mirror of https://github.com/python/cpython
448 lines
15 KiB
Python
448 lines
15 KiB
Python
import unittest
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import gc
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import sys
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import weakref
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from test.test_unittest.support import LoggingResult, TestEquality
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### Support code for Test_TestSuite
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################################################################
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class Test(object):
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class Foo(unittest.TestCase):
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def test_1(self): pass
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def test_2(self): pass
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def test_3(self): pass
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def runTest(self): pass
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def _mk_TestSuite(*names):
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return unittest.TestSuite(Test.Foo(n) for n in names)
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################################################################
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class Test_TestSuite(unittest.TestCase, TestEquality):
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### Set up attributes needed by inherited tests
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################################################################
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# Used by TestEquality.test_eq
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eq_pairs = [(unittest.TestSuite(), unittest.TestSuite())
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,(unittest.TestSuite(), unittest.TestSuite([]))
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,(_mk_TestSuite('test_1'), _mk_TestSuite('test_1'))]
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# Used by TestEquality.test_ne
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ne_pairs = [(unittest.TestSuite(), _mk_TestSuite('test_1'))
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,(unittest.TestSuite([]), _mk_TestSuite('test_1'))
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,(_mk_TestSuite('test_1', 'test_2'), _mk_TestSuite('test_1', 'test_3'))
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,(_mk_TestSuite('test_1'), _mk_TestSuite('test_2'))]
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################################################################
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### /Set up attributes needed by inherited tests
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### Tests for TestSuite.__init__
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################################################################
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# "class TestSuite([tests])"
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#
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# The tests iterable should be optional
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def test_init__tests_optional(self):
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suite = unittest.TestSuite()
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self.assertEqual(suite.countTestCases(), 0)
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# countTestCases() still works after tests are run
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suite.run(unittest.TestResult())
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self.assertEqual(suite.countTestCases(), 0)
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# "class TestSuite([tests])"
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# ...
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# "If tests is given, it must be an iterable of individual test cases
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# or other test suites that will be used to build the suite initially"
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#
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# TestSuite should deal with empty tests iterables by allowing the
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# creation of an empty suite
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def test_init__empty_tests(self):
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suite = unittest.TestSuite([])
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self.assertEqual(suite.countTestCases(), 0)
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# countTestCases() still works after tests are run
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suite.run(unittest.TestResult())
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self.assertEqual(suite.countTestCases(), 0)
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# "class TestSuite([tests])"
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# ...
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# "If tests is given, it must be an iterable of individual test cases
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# or other test suites that will be used to build the suite initially"
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#
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# TestSuite should allow any iterable to provide tests
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def test_init__tests_from_any_iterable(self):
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def tests():
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yield unittest.FunctionTestCase(lambda: None)
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yield unittest.FunctionTestCase(lambda: None)
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suite_1 = unittest.TestSuite(tests())
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self.assertEqual(suite_1.countTestCases(), 2)
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suite_2 = unittest.TestSuite(suite_1)
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self.assertEqual(suite_2.countTestCases(), 2)
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suite_3 = unittest.TestSuite(set(suite_1))
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self.assertEqual(suite_3.countTestCases(), 2)
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# countTestCases() still works after tests are run
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suite_1.run(unittest.TestResult())
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self.assertEqual(suite_1.countTestCases(), 2)
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suite_2.run(unittest.TestResult())
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self.assertEqual(suite_2.countTestCases(), 2)
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suite_3.run(unittest.TestResult())
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self.assertEqual(suite_3.countTestCases(), 2)
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# "class TestSuite([tests])"
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# ...
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# "If tests is given, it must be an iterable of individual test cases
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# or other test suites that will be used to build the suite initially"
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#
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# Does TestSuite() also allow other TestSuite() instances to be present
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# in the tests iterable?
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def test_init__TestSuite_instances_in_tests(self):
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def tests():
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ftc = unittest.FunctionTestCase(lambda: None)
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yield unittest.TestSuite([ftc])
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yield unittest.FunctionTestCase(lambda: None)
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suite = unittest.TestSuite(tests())
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self.assertEqual(suite.countTestCases(), 2)
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# countTestCases() still works after tests are run
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suite.run(unittest.TestResult())
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self.assertEqual(suite.countTestCases(), 2)
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################################################################
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### /Tests for TestSuite.__init__
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# Container types should support the iter protocol
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def test_iter(self):
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test1 = unittest.FunctionTestCase(lambda: None)
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test2 = unittest.FunctionTestCase(lambda: None)
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suite = unittest.TestSuite((test1, test2))
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self.assertEqual(list(suite), [test1, test2])
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# "Return the number of tests represented by the this test object.
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# ...this method is also implemented by the TestSuite class, which can
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# return larger [greater than 1] values"
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#
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# Presumably an empty TestSuite returns 0?
