial import unittest
from twisted.trial.runner import TestSuite, suiteVisit
pyunit = __import__('unittest')
class MockVisitor(object):
def __init__(self):
self.calls = []
def __call__(self, testCase):
self.calls.append(testCase)
class TestTestVisitor(unittest.TestCase):
def setUp(self):
self.visitor = MockVisitor()
def test_visitCase(self):
"""
Test that C{visit} works for a single test case.
"""
testCase = TestTestVisitor('test_visitCase')
testCase.visit(self.visitor)
self.assertEqual(self.visitor.calls, [testCase])
def test_visitSuite(self):
"""
Test that C{visit} hits all tests in a suite.
"""
tests = [TestTestVisitor('test_visitCase'),
TestTestVisitor('test_visitSuite')]
testSuite = TestSuite(tests)
testSuite.visit(self.visitor)
self.assertEqual(self.visitor.calls, tests)
def test_visitEmptySuite(self):
"""
Test that C{visit} on an empty suite hits nothing.
"""
TestSuite().visit(self.visitor)
self.assertEqual(self.visitor.calls, [])
def test_visitNestedSuite(self):
"""
Test that C{visit} recurses through suites.
"""
tests = [TestTestVisitor('test_visitCase'),
TestTestVisitor('test_visitSuite')]
testSuite = TestSuite([TestSuite([test]) for test in tests])
testSuite.visit(self.visitor)
self.assertEqual(self.visitor.calls, tests)
def test_visitPyunitSuite(self):
"""
Test that C{suiteVisit} visits stdlib unittest suites
"""
test = TestTestVisitor('test_visitPyunitSuite')
suite = pyunit.TestSuite([test])
suiteVisit(suite, self.visitor)
self.assertEqual(self.visitor.calls, [test])
def test_visitPyunitCase(self):
"""
Test that a stdlib test case in a suite gets visited.
"""
class PyunitCase(pyunit.TestCase):
def test_foo(self):
pass
test = PyunitCase('test_foo')
TestSuite([test]).visit(self.visitor)
self.assertEqual(
[call.id() for call in self.visitor.calls], [test.id()])