mirror of https://github.com/python/cpython
358 lines
11 KiB
Python
358 lines
11 KiB
Python
import io
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import os
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import sys
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import unittest
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class Test_TestProgram(unittest.TestCase):
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def test_discovery_from_dotted_path(self):
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loader = unittest.TestLoader()
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tests = [self]
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expectedPath = os.path.abspath(os.path.dirname(unittest.test.__file__))
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self.wasRun = False
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def _find_tests(start_dir, pattern):
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self.wasRun = True
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self.assertEqual(start_dir, expectedPath)
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return tests
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loader._find_tests = _find_tests
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suite = loader.discover('unittest.test')
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self.assertTrue(self.wasRun)
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self.assertEqual(suite._tests, tests)
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# Horrible white box test
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def testNoExit(self):
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result = object()
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test = object()
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class FakeRunner(object):
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def run(self, test):
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self.test = test
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return result
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runner = FakeRunner()
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oldParseArgs = unittest.TestProgram.parseArgs
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def restoreParseArgs():
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unittest.TestProgram.parseArgs = oldParseArgs
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unittest.TestProgram.parseArgs = lambda *args: None
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self.addCleanup(restoreParseArgs)
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def removeTest():
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del unittest.TestProgram.test
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unittest.TestProgram.test = test
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self.addCleanup(removeTest)
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program = unittest.TestProgram(testRunner=runner, exit=False, verbosity=2)
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self.assertEqual(program.result, result)
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self.assertEqual(runner.test, test)
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self.assertEqual(program.verbosity, 2)
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class FooBar(unittest.TestCase):
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def testPass(self):
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assert True
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def testFail(self):
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assert False
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class FooBarLoader(unittest.TestLoader):
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"""Test loader that returns a suite containing FooBar."""
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def loadTestsFromModule(self, module):
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return self.suiteClass(
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[self.loadTestsFromTestCase(Test_TestProgram.FooBar)])
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def test_NonExit(self):
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program = unittest.main(exit=False,
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argv=["foobar"],
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testRunner=unittest.TextTestRunner(stream=io.StringIO()),
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testLoader=self.FooBarLoader())
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self.assertTrue(hasattr(program, 'result'))
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def test_Exit(self):
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self.assertRaises(
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SystemExit,
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unittest.main,
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argv=["foobar"],
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testRunner=unittest.TextTestRunner(stream=io.StringIO()),
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exit=True,
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testLoader=self.FooBarLoader())
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def test_ExitAsDefault(self):
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self.assertRaises(
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SystemExit,
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unittest.main,
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argv=["foobar"],
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testRunner=unittest.TextTestRunner(stream=io.StringIO()),
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testLoader=self.FooBarLoader())
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class InitialisableProgram(unittest.TestProgram):
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exit = False
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result = None
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verbosity = 1
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defaultTest = None
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testRunner = None
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testLoader = unittest.defaultTestLoader
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progName = 'test'
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test = 'test'
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def __init__(self, *args):
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pass
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RESULT = object()
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class FakeRunner(object):
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initArgs = None
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test = None
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raiseError = False
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def __init__(self, **kwargs):
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FakeRunner.initArgs = kwargs
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if FakeRunner.raiseError:
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FakeRunner.raiseError = False
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raise TypeError
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def run(self, test):
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FakeRunner.test = test
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return RESULT
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class TestCommandLineArgs(unittest.TestCase):
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def setUp(self):
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self.program = InitialisableProgram()
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self.program.createTests = lambda: None
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FakeRunner.initArgs = None
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FakeRunner.test = None
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FakeRunner.raiseError = False
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def testHelpAndUnknown(self):
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program = self.program
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def usageExit(msg=None):
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program.msg = msg
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program.exit = True
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program.usageExit = usageExit
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for opt in '-h', '-H', '--help':
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program.exit = False
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program.parseArgs([None, opt])
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self.assertTrue(program.exit)
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self.assertIsNone(program.msg)
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program.parseArgs([None, '-$'])
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self.assertTrue(program.exit)
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self.assertIsNotNone(program.msg)
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def testVerbosity(self):
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program = self.program
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for opt in '-q', '--quiet':
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program.verbosity = 1
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program.parseArgs([None, opt])
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self.assertEqual(program.verbosity, 0)
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for opt in '-v', '--verbose':
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program.verbosity = 1
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program.parseArgs([None, opt])
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self.assertEqual(program.verbosity, 2)
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def testBufferCatchFailfast(self):
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program = self.program
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for arg, attr in (('buffer', 'buffer'), ('failfast', 'failfast'),
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('catch', 'catchbreak')):
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if attr == 'catch' and not hasInstallHandler:
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continue
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short_opt = '-%s' % arg[0]
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long_opt = '--%s' % arg
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for opt in short_opt, long_opt:
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setattr(program, attr, None)
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program.parseArgs([None, opt])
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self.assertTrue(getattr(program, attr))
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for opt in short_opt, long_opt:
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not_none = object()
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setattr(program, attr, not_none)
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program.parseArgs([None, opt])
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self.assertEqual(getattr(program, attr), not_none)
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def testWarning(self):