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def test_countTestCases_zero_simple(self):
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suite = unittest.TestSuite()
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self.assertEqual(suite.countTestCases(), 0)
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# "Return the number of tests represented by the this test object.
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# ...this method is also implemented by the TestSuite class, which can
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# return larger [greater than 1] values"
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#
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# Presumably an empty TestSuite (even if it contains other empty
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# TestSuite instances) returns 0?
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def test_countTestCases_zero_nested(self):
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class Test1(unittest.TestCase):
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def test(self):
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pass
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suite = unittest.TestSuite([unittest.TestSuite()])
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self.assertEqual(suite.countTestCases(), 0)
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# "Return the number of tests represented by the this test object.
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# ...this method is also implemented by the TestSuite class, which can
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# return larger [greater than 1] values"
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def test_countTestCases_simple(self):
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test1 = unittest.FunctionTestCase(lambda: None)
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test2 = unittest.FunctionTestCase(lambda: None)
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suite = unittest.TestSuite((test1, test2))
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self.assertEqual(suite.countTestCases(), 2)
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# countTestCases() still works after tests are run
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suite.run(unittest.TestResult())
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self.assertEqual(suite.countTestCases(), 2)
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# "Return the number of tests represented by the this test object.
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# ...this method is also implemented by the TestSuite class, which can
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# return larger [greater than 1] values"
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#
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# Make sure this holds for nested TestSuite instances, too
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def test_countTestCases_nested(self):
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class Test1(unittest.TestCase):
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def test1(self): pass
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def test2(self): pass
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test2 = unittest.FunctionTestCase(lambda: None)
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test3 = unittest.FunctionTestCase(lambda: None)
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child = unittest.TestSuite((Test1('test2'), test2))
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parent = unittest.TestSuite((test3, child, Test1('test1')))
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self.assertEqual(parent.countTestCases(), 4)
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# countTestCases() still works after tests are run
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parent.run(unittest.TestResult())
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self.assertEqual(parent.countTestCases(), 4)
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self.assertEqual(child.countTestCases(), 2)
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# "Run the tests associated with this suite, collecting the result into
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# the test result object passed as result."
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#
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# And if there are no tests? What then?
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def test_run__empty_suite(self):
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events = []
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result = LoggingResult(events)
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suite = unittest.TestSuite()
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suite.run(result)
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self.assertEqual(events, [])
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# "Note that unlike TestCase.run(), TestSuite.run() requires the
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# "result object to be passed in."
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def test_run__requires_result(self):
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suite = unittest.TestSuite()
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try:
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suite.run()
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except TypeError:
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pass
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else:
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self.fail("Failed to raise TypeError")
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# "Run the tests associated with this suite, collecting the result into
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# the test result object passed as result."
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def test_run(self):
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events = []
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result = LoggingResult(events)
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class LoggingCase(unittest.TestCase):
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def run(self, result):
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events.append('run %s' % self._testMethodName)
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def test1(self): pass
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def test2(self): pass
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tests = [LoggingCase('test1'), LoggingCase('test2')]
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unittest.TestSuite(tests).run(result)
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self.assertEqual(events, ['run test1', 'run test2'])
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# "Add a TestCase ... to the suite"
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def test_addTest__TestCase(self):
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class Foo(unittest.TestCase):
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def test(self): pass
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test = Foo('test')
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suite = unittest.TestSuite()
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suite.addTest(test)
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self.assertEqual(suite.countTestCases(), 1)
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self.assertEqual(list(suite), [test])
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# countTestCases() still works after tests are run
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suite.run(unittest.TestResult())
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self.assertEqual(suite.countTestCases(), 1)
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# "Add a ... TestSuite to the suite"
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def test_addTest__TestSuite(self):
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class Foo(unittest.TestCase):
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def test(self): pass
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suite_2 = unittest.TestSuite([Foo('test')])
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suite = unittest.TestSuite()
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suite.addTest(suite_2)
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self.assertEqual(suite.countTestCases(), 1)
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self.assertEqual(list(suite), [suite_2])
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# countTestCases() still works after tests are run
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suite.run(unittest.TestResult())
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self.assertEqual(suite.countTestCases(), 1)
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# "Add all the tests from an iterable of TestCase and TestSuite
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# instances to this test suite."
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#
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# "This is equivalent to iterating over tests, calling addTest() for
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# each element"
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def test_addTests(self):
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class Foo(unittest.TestCase):
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def test_1(self): pass
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def test_2(self): pass
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test_1 = Foo('test_1')
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test_2 = Foo('test_2')
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inner_suite = unittest.TestSuite([test_2])
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def gen():
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yield test_1
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yield test_2
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yield inner_suite
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suite_1 = unittest.TestSuite()
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suite_1.addTests(gen())
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self.assertEqual(list(suite_1), list(gen()))
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# "This is equivalent to iterating over tests, calling addTest() for
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# each element"
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suite_2 = unittest.TestSuite()
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for t in gen():
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suite_2.addTest(t)
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self.assertEqual(suite_1, suite_2)
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# "Add all the tests from an iterable of TestCase and TestSuite
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# instances to this test suite."
