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