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"""Test the warnings argument"""
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# see #10535
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class FakeTP(unittest.TestProgram):
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def parseArgs(self, *args, **kw): pass
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def runTests(self, *args, **kw): pass
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warnoptions = sys.warnoptions
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try:
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sys.warnoptions[:] = []
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# no warn options, no arg -> default
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self.assertEqual(FakeTP().warnings, 'default')
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# no warn options, w/ arg -> arg value
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self.assertEqual(FakeTP(warnings='ignore').warnings, 'ignore')
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sys.warnoptions[:] = ['somevalue']
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# warn options, no arg -> None
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# warn options, w/ arg -> arg value
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self.assertEqual(FakeTP().warnings, None)
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self.assertEqual(FakeTP(warnings='ignore').warnings, 'ignore')
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finally:
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sys.warnoptions[:] = warnoptions
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def testRunTestsRunnerClass(self):
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program = self.program
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program.testRunner = FakeRunner
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program.verbosity = 'verbosity'
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program.failfast = 'failfast'
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program.buffer = 'buffer'
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program.warnings = 'warnings'
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program.runTests()
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self.assertEqual(FakeRunner.initArgs, {'verbosity': 'verbosity',
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'failfast': 'failfast',
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'buffer': 'buffer',
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'warnings': 'warnings'})
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self.assertEqual(FakeRunner.test, 'test')
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self.assertIs(program.result, RESULT)
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def testRunTestsRunnerInstance(self):
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program = self.program
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program.testRunner = FakeRunner()
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FakeRunner.initArgs = None
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program.runTests()
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# A new FakeRunner should not have been instantiated
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self.assertIsNone(FakeRunner.initArgs)
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self.assertEqual(FakeRunner.test, 'test')
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self.assertIs(program.result, RESULT)
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def testRunTestsOldRunnerClass(self):
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program = self.program
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FakeRunner.raiseError = True
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program.testRunner = FakeRunner
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program.verbosity = 'verbosity'
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program.failfast = 'failfast'
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program.buffer = 'buffer'
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program.test = 'test'
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program.runTests()
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# If initialising raises a type error it should be retried
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# without the new keyword arguments
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self.assertEqual(FakeRunner.initArgs, {})
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self.assertEqual(FakeRunner.test, 'test')
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self.assertIs(program.result, RESULT)
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def testCatchBreakInstallsHandler(self):
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module = sys.modules['unittest.main']
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original = module.installHandler
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def restore():
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module.installHandler = original
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self.addCleanup(restore)
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self.installed = False
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def fakeInstallHandler():
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self.installed = True
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module.installHandler = fakeInstallHandler
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program = self.program
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program.catchbreak = True
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program.testRunner = FakeRunner
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program.runTests()
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self.assertTrue(self.installed)
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def _patch_isfile(self, names, exists=True):
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def isfile(path):
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return path in names
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original = os.path.isfile
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os.path.isfile = isfile
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def restore():
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os.path.isfile = original
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self.addCleanup(restore)
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def testParseArgsFileNames(self):
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# running tests with filenames instead of module names
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program = self.program
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argv = ['progname', 'foo.py', 'bar.Py', 'baz.PY', 'wing.txt']
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self._patch_isfile(argv)
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program.createTests = lambda: None
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program.parseArgs(argv)
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# note that 'wing.txt' is not a Python file so the name should
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# *not* be converted to a module name
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expected = ['foo', 'bar', 'baz', 'wing.txt']
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self.assertEqual(program.testNames, expected)
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def testParseArgsFilePaths(self):
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program = self.program
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argv = ['progname', 'foo/bar/baz.py', 'green\\red.py']
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self._patch_isfile(argv)
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program.createTests = lambda: None
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program.parseArgs(argv)
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expected = ['foo.bar.baz', 'green.red']
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self.assertEqual(program.testNames, expected)
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def testParseArgsNonExistentFiles(self):
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program = self.program
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argv = ['progname', 'foo/bar/baz.py', 'green\\red.py']
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self._patch_isfile([])
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program.createTests = lambda: None
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program.parseArgs(argv)
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self.assertEqual(program.testNames, argv[1:])
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def testParseArgsAbsolutePathsThatCanBeConverted(self):
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cur_dir = os.getcwd()
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program = self.program
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def _join(name):
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return os.path.join(cur_dir, name)
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argv = ['progname', _join('foo/bar/baz.py'), _join('green\\red.py')]
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self._patch_isfile(argv)
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program.createTests = lambda: None
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program.parseArgs(argv)
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expected = ['foo.bar.baz', 'green.red']
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self.assertEqual(program.testNames, expected)
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def testParseArgsAbsolutePathsThatCannotBeConverted(self):
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program = self.program
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# even on Windows '/...' is considered absolute by os.path.abspath
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argv = ['progname', '/foo/bar/baz.py', '/green/red.py']
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self._patch_isfile(argv)
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program.createTests = lambda: None
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program.parseArgs(argv)
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self.assertEqual(program.testNames, argv[1:])
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# it may be better to use platform specific functions to normalise paths
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# rather than accepting '.PY' and '\' as file seprator on Linux / Mac
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# it would also be better to check that a filename is a valid module
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# identifier (we have a regex for this in loader.py)
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# for invalid filenames should we raise a useful error rather than
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# leaving the current error message (import of filename fails) in place?
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if __name__ == '__main__':
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unittest.main()
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