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#
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# What happens if it doesn't get an iterable?
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def test_addTest__noniterable(self):
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suite = unittest.TestSuite()
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try:
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suite.addTests(5)
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except TypeError:
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pass
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else:
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self.fail("Failed to raise TypeError")
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def test_addTest__noncallable(self):
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suite = unittest.TestSuite()
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self.assertRaises(TypeError, suite.addTest, 5)
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def test_addTest__casesuiteclass(self):
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suite = unittest.TestSuite()
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self.assertRaises(TypeError, suite.addTest, Test_TestSuite)
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self.assertRaises(TypeError, suite.addTest, unittest.TestSuite)
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def test_addTests__string(self):
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suite = unittest.TestSuite()
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self.assertRaises(TypeError, suite.addTests, "foo")
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def test_function_in_suite(self):
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def f(_):
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pass
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suite = unittest.TestSuite()
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suite.addTest(f)
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# when the bug is fixed this line will not crash
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suite.run(unittest.TestResult())
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def test_remove_test_at_index(self):
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if not unittest.BaseTestSuite._cleanup:
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raise unittest.SkipTest("Suite cleanup is disabled")
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suite = unittest.TestSuite()
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suite._tests = [1, 2, 3]
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suite._removeTestAtIndex(1)
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self.assertEqual([1, None, 3], suite._tests)
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def test_remove_test_at_index_not_indexable(self):
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if not unittest.BaseTestSuite._cleanup:
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raise unittest.SkipTest("Suite cleanup is disabled")
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suite = unittest.TestSuite()
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suite._tests = None
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# if _removeAtIndex raises for noniterables this next line will break
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suite._removeTestAtIndex(2)
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def assert_garbage_collect_test_after_run(self, TestSuiteClass):
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if not unittest.BaseTestSuite._cleanup:
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raise unittest.SkipTest("Suite cleanup is disabled")
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class Foo(unittest.TestCase):
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def test_nothing(self):
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pass
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test = Foo('test_nothing')
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wref = weakref.ref(test)
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suite = TestSuiteClass([wref()])
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suite.run(unittest.TestResult())
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del test
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# for the benefit of non-reference counting implementations
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gc.collect()
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self.assertEqual(suite._tests, [None])
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self.assertIsNone(wref())
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def test_garbage_collect_test_after_run_BaseTestSuite(self):
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self.assert_garbage_collect_test_after_run(unittest.BaseTestSuite)
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def test_garbage_collect_test_after_run_TestSuite(self):
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self.assert_garbage_collect_test_after_run(unittest.TestSuite)
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def test_basetestsuite(self):
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class Test(unittest.TestCase):
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wasSetUp = False
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wasTornDown = False
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@classmethod
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def setUpClass(cls):
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cls.wasSetUp = True
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@classmethod
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def tearDownClass(cls):
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cls.wasTornDown = True
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def testPass(self):
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pass
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def testFail(self):
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fail
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class Module(object):
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wasSetUp = False
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wasTornDown = False
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@staticmethod
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def setUpModule():
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Module.wasSetUp = True
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@staticmethod
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def tearDownModule():
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Module.wasTornDown = True
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Test.__module__ = 'Module'
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sys.modules['Module'] = Module
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self.addCleanup(sys.modules.pop, 'Module')
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suite = unittest.BaseTestSuite()
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suite.addTests([Test('testPass'), Test('testFail')])
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self.assertEqual(suite.countTestCases(), 2)
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result = unittest.TestResult()
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suite.run(result)
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self.assertFalse(Module.wasSetUp)
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self.assertFalse(Module.wasTornDown)
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self.assertFalse(Test.wasSetUp)
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self.assertFalse(Test.wasTornDown)
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self.assertEqual(len(result.errors), 1)
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self.assertEqual(len(result.failures), 0)
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self.assertEqual(result.testsRun, 2)
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self.assertEqual(suite.countTestCases(), 2)
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def test_overriding_call(self):
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class MySuite(unittest.TestSuite):
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called = False
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def __call__(self, *args, **kw):
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self.called = True
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unittest.TestSuite.__call__(self, *args, **kw)
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suite = MySuite()
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result = unittest.TestResult()
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wrapper = unittest.TestSuite()
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wrapper.addTest(suite)
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wrapper(result)
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self.assertTrue(suite.called)
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# reusing results should be permitted even if abominable
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self.assertFalse(result._testRunEntered)
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if __name__ == '__main__':
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unittest.main()
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