?? unittest.py
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description=None): TestCase.__init__(self) self.__setUpFunc = setUp self.__tearDownFunc = tearDown self.__testFunc = testFunc self.__description = description def setUp(self): if self.__setUpFunc is not None: self.__setUpFunc() def tearDown(self): if self.__tearDownFunc is not None: self.__tearDownFunc() def runTest(self): self.__testFunc() def id(self): return self.__testFunc.__name__ def __str__(self): return "%s (%s)" % (self.__class__, self.__testFunc.__name__) def __repr__(self): return "<%s testFunc=%s>" % (self.__class__, self.__testFunc) def shortDescription(self): if self.__description is not None: return self.__description doc = self.__testFunc.__doc__ return doc and string.strip(string.split(doc, "\n")[0]) or None############################################################################### Locating and loading tests##############################################################################class TestLoader: """This class is responsible for loading tests according to various criteria and returning them wrapped in a Test """ testMethodPrefix = 'test' sortTestMethodsUsing = cmp suiteClass = TestSuite def loadTestsFromTestCase(self, testCaseClass): """Return a suite of all tests cases contained in testCaseClass""" return self.suiteClass(map(testCaseClass, self.getTestCaseNames(testCaseClass))) def loadTestsFromModule(self, module): """Return a suite of all tests cases contained in the given module""" tests = [] for name in dir(module): obj = getattr(module, name) if type(obj) == types.ClassType and issubclass(obj, TestCase): tests.append(self.loadTestsFromTestCase(obj)) return self.suiteClass(tests) def loadTestsFromName(self, name, module=None): """Return a suite of all tests cases given a string specifier. The name may resolve either to a module, a test case class, a test method within a test case class, or a callable object which returns a TestCase or TestSuite instance. The method optionally resolves the names relative to a given module. """ parts = string.split(name, '.') if module is None: if not parts: raise ValueError, "incomplete test name: %s" % name else: parts_copy = parts[:] while parts_copy: try: module = __import__(string.join(parts_copy,'.')) break except ImportError: del parts_copy[-1] if not parts_copy: raise parts = parts[1:] obj = module for part in parts: obj = getattr(obj, part) import unittest if type(obj) == types.ModuleType: return self.loadTestsFromModule(obj) elif type(obj) == types.ClassType and issubclass(obj, unittest.TestCase): return self.loadTestsFromTestCase(obj) elif type(obj) == types.UnboundMethodType: return obj.im_class(obj.__name__) elif callable(obj): test = obj() if not isinstance(test, unittest.TestCase) and \ not isinstance(test, unittest.TestSuite): raise ValueError, \ "calling %s returned %s, not a test" % (obj,test) return test else: raise ValueError, "don't know how to make test from: %s" % obj def loadTestsFromNames(self, names, module=None): """Return a suite of all tests cases found using the given sequence of string specifiers. See 'loadTestsFromName()'. """ suites = [] for name in names: suites.append(self.loadTestsFromName(name, module)) return self.suiteClass(suites) def getTestCaseNames(self, testCaseClass): """Return a sorted sequence of method names found within testCaseClass """ testFnNames = filter(lambda n,p=self.testMethodPrefix: n[:len(p)] == p, dir(testCaseClass)) for baseclass in testCaseClass.__bases__: for testFnName in self.getTestCaseNames(baseclass): if testFnName not in testFnNames: # handle overridden methods testFnNames.append(testFnName) if self.sortTestMethodsUsing: testFnNames.sort(self.sortTestMethodsUsing) return testFnNamesdefaultTestLoader = TestLoader()############################################################################### Patches for old functions: these functions should be considered obsolete##############################################################################def _makeLoader(prefix, sortUsing, suiteClass=None): loader = TestLoader() loader.sortTestMethodsUsing = sortUsing loader.testMethodPrefix = prefix if suiteClass: loader.suiteClass = suiteClass return loaderdef getTestCaseNames(testCaseClass, prefix, sortUsing=cmp): return _makeLoader(prefix, sortUsing).getTestCaseNames(testCaseClass)def makeSuite(testCaseClass, prefix='test', sortUsing=cmp, suiteClass=TestSuite): return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromTestCase(testCaseClass)def findTestCases(module, prefix='test', sortUsing=cmp, suiteClass=TestSuite): return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromModule(module)############################################################################### Text UI##############################################################################class _WritelnDecorator: """Used to decorate file-like objects with a handy 'writeln' method""" def __init__(self,stream): self.stream = stream def __getattr__(self, attr): return getattr(self.stream,attr) def writeln(self, *args): if args: apply(self.write, args) self.write('\n') # text-mode streams translate to \r\n if neededclass _TextTestResult(TestResult): """A test result class that can print formatted text results to a stream. Used by TextTestRunner. """ separator1 = '=' * 70 separator2 = '-' * 70 def __init__(self, stream, descriptions, verbosity): TestResult.