Edit File: testresult.py
'''Test runner and result class for the regression test suite. ''' import functools import io import sys import time import traceback import unittest import xml.etree.ElementTree as ET from datetime import datetime class RegressionTestResult(unittest.TextTestResult): separator1 = '=' * 70 + '\n' separator2 = '-' * 70 + '\n' def __init__(self, stream, descriptions, verbosity): super().__init__(stream=stream, descriptions=descriptions, verbosity=0) self.buffer = True self.__suite = ET.Element('testsuite') self.__suite.set('start', datetime.utcnow().isoformat(' ')) self.__e = None self.__start_time = None self.__results = [] self.__verbose = bool(verbosity) @classmethod def __getId(cls, test): try: test_id = test.id except AttributeError: return str(test) try: return test_id() except TypeError: return str(test_id) return repr(test) def startTest(self, test): super().startTest(test) self.__e = e = ET.SubElement(self.__suite, 'testcase') self.__start_time = time.perf_counter() if self.__verbose: self.stream.write(f'{self.getDescription(test)} ... ') self.stream.flush() def _add_result(self, test, capture=False, **args): e = self.__e self.__e = None if e is None: return e.set('name', args.pop('name', self.__getId(test))) e.set('status', args.pop('status', 'run')) e.set('result', args.pop('result', 'completed')) if self.__start_time: e.set('time', f'{time.perf_counter() - self.__start_time:0.6f}') if capture: if self._stdout_buffer is not None: stdout = self._stdout_buffer.getvalue().rstrip() ET.SubElement(e, 'system-out').text = stdout if self._stderr_buffer is not None: stderr = self._stderr_buffer.getvalue().rstrip() ET.SubElement(e, 'system-err').text = stderr for k, v in args.items(): if not k or not v: continue e2 = ET.SubElement(e, k) if hasattr(v, 'items'): for k2, v2 in v.items(): if k2: e2.set(k2, str(v2)) else: e2.text = str(v2) else: e2.text = str(v) def __write(self, c, word): if self.__verbose: self.stream.write(f'{word}\n') @classmethod def __makeErrorDict(cls, err_type, err_value, err_tb): if isinstance(err_type, type): if err_type.__module__ == 'builtins': typename = err_type.__name__ else: typename = f'{err_type.__module__}.{err_type.__name__}' else: typename = repr(err_type) msg = traceback.format_exception(err_type, err_value, None) tb = traceback.format_exception(err_type, err_value, err_tb) return { 'type': typename, 'message': ''.join(msg), '': ''.join(tb), } def addError(self, test, err): self._add_result(test, True, error=self.__makeErrorDict(*err)) super().addError(test, err) self.__write('E', 'ERROR') def addExpectedFailure(self, test, err): self._add_result(test, True, output=self.__makeErrorDict(*err)) super().addExpectedFailure(test, err) self.__write('x', 'expected failure') def addFailure(self, test, err): self._add_result(test, True, failure=self.__makeErrorDict(*err)) super().addFailure(test, err) self.__write('F', 'FAIL') def addSkip(self, test, reason): self._add_result(test, skipped=reason) super().addSkip(test, reason) self.__write('S', f'skipped {reason!r}') def addSuccess(self, test): self._add_result(test) super().addSuccess(test) self.__write('.', 'ok') def addUnexpectedSuccess(self, test): self._add_result(test, outcome='UNEXPECTED_SUCCESS') super().addUnexpectedSuccess(test) self.__write('u', 'unexpected success') def printErrors(self): if self.__verbose: self.stream.write('\n') self.printErrorList('ERROR', self.errors) self.printErrorList('FAIL', self.failures) def printErrorList(self, flavor, errors): for test, err in errors: self.stream.write(self.separator1) self.stream.write(f'{flavor}: {self.getDescription(test)}\n') self.stream.write(self.separator2) self.stream.write('%s\n' % err) def get_xml_element(self): e = self.__suite e.set('tests', str(self.testsRun)) e.set('errors', str(len(self.errors))) e.set('failures', str(len(self.failures))) return e class QuietRegressionTestRunner: def __init__(self, stream, buffer=False): self.result = RegressionTestResult(stream, None, 0) self.result.buffer = buffer def run(self, test): test(self.result) return self.result def get_test_runner_class(verbosity, buffer=False): if verbosity: return functools.partial(unittest.TextTestRunner, resultclass=RegressionTestResult, buffer=buffer, verbosity=verbosity) return functools.partial(QuietRegressionTestRunner, buffer=buffer) def get_test_runner(stream, verbosity, capture_output=False): return get_test_runner_class(verbosity, capture_output)(stream) if __name__ == '__main__': class TestTests(unittest.TestCase): def test_pass(self): pass def test_pass_slow(self): time.sleep(1.0) def test_fail(self): print('stdout', file=sys.stdout) print('stderr', file=sys.stderr) self.fail('failure message') def test_error(self): print('stdout', file=sys.stdout) print('stderr', file=sys.stderr) raise RuntimeError('error message') suite = unittest.TestSuite() suite.addTest(unittest.makeSuite(TestTests)) stream = io.StringIO() runner_cls = get_test_runner_class(sum(a == '-v' for a in sys.argv)) runner = runner_cls(sys.stdout) result = runner.run(suite) print('Output:', stream.getvalue()) print('XML: ', end='') for s in ET.tostringlist(result.get_xml_element()): print(s.decode(), end='') print()
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