__init__(self) self.stream = stream self.showAll = verbosity > 1 self.dots = verbosity == 1 self.descriptions = descriptions def getDescription(self, test): if self.descriptions: return test.shortDescription() or str(test) else: return str(test) def startTest(self, test): TestResult.startTest(self, test) if self.showAll: self.stream.write(self.getDescription(test)) self.stream.write(" ... ") def addSuccess(self, test): TestResult.addSuccess(self, test) if self.showAll: self.stream.writeln("ok") elif self.dots: self.stream.write('.') def addError(self, test, err): TestResult.addError(self, test, err) if self.showAll: self.stream.writeln("ERROR") elif self.dots: self.stream.write('E') def addFailure(self, test, err): TestResult.addFailure(self, test, err) if self.showAll: self.stream.writeln("FAIL") elif self.dots: self.stream.write('F') def printErrors(self): if self.dots or self.showAll: self.stream.writeln() self.printErrorList('ERROR', self.errors) self.printErrorList('FAIL', self.failures) def printErrorList(self, flavour, errors): for test, err in errors: self.stream.writeln(self.separator1) self.stream.writeln("%s: %s" % (flavour,self.getDescription(test))) self.stream.writeln(self.separator2) self.stream.writeln("%s" % err)class TextTestRunner: """A test runner class that displays results in textual form. It prints out the names of tests as they are run, errors as they occur, and a summary of the results at the end of the test run. """ def __init__(self, stream=sys.stderr, descriptions=1, verbosity=1): self.stream = _WritelnDecorator(stream) self.descriptions = descriptions self.verbosity = verbosity def _makeResult(self): return _TextTestResult(self.stream, self.descriptions, self.verbosity) def run(self, test): "Run the given test case or test suite." result = self._makeResult() startTime = time.time() test(result) stopTime = time.time() timeTaken = float(stopTime - startTime) result.printErrors() self.stream.writeln(result.separator2) run = result.testsRun self.stream.writeln("Ran %d test%s in %.3fs" % (run, run != 1 and "s" or "", timeTaken)) self.stream.writeln() if not result.wasSuccessful(): self.stream.write("FAILED (") failed, errored = map(len, (result.failures, result.errors)) if failed: self.stream.write("failures=%d" % failed) if errored: if failed: self.stream.write(", ") self.stream.write("errors=%d" % errored) self.stream.writeln(")") else: self.stream.writeln("OK") return result############################################################################### Facilities for running tests from the command line##############################################################################class TestProgram: """A command-line program that runs a set of tests; this is primarily for making test modules conveniently executable. """ USAGE = """\Usage: %(progName)s [options] [test] [...]Options: -h, --help Show this message -v, --verbose Verbose output -q, --quiet Minimal outputExamples: %(progName)s - run default set of tests %(progName)s MyTestSuite - run suite 'MyTestSuite' %(progName)s MyTestCase.testSomething - run MyTestCase.testSomething %(progName)s MyTestCase - run all 'test*' test methods in MyTestCase""" def __init__(self, module='__main__', defaultTest=None, argv=None, testRunner=None, testLoader=defaultTestLoader): if type(module) == type(''): self.module = __import__(module) for part in string.split(module,'.')[1:]: self.module = getattr(self.module, part) else: self.module = module if argv is None: argv = sys.argv self.verbosity = 1 self.defaultTest = defaultTest self.testRunner = testRunner self.testLoader = testLoader self.progName = os.path.basename(argv[0]) self.parseArgs(argv) self.runTests() def usageExit(self, msg=None): if msg: print msg print self.USAGE % self.__dict__ sys.exit(2) def parseArgs(self, argv): import getopt try: options, args = getopt.getopt(argv[1:], 'hHvq', ['help','verbose','quiet']) for opt, value in options: if opt in ('-h','-H','--help'): self.usageExit() if opt in ('-q','--quiet'): self.verbosity = 0 if opt in ('-v','--verbose'): self.verbosity = 2 if len(args) == 0 and self.defaultTest is None: self.test = self.testLoader.loadTestsFromModule(self.module) return if len(args) > 0: self.testNames = args else: self.testNames = (self.defaultTest,) self.createTests() except getopt.error, msg: self.usageExit(msg) def createTests(self): self.test = self.testLoader.loadTestsFromNames(self.testNames, self.module) def runTests(self): if self.testRunner is None: self.testRunner = TextTestRunner(verbosity=self.verbosity) result = self.testRunner.run(self.test) sys.exit(not result.wasSuccessful())main = TestProgram############################################################################### Executing this module from the command line##############################################################################if __name__ == "__main__": main(module=None)
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